---
title: "Steel Grades Chart: 547 Grades, Composition, Equivalents"
source: "https://www.laxconsteels.com/grades/"
description: "Chemical composition for 547 steel grades in one chart: AISI, EN, DIN and JIS SUS designations across austenitic, ferritic, duplex, martensitic and PH."
---
# Grades

A reference across 500+ steel and alloy grades in 11 families, with chemical composition by weight percent.

[Cross-standard equivalents](https://www.laxconsteels.com/grades/equivalents/) [Pitting resistance](https://www.laxconsteels.com/grades/pitting-resistance/) [Dataset](https://www.laxconsteels.com/grades/data/)

500+ grades

## Austenitic

*71* grades

Austenitic grades hold a face-centred cubic structure at room temperature, stabilised by nickel, manganese and nitrogen against a chromium content of roughly 16 to 26 percent. They are non-magnetic in the annealed condition and cannot be hardened by heat treatment: they work-harden instead, which leaves them ductile and tough down to cryogenic temperatures. The 300 series accounts for most stainless steel in use, in tanks, piping, fasteners, food and pharmaceutical equipment and chemical process plant.

[Austenitic grades in detail](https://www.laxconsteels.com/grades/austenitic/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | N % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| AISI 201 | EN 1.4372 · S20100 | ≤0.15 | 5.5-7.5 | ≤1.0 | 16.0-18.0 | 3.5-5.5 |  | ≤0.25 | S ≤0.03 · P ≤0.06 |
| AISI 202 | S20200 | ≤0.15 | 7.5-10.0 | ≤1.0 | 17.0-19.0 | 4.0-6.0 |  | ≤0.25 | S ≤0.03 · P ≤0.06 |
| AISI 204 Cu |  | ≤0.15 | 6.5-9.0 | ≤1.0 | 15.5-17.5 | 1.5-3.5 |  | 0.05-0.25 | S ≤0.03 · P ≤0.06 · Cu 2.0-4.0 |
| AISI 301 | EN 1.4310 · S30100 | ≤0.15 | ≤2.0 | ≤1.0 | 16.0-18.0 | 6.0-8.0 |  | ≤0.1 | S ≤0.03 · P ≤0.045 |
| AISI 302 | EN 1.4300 · S30200 | ≤0.15 | ≤2.0 | ≤1.0 | 17.0-19.0 | 8.0-10.0 |  | ≤0.1 | S ≤0.03 · P ≤0.045 |
| AISI 302 B | S30215 | ≤0.15 | ≤2.0 | 2.0-3.0 | 17.0-19.0 | 8.0-10.0 |  |  | S ≤0.03 · P ≤0.045 |
| [AISI 303](https://www.laxconsteels.com/grades/aisi-303/) | EN 1.4305 · S30300 · SUS 303 | ≤0.15 | ≤2.0 | ≤1.0 | 17.0-19.0 | 8.0-10.0 |  |  | S ≥0.15 · P ≤0.2 · Zr+Mo ≤0.6 |
| AISI 303 SE | S30323 | ≤0.15 | ≤2.0 | ≤1.0 | 17.0-19.0 | 8.0-10.0 |  |  | S ≤0.06 · P ≤0.2 · Se ≥0.15 |
| [AISI 304](https://www.laxconsteels.com/grades/aisi-304/) | EN 1.4301 · S30400 · SUS 304 | ≤0.08 | ≤2.0 | ≤0.75 | 18.0-20.0 | 8.0-10.5 |  | ≤0.1 | S ≤0.03 · P ≤0.045 |
| [AISI 304 L](https://www.laxconsteels.com/grades/aisi-304l/) | EN 1.4307 · S30403 · SUS 304L | ≤0.03 | ≤2.0 | ≤0.75 | 18.0-20.0 | 8.0-12.0 |  | ≤0.1 | S ≤0.03 · P ≤0.045 |
| [AISI 304 H](https://www.laxconsteels.com/grades/aisi-304h/) | EN 1.4948 · S30409 | 0.04-0.1 | ≤2.0 | ≤0.75 | 18.0-20.0 | 8.0-10.5 |  |  | S ≤0.03 · P ≤0.04 |
| AISI 304 N | S30451 | ≤0.08 | ≤2.0 | ≤0.75 | 18.0-20.0 | 8.0-10.5 |  | 0.1-0.16 | S ≤0.03 · P ≤0.045 |
| AISI 304 LN | EN 1.4311 · S30453 | ≤0.03 | ≤2.0 | ≤0.75 | 18.0-20.0 | 8.0-12.0 |  | 0.1-0.16 | S ≤0.03 · P ≤0.045 |
| AISI 305 | EN 1.4303 · S30500 · SUS 305J1 | ≤0.12 | ≤2.0 | ≤0.75 | 17.0-19.0 | 10.5-13.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 308 | S30800 | ≤0.08 | ≤2.0 | ≤1.0 | 19.0-21.0 | 10.0-12.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 309 | EN 1.4828 · S30900 | ≤0.2 | ≤2.0 | ≤0.75 | 22.0-24.0 | 12.0-15.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 309 S | EN 1.4833 · S30908 | ≤0.08 | ≤2.0 | ≤0.75 | 22.0-24.0 | 12.0-15.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 310 | EN 1.4845 · S31000 | ≤0.25 | ≤2.0 | ≤1.5 | 24.0-26.0 | 19.0-22.0 |  |  | S ≤0.03 · P ≤0.045 |
| [AISI 310 S](https://www.laxconsteels.com/grades/aisi-310s/) | EN 1.4845 · S31008 | ≤0.08 | ≤2.0 | ≤1.5 | 24.0-26.0 | 19.0-22.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 314 | EN 1.4841 · S31400 | ≤0.25 | ≤2.0 | 1.5-3.0 | 23.0-26.0 | 19.0-22.0 |  |  | S ≤0.03 · P ≤0.045 |
| [AISI 316](https://www.laxconsteels.com/grades/aisi-316/) | EN 1.4401 · S31600 · SUS 316 | ≤0.08 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | ≤0.1 | S ≤0.03 · P ≤0.045 |
| [AISI 316 L](https://www.laxconsteels.com/grades/aisi-316l/) | EN 1.4404 · S31603 · SUS 316L | ≤0.03 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | ≤0.1 | S ≤0.03 · P ≤0.045 |
| AISI 316 H |  | 0.04-0.1 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |  | S ≤0.03 · P ≤0.04 |
| AISI 316 N | S31651 | ≤0.08 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.1-0.16 | S ≤0.03 · P ≤0.045 |
| AISI 316 LN | EN 1.4406 · S31653 | ≤0.03 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.1-0.16 | S ≤0.03 · P ≤0.045 |
| [AISI 316 Ti](https://www.laxconsteels.com/grades/aisi-316ti/) | EN 1.4571 · S31635 · SUS 316Ti | ≤0.08 | ≤2.0 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | ≤0.1 | S ≤0.03 · P ≤0.045 · Ti ≤0.7 Ti minimum 5x(C+N) per ASTM A240, maximum 0.70 |
| AISI 317 | S31700 | ≤0.08 | ≤2.0 | ≤1.0 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | ≤0.1 | S ≤0.03 · P ≤0.045 |
| AISI 317 L | EN 1.4438 · S31703 | ≤0.03 | ≤2.0 | ≤1.0 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | ≤0.1 | S ≤0.03 · P ≤0.045 |
| [AISI 321](https://www.laxconsteels.com/grades/aisi-321/) | EN 1.4541 · S32100 · SUS 321 | ≤0.08 | ≤2.0 | ≤0.75 | 17.0-19.0 | 9.0-12.0 |  | ≤0.1 | S ≤0.03 · P ≤0.045 · Ti ≤0.7 Ti minimum 5x(C+N) per ASTM A240, maximum 0.70 |
| AISI 321 H | EN 1.4878 · S32109 | 0.04-0.1 | ≤2.0 | ≤0.75 | 17.0-19.0 | 9.0-12.0 |  |  | S ≤0.03 · P ≤0.045 · Ti ≤0.7 Ti minimum 4x(C+N) per ASTM A240, maximum 0.70 |
| [AISI 347](https://www.laxconsteels.com/grades/aisi-347/) | EN 1.4550 · S34700 | ≤0.08 | ≤2.0 | ≤0.75 | 17.0-19.0 | 9.0-13.0 |  |  | S ≤0.03 · P ≤0.045 · Nb ≤1.0 Nb minimum 10xC per ASTM A240, maximum 1.00 |
| AISI 348 | S34800 | ≤0.08 | ≤2.0 | ≤0.75 | 17.0-19.0 | 9.0-13.0 |  |  | S ≤0.03 · P ≤0.045 · Nb+Ta ≤1.0 · Ta ≤0.1 · Co ≤0.2 Nb+Ta minimum 10xC per ASTM A240, maximum 1.00 |
| AISI 384 | S38400 | ≤0.08 | ≤2.0 | ≤1.0 | 15.0-17.0 | 17.0-19.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 385 |  | ≤0.08 | ≤2.0 | ≤1.0 | 11.5-13.5 | 14.0-16.0 |  |  | S ≤0.03 · P ≤0.045 |
| AISI 904 L | EN 1.4539 · N08904 | ≤0.02 | ≤2.0 | ≤1.0 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 |  | S ≤0.03 · P ≤0.045 · Cu 1.0-2.0 |
| DIN 1.4301 | S30400 · SUS 304 · 304 | ≤0.07 | ≤2.0 | ≤1.0 | 17.0-19.5 | 8.0-10.5 |  | ≤0.11 | S ≤0.015 · P ≤0.045 |
| DIN 1.4307 | S30403 · SUS 304L · 304L | ≤0.03 | ≤2.0 | ≤1.0 | 17.5-19.5 | 8.0-10.0 |  | ≤0.11 | S ≤0.015 · P ≤0.045 |
| DIN 1.4401 | S31600 · SUS 316 · 316 | ≤0.07 | ≤2.0 | ≤1.0 | 16.5-18.5 | 10.0-13.0 | 2.0-2.5 | ≤0.1 | S ≤0.015 · P ≤0.045 |
| DIN 1.4404 | S31603 · SUS 316L · 316L | ≤0.03 | ≤2.0 | ≤1.0 | 16.5-18.0 | 10.0-13.0 | 2.0-2.5 | ≤0.1 | S ≤0.015 · P ≤0.045 |
| DIN 1.4541 | S32100 · SUS 321 · 321 | ≤0.08 | ≤2.0 | ≤1.0 | 17.0-19.0 | 9.0-12.0 |  |  | S ≤0.015 · P ≤0.045 · Ti ≤0.7 Ti minimum 5xC per EN 10088-3, maximum 0.70 |
| DIN 1.4550 | S34700 · 347 | ≤0.08 | ≤2.0 | ≤1.0 | 17.0-19.0 | 9.0-12.0 |  |  | S ≤0.015 · P ≤0.045 · Nb ≤1.0 Nb minimum 10xC per EN 10088-3, maximum 1.00 |
| DIN 1.4571 | S31635 · SUS 316Ti · 316Ti | ≤0.08 | ≤2.0 | ≤1.0 | 16.5-18.5 | 10.5-13.5 | 2.0-2.5 |  | S ≤0.015 · P ≤0.045 · Ti ≤0.7 Ti minimum 5xC per EN 10088-3, maximum 0.70 |
| DIN 1.4435 |  | ≤0.03 | ≤2.0 | ≤1.0 | 17.0-18.5 | 12.5-15.0 | 2.5-3.0 |  | S ≤0.015 · P ≤0.045 |
| DIN 1.4828 | 309 | ≤0.2 | ≤2.0 | 1.5-2.5 | 19.0-21.0 | 11.0-13.0 |  | ≤0.11 | S ≤0.015 · P ≤0.04 |
| XM 19 |  | ≤0.06 | 4.0-6.0 | ≤1.0 | 20.5-23.5 | 11.5-13.5 | 1.5-3.0 | 0.2-0.4 | S ≤0.01 · P ≤0.04 · Nb 0.1-0.3 · V 0.1-0.3 |
| NITRONIC 60 |  | ≤0.1 | 7.0-9.0 | 3.5-4.5 | 16.0-18.0 | 8.0-9.0 | ≤0.75 | 0.08-0.18 | S ≤0.01 · P ≤0.04 |
| ALLOY 20 |  | ≤0.07 | ≤2.0 | ≤1.0 | 19.0-21.0 | 32.0-38.0 | 2.0-3.0 |  | S ≤0.035 · P ≤0.045 · Cu 3.0-4.0 · Nb+Ta ≤1.0 Nb+Ta minimum 8xC per ASTM B473, maximum 1.00 |
| SMO 254 | EN 1.4547 · S31254 | ≤0.02 | ≤1.0 | ≤0.8 | 19.5-20.5 | 17.5-18.5 | 6.0-6.5 | 0.18-0.22 | S ≤0.01 · P ≤0.03 · Cu 0.5-1.0 |
| AISI 201 L |  | ≤0.03 | 5.5-7.5 | ≤0.75 | 16.0-18.0 | 3.5-5.5 |  | ≤0.25 | S ≤0.03 · P ≤0.045 Low carbon 201 per ASTM A240 (UNS S20103) |
| AISI 301 L | EN 1.4318 · S30103 | ≤0.03 | ≤2.0 | ≤1.0 | 16.0-18.0 | 6.0-8.0 |  | ≤0.2 | S ≤0.03 · P ≤0.045 Low carbon 301 per ASTM A240 (UNS S30103) |
| AISI 301 LN | EN 1.4318 · S30153 | ≤0.03 | ≤2.0 | ≤1.0 | 16.0-18.0 | 6.0-8.0 |  | 0.07-0.2 | S ≤0.03 · P ≤0.045 Low carbon nitrogen strengthened 301 per ASTM A240 (UNS S30153) |
| AISI 317 LMN |  | ≤0.03 | ≤2.0 | ≤0.75 | 17.0-20.0 | 13.5-17.5 | 4.0-5.0 | 0.1-0.2 | S ≤0.03 · P ≤0.045 High molybdenum nitrogen alloyed 317 per ASTM A240 (UNS S31726) |
| AISI 347 H | EN 1.4550 · S34709 | 0.04-0.1 | ≤2.0 | ≤0.75 | 17.0-19.0 | 9.0-13.0 |  |  | S ≤0.03 · P ≤0.045 · Nb ≤1.0 Nb minimum 8xC per ASTM A240, maximum 1.00 (UNS S34709) |
| SUS 304 | EN 1.4301 · S30400 · 304 | ≤0.08 | ≤2.0 | ≤1.0 | 18.0-20.0 | 8.0-10.5 |  |  | S ≤0.03 · P ≤0.045 Japanese designation per JIS G4303, equivalent to AISI 304 |
| SUS 316L | EN 1.4404 · S31603 · 316L | ≤0.03 | ≤2.0 | ≤1.0 | 16.0-18.0 | 12.0-15.0 | 2.0-3.0 |  | S ≤0.03 · P ≤0.045 Japanese designation per JIS G4303; note the higher nickel range than AISI 316L |
| 08Kh18N10 |  | ≤0.08 | ≤2.0 | ≤0.8 | 17.0-19.0 | 9.0-11.0 |  |  | S ≤0.02 · P ≤0.035 Russian grade per GOST 5632, close to AISI 304 |
| 12Kh18N10T |  | ≤0.12 | ≤2.0 | ≤0.8 | 17.0-19.0 | 9.0-11.0 |  |  | S ≤0.02 · P ≤0.035 · Ti ≤0.8 Ti minimum 5xC per GOST 5632, maximum 0.8; close to AISI 321 |
| 08Kh18N10T |  | ≤0.08 | ≤2.0 | ≤0.8 | 17.0-19.0 | 9.0-11.0 |  |  | S ≤0.02 · P ≤0.035 · Ti ≤0.7 Ti minimum 5xC per GOST 5632, maximum 0.7 |
| 10Kh17N13M2T |  | ≤0.1 | ≤2.0 | ≤0.8 | 16.0-18.0 | 12.0-14.0 | 2.0-3.0 |  | S ≤0.02 · P ≤0.035 · Ti ≤0.7 Ti minimum 5xC per GOST 5632, maximum 0.7; close to AISI 316Ti |
| 253 MA / S30815 | EN 1.4835 · S30815 | 0.05-0.1 | ≤0.8 | 1.4-2.0 | 20.0-22.0 | 10.0-12.0 |  | 0.14-0.2 | P ≤0.04 · S ≤0.03 · Ce 0.03-0.08 Heat-resisting austenitic grade, UNS S30815, per ASTM A240 Table 1. |
| AL-6XN / N08367 | EN 1.4529 · N08367 | ≤0.03 | ≤2.0 | ≤1.0 | 20.0-22.0 | 23.5-25.5 | 6.0-7.0 | 0.18-0.25 | P ≤0.04 · S ≤0.03 · Cu ≤0.75 Super-austenitic 6 percent molybdenum grade, UNS N08367, per ASTM A240 Table 1. |
| 654 SMO / S32654 | S32654 | ≤0.02 | 2.0-4.0 | ≤0.5 | 24.0-25.0 | 21.0-23.0 | 7.0-8.0 | 0.45-0.55 | P ≤0.03 · S ≤0.005 · Cu 0.3-0.6 Super-austenitic 7 percent molybdenum grade, UNS S32654, per ASTM A240 Table 1. |
| AISI 309 H |  | 0.04-0.1 | ≤2.0 | ≤0.75 | 22.0-24.0 | 12.0-15.0 |  |  | P ≤0.045 · S ≤0.03 High-carbon variant for elevated temperature service, UNS S30909, per ASTM A240 Table 1. |
| AISI 310 H |  | 0.04-0.1 | ≤2.0 | ≤0.75 | 24.0-26.0 | 19.0-22.0 |  |  | P ≤0.045 · S ≤0.03 High-carbon variant for elevated temperature service, UNS S31009, per ASTM A240 Table 1. |
| XM 11 / S21904 | S21904 | ≤0.04 | 8.0-10.0 | ≤0.75 | 19.0-21.5 | 5.5-7.5 |  | 0.15-0.4 | P ≤0.06 · S ≤0.03 Nitrogen-strengthened austenitic grade, UNS S21904, per ASTM A240 Table 1. ASTM A276 and A479 bar limits allow silicon to 1.00 and phosphorus to 0.045. |
| XM 29 / S24000 | S24000 | ≤0.08 | 11.5-14.5 | ≤0.75 | 17.0-19.0 | 2.3-3.7 |  | 0.2-0.4 | P ≤0.06 · S ≤0.03 Nitrogen-strengthened austenitic grade, UNS S24000, per ASTM A240 Table 1. ASTM A276 and A479 bar limits allow silicon to 1.00. |
| ALLOY 330 / N08330 | N08330 | ≤0.08 | ≤2.0 | 0.75-1.5 | 17.0-20.0 | 34.0-37.0 |  |  | P ≤0.03 · S ≤0.03 · Cu ≤1.0 · Pb ≤0.005 · Sn ≤0.025 Heat-resisting nickel-iron-chromium grade, UNS N08330, per ASTM A240 Table 1. |
| 302 HQ / S30430 | S30430 | ≤0.03 | ≤2.0 | ≤1.0 | 17.0-19.0 | 8.0-10.0 |  |  | P ≤0.045 · S ≤0.03 · Cu 3.0-4.0 Copper-bearing cold-heading grade, UNS S30430, per ASTM A493 Table 1. |
| XM 1 / S20300 | S20300 | ≤0.08 | 5.0-6.5 | ≤1.0 | 16.0-18.0 | 5.0-6.5 |  |  | P ≤0.04 · S 0.18-0.35 · Cu 1.75-2.25 Free-machining austenitic bar grade, UNS S20300, per ASTM A582 Table 1. |
| XM 2 / S30345 | S30345 | ≤0.15 | ≤2.0 | ≤1.0 | 17.0-19.0 | 8.0-10.0 | 0.4-0.6 |  | P ≤0.05 · S 0.11-0.16 · Al 0.6-1.0 Free-machining austenitic bar grade, UNS S30345, per ASTM A582 Table 1. |
| XM 5 / S30310 | S30310 | ≤0.15 | 2.5-4.5 | ≤1.0 | 17.0-19.0 | 7.0-10.0 |  |  | P ≤0.2 · S ≥0.25 Free-machining austenitic bar grade, UNS S30310, per ASTM A582 Table 1. |

## Duplex

*15* grades

Duplex grades carry roughly equal proportions of austenite and ferrite, reached with about 21 to 27 percent chromium, restrained nickel and controlled nitrogen. The mixed structure gives around twice the yield strength of a standard austenitic grade along with high resistance to chloride pitting and stress corrosion cracking. They are chosen for offshore and subsea equipment, desalination plant, chemical tankers, pressure vessels and bridge structures.

[Duplex grades in detail](https://www.laxconsteels.com/grades/duplex/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | N % | Cu % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| AISI 329 | EN 1.4460 · S32900 | ≤0.08 | ≤1.0 | ≤0.75 | 23.0-28.0 | 2.0-5.0 | 1.0-2.0 |  |  | S ≤0.03 · P ≤0.04 |
| [S 32304](https://www.laxconsteels.com/grades/duplex-2304/) | EN 1.4362 · S32304 · 2304 | ≤0.03 | ≤2.5 | ≤1.0 | 21.5-24.5 | 3.0-5.5 | 0.05-0.6 | 0.05-0.2 | 0.05-0.6 | S ≤0.03 · P ≤0.04 |
| F - 50 |  | ≤0.03 | ≤2.0 | ≤1.0 | 24.0-26.0 | 5.5-6.5 | 1.2-2.0 | 0.14-0.2 |  | S ≤0.03 · P ≤0.045 |
| F - 51 | EN 1.4462 · S31803 | ≤0.03 | ≤2.0 | ≤1.0 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.2 |  | S ≤0.02 · P ≤0.03 |
| F - 59 |  | ≤0.03 | ≤1.5 | ≤0.8 | 24.0-26.0 | 5.5-8.0 | 3.0-5.0 | 0.2-0.35 | 0.5-3.0 | S ≤0.02 · P ≤0.035 |
| DIN 1.4462 | S31803 / S32205 · SUS 329J3L · 2205 | ≤0.03 | ≤2.0 | ≤1.0 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.1-0.22 |  | S ≤0.015 · P ≤0.035 |
| DIN 1.4362 | S32304 · 2304 | ≤0.03 | ≤2.0 | ≤1.0 | 22.0-24.0 | 3.5-5.5 | 0.1-0.6 | 0.05-0.2 | 0.1-0.6 | S ≤0.015 · P ≤0.035 |
| [2205 / S32205 / F60](https://www.laxconsteels.com/grades/duplex-2205/) | EN 1.4462 · S32205 · SUS 329J3L | ≤0.03 | ≤2.0 | ≤1.0 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.2 |  | S ≤0.02 · P ≤0.03 Standard duplex, UNS S32205, ASTM A240 and ASTM A182 F60. EN 1.4462 is the same steel. |
| [2507 / S32750 / F53](https://www.laxconsteels.com/grades/super-duplex-2507/) | EN 1.4410 · S32750 | ≤0.03 | ≤1.2 | ≤0.8 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | ≤0.5 | S ≤0.02 · P ≤0.035 Super duplex, UNS S32750, ASTM A240 and ASTM A182 F53. |
| S32760 / F55 | EN 1.4501 · S32760 | ≤0.03 | ≤1.0 | ≤1.0 | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.2-0.3 | 0.5-1.0 | S ≤0.01 · P ≤0.03 · W 0.5-1.0 Super duplex, UNS S32760, ASTM A240 and ASTM A182 F55, widely known as Zeron 100. |
| S 32101 | EN 1.4162 · S32101 | ≤0.04 | 4.0-6.0 | ≤1.0 | 21.0-22.0 | 1.35-1.7 | 0.1-0.8 | 0.2-0.25 | 0.1-0.8 | S ≤0.03 · P ≤0.04 Lean duplex per ASTM A240, widely known as LDX 2101 |
| F - 61 |  | ≤0.04 | ≤1.5 | ≤1.0 | 24.0-27.0 | 4.5-6.5 | 2.9-3.9 | 0.1-0.25 | 1.5-2.5 | S ≤0.03 · P ≤0.04 Super duplex alloy 255 per ASTM A182 F61 and A240 (UNS S32550) |
| S 32906 | EN 1.4477 · S32906 | ≤0.03 | 0.8-1.5 | ≤0.8 | 28.0-30.0 | 5.8-7.5 | 1.5-2.6 | 0.3-0.4 | ≤0.8 | P ≤0.03 · S ≤0.03 Super duplex grade, UNS S32906, per ASTM A240 Table 1. ASTM A479 bar limits silicon to 0.50. |
| S 32202 | EN 1.4062 · S32202 | ≤0.03 | ≤2.0 | ≤1.0 | 21.5-24.0 | 1.0-2.8 | ≤0.45 | 0.18-0.26 |  | P ≤0.04 · S ≤0.01 Lean duplex grade, UNS S32202, per ASTM A240 Table 1. |
| S 32003 | S32003 | ≤0.03 | ≤2.0 | ≤1.0 | 19.5-22.5 | 3.0-4.0 | 1.5-2.0 | 0.14-0.2 |  | P ≤0.03 · S ≤0.02 Lean duplex grade, UNS S32003, per ASTM A240 Table 1. |

## Precipitation Hardening

*9* grades

Precipitation hardening grades are supplied solution treated and reach full strength through a single low-temperature ageing treatment that precipitates copper, aluminium or titanium-rich phases in a martensitic or austenitic matrix. They combine strength approaching that of alloy steel with corrosion resistance close to the 300 series, and distort very little during ageing. Common applications are aerospace structure and fasteners, valve and pump components, shafts and moulds.

[Precipitation Hardening grades in detail](https://www.laxconsteels.com/grades/precipitation-hardening/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | Cu % | Al % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [17/4-PH](https://www.laxconsteels.com/grades/17-4-ph/) | EN 1.4542 · S17400 · SUS 630 | ≤0.07 | ≤1.0 | ≤1.0 | 15.0-17.5 | 3.0-5.0 |  | 3.0-5.0 |  | S ≤0.03 · P ≤0.04 · Nb+Ta 0.15-0.45 |
| DIN 1.4542 | SUS 630 · 17-4-PH | ≤0.07 | ≤1.5 | ≤0.7 | 15.0-17.0 | 3.0-5.0 | ≤0.6 | 3.0-5.0 |  | S ≤0.015 · P ≤0.04 · Nb ≤0.45 Nb minimum 5xC per EN 10088-3, maximum 0.45 |
| [15/5-PH](https://www.laxconsteels.com/grades/15-5-ph/) | EN 1.4545 | ≤0.07 | ≤1.0 | ≤1.0 | 14.0-15.5 | 3.5-5.5 |  | 2.5-4.5 |  | S ≤0.03 · P ≤0.04 · Nb+Ta 0.15-0.45 Ferrite free refinement of 17-4 PH per ASTM A564 (UNS S15500) |
| 17/7-PH | EN 1.4568 | ≤0.09 | ≤1.0 | ≤1.0 | 16.0-18.0 | 6.5-7.75 |  |  | 0.75-1.5 | S ≤0.03 · P ≤0.04 Semi austenitic aluminium hardened grade per ASTM A564 type 631 (UNS S17700) |
| 13/8-Mo PH |  | ≤0.05 | ≤0.2 | ≤0.1 | 12.25-13.25 | 7.5-8.5 | 2.0-2.5 |  | 0.9-1.35 | S ≤0.008 · P ≤0.01 · N ≤0.01 PH 13-8 Mo per ASTM A564 (UNS S13800) |
| A 286 / S66286 | S66286 | ≤0.08 | ≤2.0 | ≤1.0 | 13.5-16.0 | 24.0-27.0 | 1.0-1.5 |  | ≤0.35 | P ≤0.04 · S ≤0.03 · Ti 1.9-2.35 · V 0.1-0.5 · B 0.001-0.01 Iron-base age-hardening alloy, UNS S66286, per ASTM A453 Table 3 grade 660. |
| 15/7-Mo PH |  | ≤0.09 | ≤1.0 | ≤1.0 | 14.0-16.0 | 6.5-7.75 | 2.0-3.0 |  | 0.75-1.5 | P ≤0.04 · S ≤0.03 Semi-austenitic precipitation hardening grade, UNS S15700, type 632, per ASTM A564 Table 1. |
| Custom 450 / S45000 | S45000 | ≤0.05 | ≤1.0 | ≤1.0 | 14.0-16.0 | 5.0-7.0 | 0.5-1.0 | 1.25-1.75 |  | P ≤0.03 · S ≤0.03 Martensitic precipitation hardening grade, UNS S45000, XM-25, per ASTM A564 Table 1. Niobium minimum 8xC, with no maximum stated. |
| Custom 455 / S45500 | S45500 | ≤0.03 | ≤0.5 | ≤0.5 | 11.0-12.5 | 7.5-9.5 | ≤0.5 | 1.5-2.5 |  | P ≤0.015 · S ≤0.015 · Ti 0.9-1.4 · Nb+Ta 0.1-0.5 Martensitic precipitation hardening grade, UNS S45500, XM-16, per ASTM A564 Table 1. |

## Martensitic

*46* grades

Martensitic grades take 11.5 to 18 percent chromium with enough carbon, roughly 0.1 to 1.2 percent, to transform to hard martensite when quenched from the austenitic range. They are magnetic, and once hardened and tempered they reach the highest strength and wear resistance of the stainless families, at the cost of corrosion resistance and weldability. Typical uses are cutlery and surgical blades, valve and pump shafts, turbine blades, bearings and fasteners.

[Martensitic grades in detail](https://www.laxconsteels.com/grades/martensitic/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| AISI 403 | EN 1.4000 · S40300 · SUS 403 | ≤0.15 | ≤1.0 | ≤0.5 | 11.5-13.0 |  |  | S ≤0.03 · P ≤0.04 |
| [AISI 410](https://www.laxconsteels.com/grades/aisi-410/) | EN 1.4006 · S41000 · SUS 410 | 0.08-0.15 | ≤1.0 | ≤1.0 | 11.5-13.5 | ≤0.75 |  | S ≤0.03 · P ≤0.04 |
| AISI 414 | S41400 | ≤0.15 | ≤1.0 | ≤1.0 | 11.5-13.5 | 1.25-2.5 |  | S ≤0.03 · P ≤0.04 |
| [AISI 416](https://www.laxconsteels.com/grades/aisi-416/) | EN 1.4005 · S41600 · SUS 416 | ≤0.15 | ≤1.25 | ≤1.0 | 12.0-14.0 |  |  | S ≥0.15 · P ≤0.06 · Zr+Mo ≤0.6 |
| AISI 416 SE | S41623 | ≤0.15 | ≤1.25 | ≤1.0 | 12.0-14.0 |  |  | S ≤0.06 · P ≤0.06 · Se ≥0.15 |
| [AISI 420](https://www.laxconsteels.com/grades/aisi-420/) | EN 1.4021 · S42000 · SUS 420J1 | ≥0.15 | ≤1.0 | ≤1.0 | 12.0-14.0 |  |  | S ≤0.03 · P ≤0.04 |
| AISI 420 F | S42020 | 0.3-0.4 | ≤1.25 | ≤1.0 | 12.0-14.0 | ≤0.5 | ≤0.6 | S ≥0.15 · P ≤0.06 |
| AISI 420 F Se |  | 0.3-0.45 | ≤1.25 | ≤1.0 | 12.0-14.0 |  |  | S ≤0.06 · P ≤0.06 · Se ≥0.15 |
| AISI 422 | S42200 | 0.2-0.25 | ≤1.0 | ≤1.0 | 11.0-13.0 | 0.4-1.0 | 0.75-1.25 | S ≤0.03 · P ≤0.04 · W 0.75-1.25 · V 0.2-0.5 |
| [AISI 431](https://www.laxconsteels.com/grades/aisi-431/) | EN 1.4057 · S43100 · SUS 431 | ≤0.2 | ≤1.0 | ≤1.0 | 15.0-17.0 | 1.25-2.5 |  | S ≤0.03 · P ≤0.04 |
| AISI 440 A | S44002 | 0.6-0.75 | ≤1.0 | ≤1.0 | 16.0-18.0 |  | ≤0.75 | S ≤0.03 · P ≤0.04 |
| AISI 440 B | S44003 | 0.75-0.95 | ≤1.0 | ≤1.0 | 16.0-18.0 |  | ≤0.75 | S ≤0.03 · P ≤0.04 |
| AISI 440 C | S44004 | 0.95-1.2 | ≤1.0 | ≤1.0 | 16.0-18.0 |  | ≤0.75 | S ≤0.03 · P ≤0.04 |
| AISI 440 F |  | 0.95-1.2 | ≤1.25 | ≤1.0 | 16.0-18.0 |  |  | S ≥0.15 · P ≤0.06 · Zr+Mo ≤0.75 |
| AISI 440 F Se |  | 0.95-1.2 | ≤1.25 | ≤1.0 | 16.0-18.0 |  |  | S ≤0.06 · P ≤0.06 · Se ≥0.15 |
| AISI 501 | S50100 | ≥0.1 | ≤1.0 | ≤1.0 | 4.0-6.0 |  | 0.4-0.65 | S ≤0.03 · P ≤0.04 |
| DIN 1.4021 | S42000 · SUS 420J1 · 420 | 0.17-0.22 | ≤1.0 | ≤1.0 | 12.0-14.0 |  |  | S ≤0.03 · P ≤0.045 |
| DIN 1.4028 | SUS 420J2 · 420B | 0.26-0.35 | ≤1.5 | ≤1.0 | 12.0-14.0 |  |  | S ≤0.015 · P ≤0.04 |
| DIN 1.4034 |  | 0.43-0.5 | ≤1.0 | ≤1.0 | 12.5-14.5 |  |  | S ≤0.015 · P ≤0.04 |
| DIN 1.4057 | S43100 · SUS 431 · 431 | 0.12-0.22 | ≤1.5 | ≤1.0 | 15.0-17.0 | 1.5-2.5 |  | S ≤0.03 · P ≤0.04 |
| DIN 1.4104 |  | 0.1-0.17 | ≤1.25 | ≤1.0 | 16.0-18.0 |  | 0.2-0.6 | S 0.15-0.35 · P ≤0.04 |
| DIN 1.4122 |  | 0.33-0.45 | ≤1.5 | ≤1.0 | 15.5-17.5 | ≤1.0 | 0.8-1.3 | S ≤0.015 · P ≤0.04 |
| DIN 1.4418 |  | ≤0.06 | ≤1.5 | ≤0.7 | 15.0-17.0 | 4.0-6.0 | 0.8-1.5 | S ≤0.015 · P ≤0.04 · N ≤0.02 |
| DIN 1.2316 |  | 0.33-0.45 | ≤2.0 | ≤1.0 | 15.5-17.5 | ≤1.0 | 0.8-1.3 | S ≤0.03 · P ≤0.03 |
| EN 56 A |  | ≤0.12 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.045 · P ≤0.045 |
| EN 56 B |  | 0.12-0.18 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.045 · P ≤0.045 |
| EN 56 C |  | 0.18-0.25 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.045 · P ≤0.045 |
| EN 56 D |  | 0.25-0.35 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.045 · P ≤0.045 |
| EN 56 AM |  | ≤0.12 | ≤1.5 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.75 · P ≤0.045 · Se ≤0.6 · Zr ≤0.6 · Pb ≤0.35 |
| EN 56 BM |  | 0.12-0.18 | ≤1.5 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.75 · P ≤0.045 · Se ≤0.6 · Zr ≤0.6 · Pb ≤0.35 |
| EN 56 CM |  | 0.18-0.25 | ≤1.5 | ≤1.0 | 12.0-14.0 | ≤1.0 |  | S ≤0.75 · P ≤0.045 · Se ≤0.6 · Zr ≤0.6 · Pb ≤0.35 |
| EN 57 |  | ≤0.25 | ≤1.0 | 0.1-1.0 | 15.5-20.0 | 1.0-3.0 |  | S ≤0.045 · P ≤0.045 |
| F - 6 |  | ≤0.15 | ≤1.0 | ≤1.0 | 11.5-13.5 |  |  | S ≤0.035 · P ≤0.035 |
| F - 6NM | EN 1.4313 | ≤0.05 | 0.5-1.0 | ≤0.6 | 11.5-14.0 | 3.5-5.5 | 0.5-1.0 | S ≤0.03 · P ≤0.03 |
| F - 6A |  | ≤0.15 | ≤1.0 | ≤1.0 | 11.5-13.5 | ≤0.5 |  | S ≤0.03 · P ≤0.04 |
| SUS 420J1 | EN 1.4021 · S42000 · 420 | 0.16-0.25 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤0.6 |  | S ≤0.03 · P ≤0.04 Japanese designation per JIS G4303 |
| SUS 420J2 | EN 1.4028 · 420B | 0.26-0.4 | ≤1.0 | ≤1.0 | 12.0-14.0 | ≤0.6 |  | S ≤0.03 · P ≤0.04 Japanese designation per JIS G4303, widely used for cutlery |
| DIN 1.4313 | F 6NM | ≤0.05 | ≤1.5 | ≤0.7 | 12.0-14.0 | 3.5-4.5 | 0.3-0.7 | S ≤0.015 · P ≤0.04 · N ≥0.02 Soft martensitic 13-4 grade per EN 10088-3, wrought counterpart of CA6NM |
| DIN 1.4116 |  | 0.45-0.55 | ≤1.0 | ≤1.0 | 14.0-15.0 |  | 0.5-0.8 | S ≤0.015 · P ≤0.04 · V 0.1-0.2 Knife steel X50CrMoV15 per EN 10088 |
| 12Kh13 |  | 0.09-0.15 | ≤0.8 | ≤0.8 | 12.0-14.0 |  |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632, close to AISI 410 |
| 20Kh13 |  | 0.16-0.25 | ≤0.8 | ≤0.8 | 12.0-14.0 |  |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632, close to AISI 420 |
| 30Kh13 |  | 0.26-0.35 | ≤0.8 | ≤0.8 | 12.0-14.0 |  |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632 |
| 40Kh13 |  | 0.36-0.45 | ≤0.8 | ≤0.8 | 12.0-14.0 |  |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632 |
| 14Kh17N2 |  | 0.11-0.17 | ≤0.8 | ≤0.8 | 16.0-18.0 | 1.5-2.5 |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632, close to AISI 431 |
| 95Kh18 |  | 0.9-1.0 | ≤0.8 | ≤0.8 | 17.0-19.0 |  |  | S ≤0.025 · P ≤0.03 Russian bearing and knife grade per GOST 5632, close to AISI 440B |
| XM 6 / S41610 | S41610 | ≤0.15 | 1.5-2.5 | ≤1.0 | 12.0-14.0 |  |  | P ≤0.06 · S ≥0.15 Free-machining martensitic bar grade, UNS S41610, per ASTM A582 Table 1. |

## Ferritic

*26* grades

Ferritic grades keep a body-centred cubic structure from room temperature to melting, with 11 to 30 percent chromium and little or no nickel. They are magnetic, cheaper than austenitics because they carry no nickel, and more resistant to chloride stress corrosion cracking, but they are less tough and harder to weld in thick sections. They are used for automotive exhaust systems and trim, heat exchangers, domestic appliances and architectural panels.

[Ferritic grades in detail](https://www.laxconsteels.com/grades/ferritic/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | N % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| AISI 405 | EN 1.4002 · S40500 · SUS 405 | ≤0.08 | ≤1.0 | ≤1.0 | 11.5-14.5 | ≤0.5 |  |  | S ≤0.03 · P ≤0.04 · Al 0.1-0.3 |
| AISI 409 | EN 1.4512 · S40900 · SUS 409 | ≤0.03 | ≤1.0 | ≤1.0 | 10.5-11.75 | ≤0.5 |  | ≤0.03 | S ≤0.02 · P ≤0.04 · Ti ≤0.5 Ti minimum 6x(C+N) per ASTM A240 (S40910), maximum 0.50 |
| AISI 429 | S42900 | ≤0.12 | ≤1.0 | ≤0.75 | 14.0-16.0 | ≤0.5 |  |  | S ≤0.03 · P ≤0.04 |
| [AISI 430](https://www.laxconsteels.com/grades/aisi-430/) | EN 1.4016 · S43000 · SUS 430 | ≤0.12 | ≤1.0 | ≤1.0 | 16.0-18.0 |  |  |  | S ≤0.03 · P ≤0.04 |
| AISI 430 F | S43020 · SUS 430F | ≤0.12 | ≤1.25 | ≤1.0 | 16.0-18.0 | ≤0.5 | ≤0.6 |  | S ≥0.15 · P ≤0.06 |
| AISI 430 F Se | S43023 | ≤0.12 | ≤1.25 | ≤1.0 | 16.0-18.0 |  |  |  | S ≤0.06 · P ≤0.06 · Se ≥0.15 |
| AISI 434 | EN 1.4113 · S43400 · SUS 434 | ≤0.12 | ≤1.0 | ≤1.0 | 16.0-18.0 |  | 0.75-1.25 |  | S ≤0.03 · P ≤0.04 |
| AISI 436 | S43600 | ≤0.12 | ≤1.0 | ≤1.0 | 16.0-18.0 |  | 0.75-1.25 |  | S ≤0.03 · P ≤0.04 · Nb ≤0.8 Nb minimum 5xC per ASTM A240, maximum 0.80 |
| AISI 442 | S44200 | ≤0.2 | ≤1.0 | ≤1.0 | 18.0-23.0 |  |  |  | S ≤0.03 · P ≤0.04 |
| AISI 446 | S44600 | ≤0.2 | ≤1.5 | ≤1.0 | 23.0-27.0 | ≤0.75 |  | ≤0.25 | S ≤0.03 · P ≤0.04 |
| DIN 1.4000 | SUS 403 · 403 | ≤0.08 | ≤1.0 | ≤1.0 | 12.0-14.0 |  |  |  | S ≤0.03 · P ≤0.045 |
| DIN 1.4016 | S43000 · SUS 430 · 430 | ≤0.08 | ≤1.0 | ≤1.0 | 16.0-18.0 |  |  |  | S ≤0.03 · P ≤0.04 |
| DIN 1.4512 | S40910 · 409 | ≤0.08 | ≤1.0 | ≤1.0 | 10.5-12.5 |  |  |  | S ≤0.03 · P ≤0.045 · Ti ≤0.65 Ti minimum 6x(C+N) per EN 10088-2, maximum 0.65 |
| DIN 1.4713 |  | ≤0.12 | ≤1.0 | 0.5-1.0 | 6.0-8.0 |  |  |  | S ≤0.015 · P ≤0.04 · Al 0.5-1.0 |
| AISI 410 S |  | ≤0.08 | ≤1.0 | ≤1.0 | 11.5-13.5 | ≤0.6 |  |  | S ≤0.03 · P ≤0.04 Non hardening low carbon modification of 410 per ASTM A240 (UNS S41008) |
| AISI 439 | EN 1.4510 · S43035 | ≤0.03 | ≤1.0 | ≤1.0 | 17.0-19.0 | ≤0.5 |  | ≤0.03 | S ≤0.03 · P ≤0.04 · Ti ≤1.1 · Al ≤0.15 Ti minimum 0.20+4x(C+N) per ASTM A240, maximum 1.10 (UNS S43035) |
| AISI 441 | EN 1.4509 · S43940 | ≤0.03 | ≤1.0 | ≤1.0 | 17.0-19.0 | ≤0.5 |  | ≤0.03 | S ≤0.03 · P ≤0.04 · Ti+Nb ≤0.75 · Al ≤0.15 Ti+Nb combined minimum 0.20+4x(C+N) per ASTM A240, maximum 0.75 (UNS S43932, EN 1.4509 type) |
| AISI 444 | EN 1.4521 · S44400 | ≤0.025 | ≤1.0 | ≤1.0 | 17.5-19.5 | ≤1.0 | 1.75-2.5 | ≤0.035 | S ≤0.03 · P ≤0.04 · Ti+Nb ≤0.8 Ti+Nb combined minimum 0.20+4x(C+N) per ASTM A240, maximum 0.80 (UNS S44400) |
| 3CR12 / 1.4003 | EN 1.4003 · S41003 / S40977 | ≤0.03 | ≤1.5 | ≤1.0 | 10.5-12.5 | ≤1.5 |  | ≤0.03 | S ≤0.03 · P ≤0.04 Utility ferritic per ASTM A240 (UNS S41003); EN 10088 1.4003 narrows Ni to 0.30-1.00 |
| 08Kh17T |  | ≤0.08 | ≤0.8 | ≤0.8 | 16.0-18.0 |  |  |  | S ≤0.025 · P ≤0.035 · Ti ≤0.8 Ti minimum 5xC per GOST 5632; close to AISI 430Ti |
| 08Kh13 |  | ≤0.08 | ≤0.8 | ≤0.8 | 12.0-14.0 |  |  |  | S ≤0.025 · P ≤0.03 Russian grade per GOST 5632, close to AISI 410S |
| XM 27 / S44627 | S44627 | ≤0.01 | ≤0.4 | ≤0.4 | 25.0-27.5 | ≤0.5 | 0.75-1.5 | ≤0.015 | P ≤0.02 · S ≤0.02 · Cu ≤0.2 · Nb 0.05-0.2 · Ni+Cu ≤0.5 Super-ferritic 26-1 grade, UNS S44627, per ASTM A240 Table 1. |
| S 44660 | S44660 | ≤0.03 | ≤1.0 | ≤1.0 | 25.0-28.0 | 1.0-3.5 | 3.0-4.0 | ≤0.04 | P ≤0.04 · S ≤0.03 · Ti+Nb 0.2-1.0 Super-ferritic 26-3-3 grade, UNS S44660, per ASTM A240 Table 1. Titanium plus niobium minimum 6x(C+N), maximum 1.00. |
| S 44735 | S44735 | ≤0.03 | ≤1.0 | ≤1.0 | 28.0-30.0 | ≤1.0 | 3.6-4.2 | ≤0.045 | P ≤0.04 · S ≤0.03 · Ti+Nb 0.2-1.0 Super-ferritic 29-4C grade, UNS S44735, per ASTM A240 Table 1. Titanium plus niobium minimum 6x(C+N), maximum 1.00. |
| S 44700 | S44700 | ≤0.01 | ≤0.3 | ≤0.2 | 28.0-30.0 | ≤0.15 | 3.5-4.2 | ≤0.02 | P ≤0.025 · S ≤0.02 · Cu ≤0.15 · C+N ≤0.025 Super-ferritic 29-4 grade, UNS S44700, per ASTM A240 Table 1. |
| S 41603 | S41603 | ≤0.08 | ≤1.25 | ≤1.0 | 12.0-14.0 |  |  |  | P ≤0.06 · S ≥0.15 Free-machining low-carbon 13 percent chromium bar grade, UNS S41603, per ASTM A582 Table 1, where it is grouped as ferritic. |

## Nickel Alloy

*50* grades

Nickel alloys are built on nickel rather than iron, with chromium, molybdenum, cobalt, niobium and titanium added for corrosion resistance and high-temperature strength. The austenitic matrix stays stable far above the range where steels lose strength, and many grades are strengthened further by gamma-prime precipitation. They serve gas turbine and aero-engine parts, heat exchangers, furnace hardware and chemical or marine plant handling acids and chlorides.

[Nickel Alloy grades in detail](https://www.laxconsteels.com/grades/nickel-alloy/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Cr % | Ni % | Cu % | Ti % | Al % | Fe % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Incoloy 800 | N08800 | 0.1 |  | 20.5 | 32.0 |  | 0.4 | 0.4 | 46.0 |  |
| Incoloy 801 |  |  |  | 20.5 | 32.0 |  | 1.1 |  | 45.0 |  |
| Incoloy 802 |  | 0.35 |  | 21.0 | 32.5 |  | 0.75 | 0.6 | 45.0 |  |
| Incoloy 825 / Alloy 825 | N08825 · 2.4858 | ≤0.05 | ≤1.0 | 19.5-23.5 | 38.0-46.0 | 1.5-3.0 | 0.6-1.2 | ≤0.2 | ≥22.0 | Mo 2.5-3.5 · S ≤0.03 · Si ≤0.5 Nickel-iron-chromium alloy, UNS N08825, per ASTM B424 and B425. Sold as Alloy 825 and Incoloy 825. |
| Incoloy 840 |  | 0.03 |  | 19.0 | 21.0 |  |  |  | 58.0 |  |
| Incoloy 901 / Inconel 901 |  | ≤0.1 |  | 12.5 | 42.5 | ≤0.5 | 2.7 | ≤0.35 | 34.0 | Mo 6.0 Nickel-iron-chromium superalloy, UNS N09901. Sold as Alloy 901, Incoloy 901, Inconel 901 and Nimonic 901. |
| [Inconel 600](https://www.laxconsteels.com/grades/inconel-600/) | N06600 · 2.4816 | 0.04 |  | 15.5 | 75.5 | 0.1 |  |  | 8.0 |  |
| Inconel 601 | N06601 · 2.4851 | ≤0.1 |  | 23.0 | 60.5 | 0.5 |  | 1.35 | 14.0 |  |
| Inconel 617 | N06617 · 2.4663 | 0.07 |  | 22.0 | 54.0 |  |  | 1.0 | ≤3.0 | Co 12.5 · Mo 9.0 |
| [Inconel 625](https://www.laxconsteels.com/grades/inconel-625/) | N06625 | 0.05 |  | 20.5 | 61.0 |  |  |  | 2.5 | Mo 9.0 · Nb+Ta 3.15-4.15 |
| Inconel 700 |  | ≤0.12 |  | 15.0 | 46.0 |  | 2.2 | 3.0 | 0.7 | Co 28.5 · Mo 3.75 |
| Inconel 702 |  | 0.05 |  | 16.0 | 79.5 | 0.25 | 0.5 | 3.5 | 1.0 |  |
| Inconel 713 |  | 0.12 |  | 13.4 | 71.0 |  | 1.0 | 6.2 | 2.5 | Co 1.0 · Mo 4.5 |
| Inconel 713LC |  | 0.03-0.07 |  | 13.0 | 72.0 |  | 0.6 | 6.0 | 1.0 | Mo 4.5 · Cb 2.25 |
| Inconel 718 | N07718 · 2.4668 | ≤0.08 |  | 19.0 | 52.5 | 0.15 | 0.9 | 0.2-0.8 | 18.5 | Mo 3.05 · Cb+Ta 5.13 |
| Inconel 721 |  |  | ≤2.25 | 16.0 | 71.0 | 0.1 | 3.5 |  | 7.0 |  |
| Inconel 722 |  | ≤0.08 |  | 15.5 | 75.0 | 0.05 | 2.4 | 0.7 | 7.0 |  |
| Inconel 738 |  | 0.17 |  | 16.0 | 61.0 |  | 3.4 | 3.4 |  | Co 8.5 · Mo 1.7 · W 2.6 · Cb 1.9 · Ta 1.7 |
| Inconel 750 |  | 0.04 |  | 15.5 | 73.0 | 0.5 | 2.5 | 0.7 | 7.0 | Cb+Ta 0.95 |
| Inconel 751 |  | 0.05 |  | 15.5 | 72.5 | 0.5 | 2.5 | 1.2 | 7.0 | Cb+Ta 1.0 |
| Invar 36 |  | ≤0.1 |  |  | 36.0 |  |  |  |  |  |
| [Monel 400 (R)](https://www.laxconsteels.com/grades/monel-400/) |  | ≤0.3 | ≤2.0 |  | ≥63.0 | 28.0-34.0 |  |  | ≤2.5 | S ≤0.024 · Si ≤0.5 Limiting composition for UNS N04400. The nickel minimum includes cobalt and is determined by difference. |
| Monel 404 |  | 0.06 |  |  | 54.4 | 44.0 |  | 0.03 | 0.05 |  |
| Monel R405 |  | 0.18 | ≤1.0 |  | 66.0 | 31.5 |  |  | 1.35 | S 0.025-0.06 |
| Monel K500 |  | ≤0.18 | ≤1.5 |  | ≥63.0 | 27.0-33.0 | 0.35-0.85 | 2.3-3.15 | ≤2.0 | S ≤0.01 · Si ≤0.5 Limiting composition for UNS N05500 per ASTM B865. The alloy originator's own datasheet states carbon 0.25 maximum instead of 0.18. |
| Monel 505(S) |  |  | ≤0.8 |  | 64.0 | 29.0 |  |  | 2.0 | Si ≤4.0 |
| Monel 506(H) |  | 0.1 |  |  | 64.0 | 30.0 |  |  | 1.5 | Si ≤3.2 |
| Nichrome |  |  |  | 15.0 | 60.0 |  |  |  |  |  |
| Nichrome V |  |  |  | 20.0 | 79.0 |  |  |  |  |  |
| Hastelloy C-276 |  | ≤0.01 | ≤1.0 | 14.5-16.5 |  |  |  |  | 4.0-7.0 | S ≤0.03 · P ≤0.04 · Si ≤0.08 · Mo 15.0-17.0 · W 3.0-4.5 · Co ≤2.5 · V ≤0.35 Nickel balance per ASTM B575 (UNS N10276) |
| Hastelloy C-22 |  | ≤0.015 | ≤0.5 | 20.0-22.5 |  |  |  |  | 2.0-6.0 | S ≤0.02 · P ≤0.02 · Si ≤0.08 · Mo 12.5-14.5 · W 2.5-3.5 · Co ≤2.5 · V ≤0.35 Nickel balance per ASTM B575 (UNS N06022) |
| Nickel 200 |  | ≤0.15 | ≤0.35 |  | ≥99.0 | ≤0.25 |  |  | ≤0.4 | S ≤0.01 · Si ≤0.35 Commercially pure nickel per ASTM B160 (UNS N02200) |
| Nickel 201 |  | ≤0.02 | ≤0.35 |  | ≥99.0 | ≤0.25 |  |  | ≤0.4 | S ≤0.01 · Si ≤0.35 Low carbon pure nickel per ASTM B160 (UNS N02201) |
| Incoloy 800H | N08810 | 0.05-0.1 |  | 19.0-23.0 | 30.0-35.0 |  | 0.15-0.6 | 0.15-0.6 | ≥39.5 | Controlled carbon version of alloy 800 per ASTM B409 (UNS N08810) |
| Incoloy 800HT | N08811 | 0.06-0.1 |  | 19.0-23.0 | 30.0-35.0 |  | 0.25-0.6 | 0.25-0.6 | ≥39.5 | Al+Ti 0.85-1.2 High temperature variant per ASTM B409 (UNS N08811); Al+Ti combined 0.85 to 1.20 |
| Hastelloy B-2 |  | ≤0.02 | ≤1.0 | ≤1.0 |  |  |  |  | ≤2.0 | P ≤0.04 · S ≤0.03 · Si ≤0.1 · Mo 26.0-30.0 · Co ≤1.0 Nickel balance per ASTM B333 (UNS N10665). |
| Hastelloy B-3 |  | ≤0.01 | ≤3.0 | 1.0-3.0 | ≥65.0 | ≤0.2 | ≤0.2 | ≤0.5 | 1.0-3.0 | P ≤0.03 · S ≤0.01 · Si ≤0.1 · Mo 27.0-32.0 · Co ≤3.0 · W ≤3.0 · V ≤0.2 · Nb ≤0.2 · Ta ≤0.2 · Zr ≤0.1 ASTM B333 (UNS N10675). Nickel plus molybdenum 94.0 to 98.0. |
| Hastelloy C-4 |  | ≤0.015 | ≤1.0 | 14.0-18.0 |  |  | ≤0.7 |  | ≤3.0 | P ≤0.04 · S ≤0.03 · Si ≤0.08 · Mo 14.0-17.0 · Co ≤2.0 Nickel balance per ASTM B575 (UNS N06455). |
| Hastelloy X |  | 0.05-0.15 | ≤1.0 | 20.5-23.0 |  |  | ≤0.15 | ≤0.5 | 17.0-20.0 | P ≤0.04 · S ≤0.03 · Si ≤1.0 · Mo 8.0-10.0 · Co 0.5-2.5 · W 0.2-1.0 Nickel balance, UNS N06002. Published limits for boron, niobium and copper differ between sources and are not stated here. |
| Hastelloy G-30 |  | ≤0.03 | ≤1.5 | 28.0-31.5 |  | 1.0-2.4 |  |  | 13.0-17.0 | P ≤0.04 · S ≤0.02 · Si ≤0.8 · Mo 4.0-6.0 · Co ≤5.0 · W 1.5-4.0 · Nb+Ta 0.3-1.5 Nickel balance per ASTM B582 (UNS N06030). |
| Alloy 59 / N06059 | N06059 | ≤0.01 | ≤0.5 | 22.0-24.0 |  | ≤0.5 |  | 0.1-0.4 | ≤1.5 | P ≤0.015 · S ≤0.01 · Si ≤0.1 · Mo 15.0-16.5 · Co ≤0.3 Nickel balance per ASTM B575 (UNS N06059). |
| Alloy 686 / N06686 | N06686 | ≤0.01 | ≤0.75 | 19.0-23.0 |  |  | 0.02-0.25 |  | ≤5.0 | P ≤0.04 · S ≤0.02 · Si ≤0.08 · Mo 15.0-17.0 · W 3.0-4.4 Nickel balance per ASTM B575 (UNS N06686). |
| Inconel 690 | N06690 · 2.4642 | ≤0.05 | ≤0.5 | 27.0-31.0 | ≥58.0 | ≤0.5 |  |  | 7.0-11.0 | S ≤0.015 · Si ≤0.5 Limiting composition for UNS N06690 as published by the alloy originator. |
| Inconel X-750 | N07750 · 2.4669 | ≤0.08 | ≤1.0 | 14.0-17.0 | ≥70.0 | ≤0.5 | 2.25-2.75 | 0.4-1.0 | 5.0-9.0 | S ≤0.01 · Si ≤0.5 · Nb+Ta 0.7-1.2 · Co ≤1.0 Limiting composition for UNS N07750. The nickel minimum includes cobalt. The catalogue also carries a nominal Inconel 750 entry. |
| Incoloy 925 | N09925 | ≤0.03 | ≤1.0 | 19.5-22.5 | 42.0-46.0 | 1.5-3.0 | 1.9-2.4 | 0.1-0.5 | ≥22.0 | S ≤0.03 · Si ≤0.5 · Mo 2.5-3.5 · Nb ≤0.5 Limiting composition for UNS N09925 as published by the alloy originator. Oilfield specifications tighten several of these limits. |
| Nimonic 75 |  | 0.08-0.15 | ≤1.0 | 18.0-21.0 |  | ≤0.5 | 0.2-0.6 |  | ≤5.0 | Si ≤1.0 Nickel balance. Limiting composition as in BS HR 203, UNS N06075. |
| Nimonic 80A |  | ≤0.1 | ≤1.0 | 18.0-21.0 |  | ≤0.2 | 1.8-2.7 | 1.0-1.8 | ≤3.0 | S ≤0.015 · Si ≤1.0 · Co ≤2.0 · B ≤0.008 · Zr ≤0.15 · Pb ≤0.0025 Nickel balance. Limiting composition as in BS HR 1, 201, 401 and 601, UNS N07080. |
| Nimonic 90 |  | ≤0.13 | ≤1.0 | 18.0-21.0 |  | ≤0.2 | 2.0-3.0 | 1.0-2.0 | ≤1.5 | S ≤0.015 · Si ≤1.0 · Co 15.0-21.0 · B ≤0.02 · Zr ≤0.15 · Pb ≤0.002 Nickel balance, UNS N07090. |
| Nimonic 263 |  | 0.04-0.08 | ≤0.6 | 19.0-21.0 |  | ≤0.2 | 1.9-2.4 | ≤0.6 | ≤0.7 | S ≤0.007 · Si ≤0.4 · Co 19.0-21.0 · Mo 5.6-6.1 · Al+Ti 2.4-2.8 · B ≤0.005 Nickel balance. Composition as in BS HR 10, UNS N07263. |
| Waspaloy |  | 0.02-0.1 | ≤1.0 | 18.0-21.0 |  | ≤0.5 | 2.75-3.25 | 1.2-1.6 | ≤2.0 | P ≤0.03 · S ≤0.03 · Si ≤0.75 · Mo 3.5-5.0 · Co 12.0-15.0 · B 0.003-0.01 · Zr 0.02-0.12 Nickel balance. Limiting composition in compliance with UNS N07001. |

## Tool Steel

*88* grades

Tool steels are high-carbon grades alloyed with chromium, molybdenum, tungsten, vanadium and sometimes cobalt, so that hard carbides form and survive the temperatures of cutting and forming. The AISI letter groups separate them by service: W water-hardening, O oil-hardening, A air-hardening, D high-carbon high-chromium, S shock-resisting, H hot work, and M and T high speed. They are made into cutting tools, dies, punches, moulds, shear blades and rolls.

[Tool Steel grades in detail](https://www.laxconsteels.com/grades/tool-steel/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Mo % | V % | W % | Co % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Maraging 250 |  | 0.03 |  |  |  | 4.7 |  |  | 7.5 | Ni 18.0 · Ti 0.4 · Al 0.1 |
| Maraging 300 |  | 0.03 |  |  |  | 4.8 |  |  | 8.75 | Ni 18.5 · Ti 0.6 · Al 0.1 |
| AISI D - 1 |  | 0.9-1.0 | 0.3-0.5 | 0.3-0.5 | 11.0-13.0 | ≤1.0 |  |  |  | S ≤0.03 · P ≤0.03 |
| AISI D - 2 |  | 1.4-1.6 | 0.2-0.6 | 0.1-0.6 | 11.0-13.0 | 0.7-1.2 | 0.5-1.1 |  | ≤1.0 | S ≤0.03 · P ≤0.03 |
| AISI D - 3 |  | 2.0-2.35 | 0.2-0.6 | 0.1-0.6 | 11.0-13.5 |  | ≤1.0 | ≤1.0 |  | S ≤0.03 · P ≤0.03 |
| AISI D - 4 |  | 2.05-2.4 | 0.1-0.6 | 0.1-0.6 | 11.0-13.0 | 0.7-1.2 | 0.15-1.0 |  |  | S ≤0.03 · P ≤0.03 |
| AISI D - 5 |  | 1.4-1.6 | 0.2-0.6 | 0.1-0.6 | 11.0-13.0 | 0.7-1.2 | ≤1.0 |  | 2.5-3.5 | S ≤0.03 · P ≤0.03 |
| AISI D - 7 |  | 2.15-2.5 | 0.1-0.6 | 0.1-0.6 | 11.5-13.5 | 0.7-1.2 | 3.8-4.4 |  |  | S ≤0.03 · P ≤0.03 |
| AISI A - 2 |  | 0.95-1.05 | 0.4-1.0 | 0.1-0.5 | 4.75-5.5 | 0.9-1.4 | 0.15-0.5 |  |  | S ≤0.03 · P ≤0.03 · Ni+Cu ≤0.75 |
| AISI A - 3 |  | 1.2-1.3 | 0.4-0.6 | 0.1-0.5 | 4.75-5.5 | 0.9-1.4 | 0.8-1.4 |  |  | S ≤0.03 · P ≤0.03 |
| AISI A - 4 |  | 0.95-1.05 | 1.8-2.2 | 0.1-0.5 | 0.9-2.2 | 0.9-1.4 |  |  |  | S ≤0.03 · P ≤0.03 |
| AISI A - 5 |  | 0.95-1.05 | 2.8-3.2 | 0.1-0.5 | 0.9-1.2 | 0.9-1.4 |  |  |  | S ≤0.03 · P ≤0.03 |
| AISI A - 6 |  | 0.65-0.75 | 1.8-2.5 | 0.2-0.5 | 0.9-1.2 | 0.9-1.4 |  |  |  | S ≤0.03 · P ≤0.03 |
| AISI A - 7 |  | 2.0-2.85 | 0.2-0.8 | 0.1-0.5 | 5.0-5.75 | 0.9-1.4 | 3.9-5.15 | 0.5-1.5 |  | S ≤0.03 · P ≤0.03 |
| AISI A - 8 |  | 0.5-0.6 | 0.2-0.5 | 0.75-1.1 | 4.75-5.5 | 1.15-1.65 |  | 1.0-1.5 |  | S ≤0.03 · P ≤0.03 |
| AISI A - 9 |  | 0.45-0.55 | 0.2-0.5 | 0.95-1.15 | 4.75-5.5 | 1.3-1.8 | 0.8-1.4 |  |  | S ≤0.03 · P ≤0.03 · Ni 1.25-1.75 |
| AISI A - 10 |  | 1.25-1.5 | 1.6-2.1 | 1.0-1.5 |  | 1.25-1.75 |  |  |  | S ≤0.03 · P ≤0.03 · Ni 1.55-2.05 |
| AISI O1 |  | 0.85-1.0 | 1.0-1.4 | 0.1-0.5 | 0.4-0.6 |  | ≤0.3 | 0.4-0.6 |  | S ≤0.03 · P ≤0.03 |
| AISI O2 / SAE O2 |  | 0.85-0.95 | 1.4-1.8 | ≤0.5 | ≤0.5 | ≤0.3 | 0.1-0.3 |  |  | S ≤0.03 · P ≤0.03 Oil-hardening cold-work tool steel. Filed as a tool steel, not an alloy steel. |
| AISI O6 |  | 1.25-1.55 | 0.3-1.1 | 0.55-1.5 | ≤0.3 | 0.2-0.3 |  |  |  | S ≤0.03 · P ≤0.03 |
| AISI O7 |  | 1.1-1.3 | 0.2-1.0 | 0.1-0.6 | 0.35-0.85 | ≤0.3 | 0.15-0.4 | 1.0-2.0 |  | S ≤0.03 · P ≤0.03 |
| T 70-71 |  | 0.55-0.6 | 0.7-0.8 | 0.15-0.3 |  |  |  |  |  | S ≤0.045 · P ≤0.045 |
| H 10 |  | 0.35-0.45 | 0.25-0.7 | 0.8-1.2 | 3.0-3.75 | 2.0-3.0 | 0.25-0.75 |  |  | S ≤0.03 · P ≤0.03 |
| H 11 | X37CrMoV5-1 · 1.2343 | 0.33-0.43 | 0.2-0.5 | 0.8-1.2 | 4.75-5.5 | 1.1-1.6 | 0.3-0.6 |  |  | S ≤0.03 · P ≤0.03 |
| H 12 | X35CrWMoV5-1 · 1.2605 | 0.3-0.4 | 0.2-0.5 | 0.8-1.2 | 4.75-5.5 | 1.25-1.75 | 0.2-0.5 | 1.0-1.7 |  | S ≤0.03 · P ≤0.03 |
| H 13 | X40CrMoV5-1 · 1.2344 | 0.32-0.45 | 0.2-0.5 | 0.8-1.2 | 4.75-5.5 | 1.1-1.75 | 0.8-1.2 |  |  | S ≤0.03 · P ≤0.03 |
| H 14 |  | 0.35-0.45 | 0.2-0.5 | 0.8-1.2 | 4.75-5.5 |  |  | 4.0-5.25 |  | S ≤0.03 · P ≤0.03 |
| H 16 |  | 0.55 | 0.2-0.4 | 0.2-0.4 | 7.0 |  |  | 7.0 |  | S ≤0.03 · P ≤0.03 |
| H 19 |  | 0.32-0.45 | 0.2-0.5 | 0.2-0.5 | 4.0-4.75 | 0.3-0.55 | 1.75-2.2 | 3.75-4.5 | 4.0-4.5 | S ≤0.03 · P ≤0.03 |
| H 20 |  | 0.3-0.4 | 0.2-0.4 | 0.2-0.4 | 2.0 |  |  | 9.0 |  | S ≤0.03 · P ≤0.03 |
| H 21 |  | 0.26-0.36 | 0.15-0.4 | 0.15-0.5 | 3.0-3.75 |  | 0.3-0.6 | 8.5-10.0 |  | S ≤0.03 · P ≤0.03 |
| H 22 |  | 0.3-0.4 | 0.15-0.4 | 0.15-0.4 | 1.75-3.75 |  | 0.25-0.5 | 10.0-11.75 |  | S ≤0.03 · P ≤0.03 |
| H 23 |  | 0.25-0.35 | 0.15-0.4 | 0.15-0.6 | 11.0-12.75 |  | 0.75-1.25 | 10.0-12.75 |  | S ≤0.03 · P ≤0.03 |
| H 24 |  | 0.42-0.53 | 0.15-0.4 | 0.15-0.4 | 2.5-3.5 |  | 0.4-0.6 | 14.0-16.0 |  | S ≤0.03 · P ≤0.03 |
| H 25 |  | 0.22-0.32 | 0.15-0.4 | 0.15-0.4 | 3.75-4.5 |  | 0.4-0.6 | 14.0-16.0 |  | S ≤0.03 · P ≤0.03 |
| H 26 |  | 0.45-0.55 | 0.15-0.4 | 0.15-0.4 | 3.75-4.5 |  | 0.75-1.25 | 17.5-19.0 |  | S ≤0.03 · P ≤0.03 |
| H 41 |  | 0.6-0.75 | 0.15-0.4 | 0.2-0.45 | 3.5-4.0 | 8.2-9.2 | 1.0-1.3 | 1.4-2.1 |  | S ≤0.03 · P ≤0.03 |
| H 42 |  | 0.55-0.7 | 0.15-0.4 | 0.2-0.45 | 3.75-4.5 | 4.5-5.5 | 1.75-2.2 | 5.5-6.75 |  | S ≤0.03 · P ≤0.03 |
| H 43 |  | 0.5-0.65 | 0.15-0.4 | 0.2-0.45 | 3.75-4.5 | 7.75-8.5 | 1.8-2.2 |  |  | S ≤0.03 · P ≤0.03 |
| M 1 |  | 0.75-0.88 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 7.95-9.25 | 0.9-1.3 | 1.15-1.85 |  |  |
| M 2 |  | 0.78-0.88 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 4.5-5.5 | 1.6-2.2 | 5.5-6.75 |  |  |
| M 3 CL-1 |  | 1.0-1.1 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 4.75-6.25 | 2.25-3.25 | 5.5-6.75 |  |  |
| M 3 CL-2 |  | 1.15-1.25 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 4.75-6.25 | 2.75-3.25 | 5.0-6.75 |  | Ni+Cu ≤0.75 |
| M 4 |  | 1.25-1.4 | 0.2-0.4 | 0.2-0.4 | 4.0-4.75 | 4.5-5.5 | 3.9-4.5 | 5.25-6.5 |  |  |
| M 6 |  | 0.75-0.85 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 4.5-5.5 | 1.3-1.7 | 3.75-4.75 | 11.0-13.0 |  |
| M 7 |  | 0.97-1.05 | 0.2-0.4 | 0.2-0.55 | 3.5-4.0 | 8.2-9.2 | 1.75-2.25 | 1.4-2.1 |  |  |
| M 10 |  | 0.84-1.05 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 7.75-8.5 | 1.8-2.2 |  |  |  |
| M 15 |  | 1.5 | 0.2-0.4 | 0.2-0.4 | 4.0 | ≤8.5 | 5.0 | 6.5 | 5.0 |  |
| M 30 |  | 0.75-0.85 | 0.2-0.4 | 0.2-0.4 | 3.5-4.25 | 7.75-9.0 | 1.0-1.4 | 1.3-2.3 | 4.5-5.5 |  |
| M 33 |  | 0.85-0.92 | 0.2-0.4 | 0.2-0.4 | 3.5-4.0 | 9.0-10.0 | 1.0-1.35 | 1.3-2.1 | 7.75-8.75 |  |
| M 34 |  | 0.85-0.92 | 0.2-0.4 | 0.2-0.4 | 3.5-4.0 | 7.75-9.2 | 1.9-2.3 | 1.4-2.1 | 7.75-8.75 |  |
| M 35 |  | 0.82-0.88 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 4.5-5.5 | 1.75-2.2 | 5.5-6.75 | 4.5-5.5 |  |
| M 36 |  | 0.8-0.9 | 0.15-0.4 | 0.2-0.55 | 3.5-4.0 | 4.5-5.5 | 1.75-2.25 | 5.5-6.5 | 7.75-8.75 | Ni+Cu ≤0.75 |
| T 1 |  | 0.65-0.75 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 |  | 0.9-1.3 | 17.25-18.75 |  |  |
| T 2 |  | 0.75-0.8 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 0.7-1.0 | 1.8-2.4 | 17.5-19.0 |  |  |
| T 4 |  | 0.7-0.8 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 0.7-1.0 | 0.8-1.2 | 17.25-18.75 | 4.25-5.75 |  |
| T 5 |  | 0.75-0.85 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 0.7-1.0 | 1.8-2.4 | 17.5-19.0 | 7.0-9.0 |  |
| T 6 |  | 0.8 | 0.2-0.4 | 0.2-0.4 | 4.5 |  | 1.5 | 20.0 | 12.0 |  |
| T 7 |  | 0.75 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 |  | 1.8-2.4 | 13.25-14.75 |  |  |
| T 8 |  | 0.75-0.85 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 | 0.7-1.0 | 1.8-2.4 | 13.25-14.75 | 4.25-5.75 |  |
| T 9 |  | 1.2 | 0.2-0.4 | 0.2-0.4 | 3.75-4.5 |  | 4.0 | 18.0 |  |  |
| T 15 |  | 1.5 | 0.2-0.4 | 0.2-0.4 | 3.75-5.0 | ≤1.0 | 4.5-5.25 | 11.75-13.0 | 4.75-5.25 | Ni+Cu ≤0.75 |
| P 20 |  | 0.28-0.4 | 0.6-1.0 | 0.2-0.8 | 1.4-2.0 | 0.3-0.55 |  |  |  | S ≤0.03 · P ≤0.03 Plastic mould steel per ASTM A681; DIN 1.2311 (40CrMnMo7) is the closest European equivalent |
| S 1 |  | 0.4-0.55 | 0.1-0.4 | 0.15-1.2 | 1.0-1.8 |  | 0.15-0.3 | 1.5-3.0 |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Shock-resisting tool steel, UNS T41901, per ASTM A681 Table 1. |
| S 2 |  | 0.4-0.55 | 0.3-0.5 | 0.9-1.2 |  | 0.3-0.6 | ≤0.5 |  |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Shock-resisting tool steel, UNS T41902, per ASTM A681 Table 1. |
| S 5 |  | 0.5-0.65 | 0.6-1.0 | 1.75-2.25 | ≤0.5 | 0.2-1.35 | ≤0.35 |  |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Shock-resisting tool steel, UNS T41905, per ASTM A681 Table 1. |
| S 6 |  | 0.4-0.5 | 1.2-1.5 | 2.0-2.5 | 1.2-1.5 | 0.3-0.5 | 0.2-0.4 |  |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Shock-resisting tool steel, UNS T41906, per ASTM A681 Table 1. |
| S 7 |  | 0.45-0.55 | 0.2-0.9 | 0.2-1.0 | 3.0-3.5 | 1.3-1.8 | ≤0.35 |  |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Shock-resisting tool steel, UNS T41907, per ASTM A681 Table 1. Vanadium is an optional addition. |
| W 1 |  | 0.7-1.5 | 0.1-0.4 | 0.1-0.4 | ≤0.15 | ≤0.1 | ≤0.1 | ≤0.15 |  | P ≤0.03 · S ≤0.03 · Ni ≤0.2 · Cu ≤0.2 Water-hardening tool steel, UNS T72301, per ASTM A686 Table 1. Carbon is ordered as a narrower sub-range denoted by a suffix, for example W1-9.5 is 0.95 to 1.05. Grade C allows chromium to 0.30 maximum. |
| W 2 |  | 0.85-1.5 | 0.1-0.4 | 0.1-0.4 | ≤0.15 | ≤0.1 | 0.15-0.35 | ≤0.15 |  | P ≤0.03 · S ≤0.03 · Ni ≤0.2 · Cu ≤0.2 Water-hardening tool steel, UNS T72302, per ASTM A686 Table 1. Carbon is ordered as a narrower sub-range denoted by a suffix. Grade C allows chromium to 0.30 maximum. |
| W 5 |  | 1.05-1.15 | 0.1-0.4 | 0.1-0.4 | 0.4-0.6 | ≤0.1 | ≤0.1 | ≤0.15 |  | P ≤0.03 · S ≤0.03 · Ni ≤0.2 · Cu ≤0.2 Water-hardening tool steel, UNS T72305, per ASTM A686 Table 1. |
| L 2 |  | 0.45-1.0 | 0.1-0.9 | 0.1-0.5 | 0.7-1.2 | ≤0.25 | 0.1-0.3 |  |  | P ≤0.03 · S ≤0.03 · Ni+Cu ≤0.75 Low-alloy special purpose tool steel, UNS T61202, per ASTM A681 Table 1. Carbon is ordered as a narrower sub-range within 0.45 to 1.00. |
| L 6 |  | 0.65-0.75 | 0.25-0.8 | 0.1-0.5 | 0.6-1.2 | ≤0.5 |  |  |  | P ≤0.03 · S ≤0.03 · Ni 1.25-2.0 Low-alloy special purpose tool steel, UNS T61206, per ASTM A681 Table 1. Vanadium 0.20 to 0.30 is an optional addition and is not a requirement of the specification. |
| P 2 |  | ≤0.1 | 0.1-0.4 | 0.1-0.4 | 0.75-1.25 | 0.15-0.4 |  |  |  | P ≤0.03 · S ≤0.03 · Ni 0.1-0.5 Low-carbon mould steel, UNS T51602, per ASTM A681 Table 1. |
| P 3 |  | ≤0.1 | 0.2-0.6 | ≤0.4 | 0.4-0.75 |  |  |  |  | P ≤0.03 · S ≤0.03 · Ni 1.0-1.5 Low-carbon mould steel, UNS T51603, per ASTM A681 Table 1. |
| P 4 |  | ≤0.12 | 0.2-0.6 | 0.1-0.4 | 4.0-5.25 | 0.4-1.0 |  |  |  | P ≤0.03 · S ≤0.03 Low-carbon mould steel, UNS T51604, per ASTM A681 Table 1. |
| P 5 |  | 0.06-0.1 | 0.2-0.6 | ≤0.4 | 2.0-2.5 |  |  |  |  | P ≤0.03 · S ≤0.03 · Ni ≤0.35 Low-carbon mould steel, UNS T51605, per ASTM A681 Table 1. |
| P 6 |  | 0.05-0.15 | 0.35-0.7 | 0.1-0.4 | 1.25-1.75 |  |  |  |  | P ≤0.03 · S ≤0.03 · Ni 3.25-3.75 Low-carbon mould steel, UNS T51606, per ASTM A681 Table 1. |
| P 21 |  | 0.18-0.22 | 0.2-0.4 | 0.2-0.4 | 0.2-0.3 |  | 0.15-0.25 |  |  | P ≤0.03 · S ≤0.03 · Ni 3.9-4.25 · Al 1.05-1.25 Age-hardening mould steel, UNS T51621, per ASTM A681 Table 1. |
| M 41 |  | 1.05-1.15 | 0.2-0.6 | 0.15-0.5 | 3.75-4.5 | 3.25-4.25 | 1.75-2.25 | 6.25-7.0 | 4.75-5.75 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11341, per ASTM A600 Table 1. |
| M 42 |  | 1.05-1.15 | 0.15-0.4 | 0.15-0.65 | 3.5-4.25 | 9.0-10.0 | 0.95-1.35 | 1.15-1.85 | 7.75-8.75 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11342, per ASTM A600 Table 1. |
| M 43 |  | 1.15-1.25 | 0.2-0.4 | 0.15-0.65 | 3.5-4.25 | 7.5-8.5 | 1.5-1.75 | 2.25-3.0 | 7.75-8.75 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11343, per ASTM A600 Table 1. |
| M 44 |  | 1.1-1.2 | 0.2-0.4 | 0.3-0.55 | 4.0-4.75 | 6.0-7.0 | 1.85-2.2 | 5.0-5.75 | 11.0-12.25 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11344, per ASTM A600 Table 1. |
| M 46 |  | 1.22-1.3 | 0.2-0.4 | 0.4-0.65 | 3.7-4.2 | 8.0-8.5 | 3.0-3.3 | 1.9-2.2 | 7.8-8.8 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11346, per ASTM A600 Table 1. |
| M 47 |  | 1.05-1.15 | 0.15-0.4 | 0.2-0.45 | 3.5-4.0 | 9.25-10.0 | 1.15-1.35 | 1.3-1.8 | 4.75-5.25 | P ≤0.03 · S ≤0.03 Cobalt-bearing high speed steel, UNS T11347, per ASTM A600 Table 1. |
| M 50 |  | 0.78-0.88 | 0.15-0.45 | 0.2-0.6 | 3.75-4.5 | 3.9-4.75 | 0.8-1.25 |  |  | P ≤0.03 · S ≤0.03 Intermediate high speed steel, UNS T11350, per ASTM A600 Table 1. |
| M 52 |  | 0.85-0.95 | 0.15-0.45 | 0.2-0.6 | 3.5-4.3 | 4.0-4.9 | 1.65-2.25 | 0.75-1.5 |  | P ≤0.03 · S ≤0.03 Intermediate high speed steel, UNS T11352, per ASTM A600 Table 1. |
| M 62 |  | 1.25-1.35 | 0.15-0.4 | 0.15-0.4 | 3.5-4.0 | 10.0-11.0 | 1.8-2.1 | 5.75-6.5 |  | P ≤0.03 · S ≤0.03 Molybdenum high speed steel per ASTM A600 Table 1. |

## Carbon Steel

*93* grades

Carbon steels take their properties from carbon, up to about one percent, with manganese and silicon and only residual amounts of anything else. Strength and hardenability climb with carbon while ductility and weldability fall, which is why low-carbon grades go into forming and welding work and medium and high carbon into shafts, springs and wear parts. They cover structural sections, plate, bar stock, fasteners, forgings and general engineering components.

[Carbon Steel grades in detail](https://www.laxconsteels.com/grades/carbon-steel/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Other |
| --- | --- | --- | --- | --- | --- |
| EN 1 A |  | ≤0.15 | 0.9-1.3 | ≤0.1 | S 0.2-0.3 · P ≤0.07 |
| EN 1 B |  | 0.07-0.15 | 1.0-1.4 | ≤0.1 | S 0.3-0.6 · P ≤0.06 |
| EN 2 E |  | ≤0.15 | ≤0.5 | 0.1-0.35 | S ≤0.05 · P ≤0.05 |
| EN 3 |  | ≤0.25 | ≤1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 3 A |  | 0.15-0.25 | 0.4-0.9 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 3 B |  | ≤0.25 | ≤1.0 | ≤0.35 | S ≤0.06 · P ≤0.06 |
| EN 3 C |  | 0.17-0.23 | 0.6-1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.05 |
| EN 5 |  | 0.25-0.35 | 0.6-1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| [EN 8](https://www.laxconsteels.com/grades/en-8/) |  | 0.36-0.44 | 0.6-1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 8 B |  | 0.35-0.4 | 0.7-0.9 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 8 C |  | 0.38-0.43 | 0.7-0.9 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 8 D |  | 0.4-0.45 | 0.7-0.9 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 8 E |  | 0.35-0.4 | 0.9-1.1 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 8 M |  | 0.35-0.45 | 1.0-1.3 | ≤0.25 | S 0.12-0.2 · P ≤0.06 |
| EN 8 DM |  | 0.4-0.45 | 0.9-1.3 | ≤0.25 | S 0.12-0.2 · P ≤0.06 |
| [EN 9](https://www.laxconsteels.com/grades/en-9/) |  | 0.5-0.6 | 0.5-0.8 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 15 |  | 0.3-0.4 | 1.3-1.7 | 0.1-0.35 | S ≤0.05 · P ≤0.05 |
| EN 15 AM |  | 0.3-0.4 | 1.3-1.7 | ≤0.25 | S 0.12-0.2 · P ≤0.06 |
| EN 15 B |  | 0.35-0.4 | 1.1-1.3 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 32 B |  | 0.1-0.18 | 0.6-1.0 | 0.05-0.35 | S ≤0.07 · P ≤0.05 |
| EN 32 C |  | 0.1-0.18 | 0.6-1.0 | 0.05-0.35 | S ≤0.05 · P ≤0.05 |
| EN 32 M |  | 0.1-0.18 | 0.9-1.2 | 0.05-0.35 | S 0.1-0.15 · P ≤0.05 |
| EN 42 |  | 0.7-0.85 | 0.55-0.75 | 0.1-0.4 | S ≤0.05 · P ≤0.05 |
| EN 42 B |  | 0.6-0.7 | 0.55-0.8 | ≤0.35 | S ≤0.05 · P ≤0.05 |
| EN 42 C |  | 0.7-0.8 | 0.55-0.8 | ≤0.35 | S ≤0.05 · P ≤0.05 |
| EN 43 |  | 0.45-0.6 | 0.6-0.8 | 0.1-0.4 | S ≤0.05 · P ≤0.05 |
| EN 43 A |  | 0.45-0.55 | 0.7-1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 43 B |  | 0.45-0.5 | 0.7-1.0 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 43 D |  | 0.6-0.65 | 0.4-0.6 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 43 E |  | 0.65-0.7 | 0.7-0.9 | 0.05-0.35 | S ≤0.06 · P ≤0.06 |
| EN 44 |  | 0.9-1.2 | 0.45-0.7 | ≤0.3 | S ≤0.05 · P ≤0.05 |
| EN 44 B |  | 0.9-1.0 | 0.4-0.7 | ≤0.35 | S ≤0.05 · P ≤0.05 |
| EN 45 | 9255 · 55Si7 | 0.55-0.6 | 0.7-1.0 | 1.5-2.0 | S ≤0.05 · P ≤0.05 |
| EN 45 A | 9260 · 60Si7 | 0.55-0.65 | 0.7-1.0 | 1.7-2.0 | S ≤0.05 · P ≤0.05 |
| CL 1 |  | 0.1-0.18 | 0.4-0.7 | 0.1-0.3 | S ≤0.05 · P ≤0.05 |
| CL 2 |  | 0.15-0.25 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| CL 3 |  | 0.25-0.35 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| CL 3A |  | 0.3-0.4 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| CL 4 |  | 0.4-0.5 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| C 14 |  | 0.1-0.18 | 0.4-0.7 | 0.15-0.35 | S ≤0.055 · P ≤0.055 |
| C 15 |  | 0.12-0.18 | 0.3-0.6 | 0.15-0.35 | S ≤0.045 · P ≤0.045 |
| C 22 |  | 0.17-0.24 | 0.3-0.6 | 0.15-0.35 | S ≤0.045 · P ≤0.045 |
| C 30 |  | 0.25-0.35 | 0.6-0.9 | 0.05-0.35 | S ≤0.05 · P ≤0.05 |
| C 35 |  | 0.32-0.39 | 0.6-0.9 | 0.05-0.4 | S ≤0.035 · P ≤0.035 |
| C 40 |  | 0.35-0.45 | 0.6-0.9 | 0.05-0.35 | S ≤0.05 · P ≤0.05 |
| C 45 |  | 0.4-0.5 | 0.6-0.9 | 0.05-0.35 | S ≤0.05 · P ≤0.05 |
| IS 226 |  | ≤0.25 |  |  | S ≤0.05 · P ≤0.05 |
| 14 Mn IS 14 |  | 0.1-0.18 | 1.2-1.5 | 0.05-0.3 | S 0.1-0.18 · P ≤0.055 |
| C 15 Mn 75 |  | 0.1-0.2 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| C 25 Mn 75 |  | 0.2-0.3 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| 20 Mn2 |  | 0.16-0.24 | 1.3-1.7 | 0.1-0.35 | S ≤0.05 · P ≤0.05 |
| 37 Mn6 |  | 0.32-0.42 | 1.3-1.7 | 0.1-0.35 | S ≤0.035 · P ≤0.035 |
| 37 C 15 |  | 0.32-0.42 | 1.3-1.7 | 0.1-0.35 |  |
| 45 C 8 |  | 0.4-0.5 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| 35 C 8 |  | 0.3-0.4 | 0.6-0.9 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| ASTM A 105 |  | ≤0.35 | 0.6-1.05 | 0.1-0.35 | S ≤0.04 · P ≤0.035 |
| SAE 1016 |  | 0.13-0.18 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1018 |  | 0.15-0.2 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1020 |  | 0.18-0.23 | 0.3-0.6 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1026 |  | 0.22-0.28 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1028 |  | 0.25-0.31 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1030 |  | 0.28-0.34 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1035 |  | 0.32-0.38 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1038 |  | 0.35-0.42 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1040 |  | 0.37-0.44 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1041 |  | 0.36-0.44 | 1.35-1.65 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1045 |  | 0.43-0.5 | 0.6-0.9 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1046 |  | 0.43-0.5 | 0.7-1.0 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1052 |  | 0.47-0.55 | 1.2-1.5 |  | S ≤0.05 · P ≤0.04 Si content is subject to agreement between purchaser and supplier per SAE J403 |
| SAE 1137 |  | 0.32-0.39 | 1.35-1.65 | ≤0.2 | S 0.08-0.13 · P ≤0.04 |
| SAE 1140 |  | 0.37-0.44 | 0.7-1.0 | ≤0.2 | S 0.08-0.13 · P ≤0.04 |
| SAE 1141 |  | 0.37-0.45 | 1.35-1.65 | ≤0.2 | S 0.08-0.13 · P ≤0.04 |
| SAE 1552 |  | 0.47-0.55 | 1.2-1.5 | 0.15-0.35 | S ≤0.05 · P ≤0.04 |
| SAE 1541 |  | 0.36-0.44 | 1.35-1.65 | 0.15-0.3 | S ≤0.035 · P ≤0.035 |
| Ck 35 |  | 0.32-0.39 | 0.5-0.8 | ≤0.4 | S ≤0.035 · P ≤0.035 |
| Ck 45 |  | 0.42-0.5 | 0.5-0.8 | 0.15-0.35 | S ≤0.03 · P ≤0.035 |
| 40Mn4 |  | 0.36-0.44 | 0.8-1.1 | 0.25-0.5 | S ≤0.035 · P ≤0.035 |
| ST 37 |  | ≤0.17 | 0.08-0.7 | 0.1-0.3 | S ≤0.04 · P ≤0.04 C maximum 0.17 for product thickness up to 16 mm per DIN 17100 (St 37-2) |
| ST C - 60 |  | 0.57-0.65 | 0.6-0.8 | 0.25-0.35 | S ≤0.035 · P ≤0.035 |
| ST 50-11 |  | 0.32-0.4 | 0.4-0.7 | 0.15-0.35 | S ≤0.045 · P ≤0.045 |
| ST 52-3 |  | ≤0.22 | ≤1.6 | ≤0.55 | S ≤0.045 · P ≤0.045 C maximum 0.20 for product thickness up to 16 mm, 0.22 above, per DIN 17100 (St 52-3) |
| SSF 44 |  | 0.42-0.5 | 0.55-0.75 | 0.15-0.35 | S ≤0.04 · P ≤0.04 |
| ST 42 |  | ≤0.2 | 0.4-0.7 | 0.1-0.35 | S ≤0.05 · P ≤0.05 |
| CF 53 |  | 0.5-0.6 | 0.5-0.7 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| 45 (GOST 1050) |  | 0.42-0.5 | 0.5-0.8 | 0.17-0.37 | S ≤0.04 · P ≤0.035 · Cr ≤0.25 · Ni ≤0.25 · Cu ≤0.25 · As ≤0.08 |
| ST 50-2 |  | 0.27-0.35 | ≤1.0 | 0.1-0.4 | S ≤0.04 · P ≤0.04 |
| IS 2062 E250 |  | ≤0.23 | ≤1.5 | ≤0.4 | S ≤0.045 · P ≤0.045 Structural steel per IS 2062 Table 1, quality A; qualities BR, B0 and C are tighter |
| IS 2062 E350 |  | ≤0.2 | ≤1.55 | ≤0.45 | S ≤0.045 · P ≤0.045 Structural steel per IS 2062 Table 1 |
| IS 2062 E450 |  | ≤0.22 | ≤1.65 | ≤0.45 | S ≤0.045 · P ≤0.045 High tensile structural steel per IS 2062 Table 1 |
| IS 1786 Fe 500D |  | ≤0.25 |  |  | S ≤0.04 · P ≤0.04 · S+P ≤0.075 High ductility TMT rebar per IS 1786 |
| IS 4923 YSt 210 |  |  |  |  | S ≤0.05 · P ≤0.05 Hollow section steel; IS 4923 limits only S and P, grades differ by strength |
| IS 4923 YSt 240 |  |  |  |  | S ≤0.05 · P ≤0.05 Hollow section steel; IS 4923 limits only S and P, grades differ by strength |
| IS 4923 YSt 310 |  |  |  |  | S ≤0.05 · P ≤0.05 Hollow section steel; IS 4923 limits only S and P, grades differ by strength |

## Alloy Steel

*136* grades

Alloy steels add deliberate amounts of chromium, nickel, molybdenum, vanadium or boron, usually a few percent in total, to raise hardenability so that strength and toughness carry through a thick section rather than sitting on the surface. They are used quenched and tempered, or case-carburised where a hard skin over a tough core is wanted. Typical parts are gears, axles, crankshafts, connecting rods, bearings, spindles and heavy fasteners.

[Alloy Steel grades in detail](https://www.laxconsteels.com/grades/alloy-steel/)

Composition, % by mass

| Grade | Equivalents | C % | Mn % | Si % | Cr % | Ni % | Mo % | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| EN 14 A |  | 0.15-0.25 | 1.3-1.7 | 0.1-0.35 | ≤0.25 | ≤0.4 |  | S ≤0.06 · P ≤0.06 |
| EN 14 B |  | 0.2-0.3 | 1.3-1.7 | 0.1-0.35 |  | ≤0.4 |  | S ≤0.06 · P ≤0.06 |
| EN 16 |  | 0.3-0.4 | 1.3-1.8 | 0.1-0.35 |  |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 16 C |  | 0.35-0.4 | 1.3-1.8 | 0.1-0.35 |  |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 16 D |  | 0.25-0.35 | 1.3-1.8 | 0.1-0.35 |  |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 18 | 5140 · 37Cr4 | 0.35-0.45 | 0.6-0.95 | 0.1-0.35 | 0.85-1.15 |  |  | S ≤0.05 · P ≤0.05 |
| EN 18 C |  | 0.35-0.38 | 0.65-0.8 | 0.1-0.35 | 0.85-1.15 |  |  | S ≤0.05 · P ≤0.05 |
| EN 18 D |  | 0.38-0.43 | 0.65-0.8 | 0.1-0.35 | 0.85-1.15 |  |  | S ≤0.05 · P ≤0.05 |
| [EN 19](https://www.laxconsteels.com/grades/en-19/) | 4140 / 4142 · 42CrMo4 | 0.36-0.44 | 0.7-1.0 | 0.1-0.35 | 0.9-1.2 |  | 0.25-0.35 | S ≤0.05 · P ≤0.05 |
| EN 19 A |  | 0.35-0.45 | 0.5-0.8 | 0.1-0.35 | 0.9-1.2 |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 19 B |  | 0.35-0.4 | 0.5-0.8 | 0.1-0.35 | 0.9-1.2 |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 19 C |  | 0.4-0.45 | 0.5-0.8 | 0.1-0.35 | 0.9-1.2 |  | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 21 |  | 0.25-0.35 | 0.35-0.75 | 0.1-0.35 | ≤0.3 | 2.75-3.25 |  | S ≤0.05 · P ≤0.05 |
| EN 22 |  | 0.35-0.45 | 0.5-0.8 | 0.1-0.35 | ≤0.3 | 3.25-3.75 |  | S ≤0.05 · P ≤0.05 |
| [EN 24](https://www.laxconsteels.com/grades/en-24/) | 4340 · 34CrNiMo6 | 0.35-0.45 | 0.45-0.7 | 0.1-0.35 | 0.9-1.4 | 1.3-1.8 | 0.2-0.35 | S ≤0.05 · P ≤0.05 |
| EN 25 |  | 0.27-0.35 | 0.5-0.7 | 0.1-0.35 | 0.5-0.8 | 2.3-2.8 | 0.4-0.7 | S ≤0.05 · P ≤0.05 |
| EN 26 |  | 0.36-0.44 | 0.5-0.7 | 0.1-0.35 | 0.5-0.8 | 2.3-2.8 | 0.4-0.7 | S ≤0.05 · P ≤0.05 |
| EN 30 B |  | 0.26-0.34 | 0.4-0.6 | 0.1-0.35 | 1.1-1.4 | 3.9-4.3 | 0.2-0.4 | S ≤0.05 · P ≤0.05 |
| [EN 31](https://www.laxconsteels.com/grades/en-31/) | 52100 · 100Cr6 | 0.9-1.2 | 0.3-0.75 | 0.1-0.35 | 1.0-1.6 |  |  | S ≤0.05 · P ≤0.05 |
| EN 35 |  | 0.2-0.28 | 0.3-0.6 | 0.1-0.35 |  | 1.5-2.0 | 0.2-0.3 | S ≤0.05 · P ≤0.05 |
| EN 36 A |  | ≤0.15 | 0.3-0.6 | 0.1-0.35 | 0.6-1.1 | 3.0-3.75 |  | S ≤0.05 · P ≤0.05 |
| EN 36 B |  | 0.12-0.18 | 0.3-0.6 | 0.1-0.35 | 0.6-1.1 | 3.0-3.75 |  | S ≤0.05 · P ≤0.05 |
| [EN 36 C](https://www.laxconsteels.com/grades/en-36c/) |  | 0.12-0.18 | 0.3-0.6 | 0.1-0.35 | 0.6-1.1 | 3.0-3.75 | 0.1-0.25 | S ≤0.05 · P ≤0.05 |
| EN 39 B |  | 0.12-0.18 | ≤0.5 | 0.1-0.35 | 1.0-1.4 | 3.8-4.5 | 0.15-0.35 | S ≤0.05 · P ≤0.05 |
| EN 40 B |  | 0.2-0.3 | 0.4-0.65 | 0.1-0.35 | 2.9-3.5 | ≤0.4 | 0.4-0.7 | S ≤0.05 · P ≤0.05 |
| EN 41 B |  | 0.35-0.45 | ≤0.65 | 0.1-0.45 | 1.4-1.8 | ≤0.4 | 0.1-0.25 | S ≤0.05 · P ≤0.05 · Al 0.9-1.3 |
| EN 47 | 6150 · 50CrV4 | 0.45-0.55 | 0.5-0.8 | ≤0.5 | 0.8-1.2 |  |  | S ≤0.05 · P ≤0.05 · V ≥0.15 |
| EN 48 |  | 0.45-0.55 | 0.5-0.8 | 0.1-0.5 | 1.0-1.4 |  |  | S ≤0.05 · P ≤0.05 |
| EN 48 A |  | 0.5-0.6 | 0.6-0.9 | 1.35-1.65 | 0.55-0.85 |  |  | S ≤0.05 · P ≤0.05 |
| EN 50 |  | 0.4-0.5 | 0.5-0.7 | 0.1-0.35 | 1.0-1.5 |  |  | S ≤0.04 · P ≤0.04 · V ≥0.15 |
| EN 52 |  | 0.4-0.5 | 0.3-0.6 | 3.0-3.75 | 7.5-9.5 | ≤0.5 |  | S ≤0.04 · P ≤0.04 |
| EN 207 |  | 0.16-0.21 | 0.6-0.8 | 0.1-0.35 | 0.6-0.8 |  |  | S ≤0.05 · P ≤0.05 |
| EN 351 |  | ≤0.2 | 0.6-1.0 | ≤0.35 | 0.4-0.8 | 0.6-1.0 | ≤0.1 | S ≤0.05 · P ≤0.05 |
| EN 352 |  | ≤0.2 | 0.5-1.0 | ≤0.35 | 0.6-1.0 | 0.85-1.25 | ≤0.1 | S ≤0.05 · P ≤0.05 |
| EN 353 |  | 0.14-0.2 | 0.5-1.0 | ≤0.35 | 0.75-1.25 | 1.0-1.5 | 0.08-0.15 | S ≤0.05 · P ≤0.05 |
| EN 354 | 4320 | ≤0.2 | 0.5-1.0 | ≤0.35 | 0.75-1.25 | 1.5-2.0 | 0.1-0.2 | S ≤0.05 · P ≤0.05 |
| EN 355 |  | ≤0.2 | 0.4-0.7 | ≤0.35 | 1.4-1.7 | 1.8-2.2 | 0.15-0.25 | S ≤0.05 · P ≤0.05 |
| C 60 |  | 0.57-0.65 | 0.6-0.9 | 0.15-0.3 | ≤0.4 | ≤0.4 | ≤0.1 | S ≤0.025 · P ≤0.025 · Nb ≤0.02 · V ≤0.03 · Al 0.02-0.05 |
| 40 Cr 4 |  | 0.38-0.44 | 0.6-0.9 | 0.1-0.35 | 0.9-1.2 |  |  | S ≤0.035 · P ≤0.035 |
| 815 M - 17 |  | 0.14-0.2 | 0.6-0.9 | 0.1-0.35 | 0.8-1.2 | 1.2-1.7 | 0.1-0.2 | S ≤0.035 · P ≤0.035 |
| 40 Ni 14 |  | 0.38-0.45 | 0.5-0.8 | 0.1-0.35 | ≤0.3 | 3.2-3.6 |  | S ≤0.035 · P ≤0.035 |
| SAE 1036 B |  | 0.32-0.37 | 1.2-1.4 | 0.15-0.35 | ≤0.2 |  |  | S ≤0.03 · P ≤0.03 · B 0.0005-0.01 |
| SAE 4130 | 25CrMo4 | 0.28-0.33 | 0.4-0.6 | 0.2-0.3 | 0.8-1.1 |  | 0.15-0.25 | S ≤0.04 · P ≤0.04 |
| SAE 4135 H |  | 0.32-0.38 | 0.6-1.0 | 0.15-0.3 | 0.75-1.2 |  | 0.15-0.25 | S ≤0.025 · P ≤0.025 |
| [SAE 4140](https://www.laxconsteels.com/grades/sae-4140/) | 42CrMo4 · EN 19 | 0.38-0.43 | 0.75-1.0 | 0.15-0.35 | 0.8-1.1 |  | 0.15-0.25 | S ≤0.04 · P ≤0.035 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4150 |  | 0.48-0.53 | 0.75-1.0 | 0.2-0.35 | 0.8-1.1 |  | 0.15-0.25 | S ≤0.04 · P ≤0.035 |
| SAE 4320 | EN 354 | 0.17-0.22 | 0.45-0.65 | 0.2-0.35 | 0.4-0.6 | 1.65-2.0 | 0.2-0.3 | S ≤0.04 · P ≤0.035 |
| SAE 5150 |  | 0.48-0.53 | 0.7-0.9 | 0.2-0.35 | 0.7-0.9 |  |  | S ≤0.04 · P ≤0.035 |
| SAE 5160 |  | 0.55-0.65 | 0.75-1.0 | 0.2-0.35 | 0.7-0.9 |  |  | S ≤0.04 · P ≤0.04 |
| [SAE 8620](https://www.laxconsteels.com/grades/sae-8620/) | EN 362 | 0.18-0.23 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | S ≤0.04 · P ≤0.035 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8620 H |  | 0.17-0.23 | 0.6-0.95 | 0.15-0.35 | 0.35-0.65 | 0.35-0.75 | 0.15-0.25 | S ≤0.04 · P ≤0.035 |
| SAE 8622 |  | 0.2-0.25 | 0.7-0.9 | 0.2-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | S ≤0.04 · P ≤0.04 |
| SAE 8627 H |  | 0.24-0.3 | 0.6-0.95 | 0.15-0.3 | 0.35-0.65 | 0.35-0.75 | 0.15-0.25 | S 0.02-0.035 · P ≤0.035 |
| SAE 52100 | 100Cr6 · EN 31 | 0.95-1.1 | 0.25-0.45 | 0.2-0.35 | 1.3-1.6 |  |  | S ≤0.025 · P ≤0.025 |
| F - 1 |  | ≤0.28 | 0.6-0.9 | 0.15-0.35 |  |  | 0.44-0.65 | S ≤0.045 · P ≤0.045 |
| F - 2 |  | 0.05-0.21 | 0.3-0.8 | 0.1-0.6 | 0.5-0.81 |  | 0.44-0.65 | S ≤0.04 · P ≤0.04 |
| F - 5 | K41545 · 12CrMo195 | ≤0.15 | 0.3-0.6 | ≤0.5 | 4.0-6.0 | ≤0.5 | 0.44-0.65 | S ≤0.03 · P ≤0.03 |
| F - 9 | K90941 · X12CrMo91 | ≤0.15 | 0.3-0.6 | 0.5-1.0 | 8.0-10.0 |  | 0.9-1.1 | S ≤0.03 · P ≤0.03 |
| F - 11 | K11572 · 13CrMo44 | 0.1-0.2 | 0.3-0.8 | 0.5-1.0 | 1.0-1.5 |  | 0.44-0.65 | S ≤0.04 · P ≤0.04 |
| F - 12 | K11562 | 0.1-0.2 | 0.3-0.6 | 0.1-0.6 | 0.8-1.25 |  | 0.44-0.65 | S ≤0.04 · P ≤0.04 |
| F - 21 |  | 0.05-0.15 | 0.3-0.6 | ≤0.5 | 2.7-3.3 |  | 0.8-1.06 | S ≤0.04 · P ≤0.04 |
| F - 22 | K21590 · 10CrMo910 | 0.05-0.15 | 0.3-0.6 | 0.2-0.5 | 2.0-2.5 |  | 0.87-1.13 | S ≤0.04 · P ≤0.04 |
| F - 91 | X10CrMoVNb9-1 | 0.08-0.12 | 0.3-0.6 | 0.2-0.5 | 8.0-9.5 | ≤0.4 | 0.85-1.05 | S ≤0.01 · P ≤0.02 · Nb 0.06-0.1 · N 0.03-0.07 · Al ≤0.02 · V 0.18-0.25 |
| 15CrNi6 |  | 0.12-0.17 | 0.4-0.6 | 0.15-0.4 | 1.4-1.7 | 1.4-1.7 |  | S ≤0.035 · P ≤0.035 |
| 17CrNiMo6 |  | 0.14-0.19 | 0.4-0.6 | 0.15-0.4 | 1.5-1.8 | 1.4-1.7 | 0.25-0.35 | S ≤0.035 · P ≤0.035 |
| 16MnCr5 |  | 0.14-0.19 | 1.0-1.3 | 0.15-0.4 | 0.8-1.1 |  |  | S ≤0.035 · P ≤0.035 |
| 20MnCr5 |  | 0.17-0.22 | 1.1-1.4 | 0.15-0.4 | 1.0-1.3 |  |  | S ≤0.035 · P ≤0.035 |
| 34Cr4 |  | 0.3-0.37 | 0.6-0.9 | 0.15-0.4 | 0.9-1.2 |  |  | S ≤0.03 · P ≤0.035 |
| 41Cr4 |  | 0.38-0.45 | 0.6-0.9 | ≤0.4 | 0.9-1.2 |  |  | S ≤0.03 · P ≤0.035 |
| 31CrV3 |  | 0.28-0.35 | 0.4-0.6 | 0.25-0.4 | 0.4-0.7 |  |  | S ≤0.03 · P ≤0.03 · V 0.07-0.12 |
| 37CrV3 |  | 0.34-0.41 | 0.6-0.9 | 0.15-0.4 | 0.9-1.2 |  |  | S ≤0.035 · P ≤0.035 · V 0.07-0.12 |
| 50Cr4V2 |  | 0.46-0.54 | 0.5-0.8 | 0.1-0.3 | 0.9-1.2 |  |  | S ≤0.035 · P ≤0.035 · V 0.15-0.3 |
| 50CrV4 | 6150 · EN 47 | 0.47-0.55 | 0.7-1.1 | 0.15-0.4 | 0.9-1.2 |  |  | S ≤0.03 · P ≤0.035 · V 0.1-0.2 |
| 58CrV4 |  | 0.55-0.62 | 0.7-1.1 | 0.15-0.4 | 0.9-1.2 |  |  | S ≤0.035 · P ≤0.035 · V 0.1-0.2 |
| 25Cr Mo4 | 4130 | 0.22-0.29 | 0.6-0.9 | 0.15-0.4 | 0.9-1.2 |  | 0.15-0.3 | S ≤0.03 · P ≤0.035 |
| 40Cr 4B |  | 0.35-0.4 | 0.6-0.9 | 0.1-0.35 | 1.05-2.0 |  |  | S 0.02-0.035 · P ≤0.035 |
| 42CrV6 |  | 0.38-0.46 | 0.5-0.8 | 0.15-0.35 | 1.4-1.7 |  |  | S ≤0.035 · P ≤0.035 · V 0.07-0.12 |
| 42Cr Mo4 | 4140 | 0.38-0.45 | 0.6-0.9 | ≤0.4 | 0.9-1.2 |  | 0.15-0.3 | S ≤0.03 · P ≤0.035 |
| 709M40 |  | 0.36-0.44 | 0.7-1.0 | 0.15-0.35 | 0.9-1.2 |  | 0.25-0.35 |  |
| File Steel |  | 1.25-1.4 | ≤0.4 | ≤0.3 | 0.5-0.8 |  |  | S ≤0.03 · P ≤0.03 |
| Cr 20 |  | 0.18-0.23 | 0.6-0.85 | 0.15-0.35 | 0.9-1.2 |  |  | S ≤0.03 · P ≤0.03 |
| Cr 40 |  | 0.38-0.43 | 0.6-0.85 | 0.15-0.35 | 0.9-1.2 |  |  | S ≤0.03 · P ≤0.03 |
| 61 Sc 7 |  | 0.57-0.64 | 0.6-0.9 | 1.6-2.0 | 0.2-0.45 |  |  | S ≤0.035 · P ≤0.035 |
| 60 Cr4 V2 |  | 0.55-0.65 | 0.8-1.1 | 0.15-0.35 | 0.9-1.2 |  |  | S ≤0.035 · P ≤0.035 · V 0.07-0.15 |
| FASD 1 |  | 0.37-0.45 | 0.7-0.9 | 0.15-0.35 | 0.3-0.42 | 0.25-0.35 |  | S ≤0.045 · P ≤0.045 |
| FASD 2 |  | 0.4-0.45 | 0.6-0.8 | 0.5-0.7 | 0.5-0.7 |  |  | S ≤0.05 · P ≤0.05 · V 0.06-0.1 |
| GOST-(20-XCHMTY-14) |  | 0.18-0.24 | 0.9-1.2 | 1.2-1.5 | 0.6-0.9 | 0.9-1.2 | 0.1-0.15 | S ≤0.035 · P ≤0.035 |
| 35KhGSA |  | 0.32-0.39 | 0.8-1.1 | 1.1-1.4 | 1.1-1.4 | ≤0.4 |  | S 0.02-0.04 · P ≤0.04 |
| 38KhS |  | 0.34-0.42 | 0.3-0.6 | 1.0-1.4 | 1.3-1.6 |  |  | S ≤0.03 · P ≤0.03 |
| 14Kh2N3MA |  | 0.12-0.17 | 0.3-0.6 | 0.17-0.37 | 1.5-1.75 | 2.75-3.15 | 0.2-0.3 |  |
| 20KhN2M |  | 0.15-0.22 | 0.4-0.7 | 0.17-0.37 | 0.4-0.6 | 1.6-2.0 | 0.2-0.3 |  |
| 30KhN2MA |  | 0.27-0.34 | 0.3-0.6 | 0.17-0.37 | 0.6-0.9 | 1.25-1.65 | 0.2-0.3 |  |
| 38Kh2N2MA |  | 0.33-0.4 | 0.25-0.5 | 0.17-0.37 | 1.3-1.7 | 1.3-1.7 | 0.2-0.3 |  |
| 40KhN2MA |  | 0.37-0.44 | 0.5-0.8 | 0.17-0.37 | 0.6-0.9 | 1.25-1.65 | 0.15-0.25 |  |
| 40Kh2N2MA |  | 0.35-0.42 | 0.3-0.6 | 0.17-0.37 | 1.25-1.65 | 1.35-1.75 | 0.2-0.3 |  |
| [SAE 4340](https://www.laxconsteels.com/grades/sae-4340/) | 34CrNiMo6 · EN 24 | 0.38-0.43 | 0.6-0.8 | 0.15-0.35 | 0.7-0.9 | 1.65-2.0 | 0.2-0.3 | S ≤0.04 · P ≤0.035 Nickel chromium molybdenum steel per SAE J404, close to EN 24 |
| SAE 4118 |  | 0.18-0.23 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 |  | 0.08-0.15 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4137 |  | 0.35-0.4 | 0.7-0.9 | 0.15-0.35 | 0.8-1.1 |  | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4142 | 42CrMo4 · EN 19 | 0.4-0.45 | 0.75-1.0 | 0.15-0.35 | 0.8-1.1 |  | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4145 |  | 0.43-0.48 | 0.75-1.0 | 0.15-0.35 | 0.8-1.1 |  | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4147 |  | 0.45-0.5 | 0.75-1.0 | 0.15-0.35 | 0.8-1.1 |  | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4161 |  | 0.56-0.64 | 0.75-1.0 | 0.15-0.35 | 0.7-0.9 |  | 0.25-0.35 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4337 |  | 0.35-0.4 | 0.6-0.8 | 0.15-0.35 | 0.7-0.9 | 1.65-2.0 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4615 |  | 0.13-0.18 | 0.45-0.65 | 0.15-0.35 |  | 1.65-2.0 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4620 |  | 0.17-0.22 | 0.45-0.65 | 0.15-0.35 |  | 1.65-2.0 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4626 |  | 0.24-0.29 | 0.45-0.65 | 0.15-0.35 |  | 0.7-1.0 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4718 |  | 0.16-0.21 | 0.7-0.9 | 0.15-0.35 | 0.35-0.55 | 0.9-1.2 | 0.3-0.4 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4720 |  | 0.17-0.22 | 0.5-0.7 | 0.15-0.35 | 0.35-0.55 | 0.9-1.2 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4815 |  | 0.13-0.18 | 0.4-0.6 | 0.15-0.35 |  | 3.25-3.75 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4817 |  | 0.13-0.2 | 0.4-0.6 | 0.15-0.35 |  | 3.25-3.75 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 4820 |  | 0.18-0.23 | 0.5-0.7 | 0.15-0.35 |  | 3.25-3.75 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5120 |  | 0.17-0.22 | 0.7-0.9 | 0.15-0.35 | 0.7-0.9 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5130 |  | 0.28-0.33 | 0.7-0.9 | 0.15-0.35 | 0.8-1.1 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5132 |  | 0.3-0.35 | 0.6-0.8 | 0.15-0.35 | 0.75-1.0 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5135 |  | 0.33-0.38 | 0.6-0.8 | 0.15-0.35 | 0.8-1.05 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5140 | 37Cr4 · EN 18 | 0.38-0.43 | 0.7-0.9 | 0.15-0.35 | 0.7-0.9 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5145 |  | 0.43-0.48 | 0.7-0.9 | 0.15-0.3 | 0.7-0.9 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5147 |  | 0.46-0.51 | 0.7-0.95 | 0.15-0.35 | 0.85-1.15 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 5155 |  | 0.51-0.59 | 0.7-0.9 | 0.15-0.35 | 0.7-0.9 |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 6118 |  | 0.16-0.21 | 0.5-0.7 | 0.15-0.35 | 0.5-0.7 |  |  | P ≤0.035 · S ≤0.04 · V 0.1-0.15 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 6150 | 50CrV4 · EN 47 | 0.48-0.53 | 0.7-0.9 | 0.15-0.35 | 0.8-1.1 |  |  | P ≤0.035 · S ≤0.04 · V ≥0.15 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8615 |  | 0.13-0.18 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8617 |  | 0.15-0.2 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8625 |  | 0.23-0.28 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8630 |  | 0.28-0.33 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8637 |  | 0.35-0.4 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8640 |  | 0.38-0.43 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8642 |  | 0.4-0.45 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8645 |  | 0.43-0.48 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8655 |  | 0.51-0.59 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8660 |  | 0.56-0.64 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.15-0.25 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8720 |  | 0.18-0.23 | 0.7-0.9 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8740 |  | 0.38-0.43 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.2-0.3 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 8822 |  | 0.2-0.25 | 0.75-1.0 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.3-0.4 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| [SAE 9260](https://www.laxconsteels.com/grades/sae-9260/) | 60Si7 · EN 45A | 0.56-0.64 | 0.75-1.0 | 1.8-2.2 |  |  |  | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |
| SAE 9310 |  | 0.08-0.13 | 0.45-0.65 | 0.15-0.35 | 1.0-1.4 | 3.0-3.5 | 0.08-0.15 | P ≤0.035 · S ≤0.04 Chemical ranges per SAE J404 as printed in ASTM A322 Table 1. Phosphorus and sulphur are maximums. |

## Spring Steel

*1* grades

Spring steels are medium to high carbon grades, usually with silicon, manganese, chromium or vanadium, hardened and tempered to a high elastic limit so they return to shape after loading. Fatigue life governs their design, so steel cleanliness, surface finish and control of decarburisation matter as much as the composition itself. They are used for leaf and coil springs, torsion bars, clutch and valve springs and spring washers.

[Spring Steel grades in detail](https://www.laxconsteels.com/grades/spring-steel/)

Composition, % by mass

| Grade | C % | Mn % | Si % | Cr % | Other |
| --- | --- | --- | --- | --- | --- |
| SUP-9 | 0.52-0.6 | 0.65-0.95 | 0.15-0.35 | 0.65-0.95 | S ≤0.035 · P ≤0.035 |

## Titanium

*12* grades

Titanium grades divide into commercially pure grades, where oxygen and iron content set the strength, and alloyed grades such as Ti-6Al-4V, where aluminium stabilises the alpha phase and vanadium the beta. The metal has a little over half the density of steel at comparable strength, and a passive oxide film that resists seawater and most chlorides. It is used for aerospace structure, medical implants, heat exchangers and chemical or offshore equipment.

[Titanium grades in detail](https://www.laxconsteels.com/grades/titanium/)

Composition, % by mass

| Grade | C % | V % | N % | Al % | Fe % | Other |
| --- | --- | --- | --- | --- | --- | --- |
| Titanium Grade 1 / Ti Grade 1 | ≤0.08 |  | ≤0.03 |  | ≤0.2 | O ≤0.18 · H ≤0.015 UNS R50250. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| [Titanium Grade 2 / Ti Grade 2](https://www.laxconsteels.com/grades/titanium-grade-2/) | ≤0.08 |  | ≤0.03 |  | ≤0.3 | O ≤0.25 · H ≤0.015 UNS R50400. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 3 / Ti Grade 3 | ≤0.08 |  | ≤0.05 |  | ≤0.3 | O ≤0.35 · H ≤0.015 UNS R50550. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 4 / Ti Grade 4 | ≤0.08 |  | ≤0.05 |  | ≤0.5 | O ≤0.4 · H ≤0.015 UNS R50700. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| [Titanium Grade 5 / Ti Grade 5 / Ti-6Al-4V](https://www.laxconsteels.com/grades/titanium-grade-5/) | ≤0.08 | 3.5-4.5 | ≤0.05 | 5.5-6.75 | ≤0.4 | O ≤0.2 · H ≤0.015 UNS R56400. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 7 / Ti Grade 7 | ≤0.08 |  | ≤0.03 |  | ≤0.3 | O ≤0.25 · H ≤0.015 · Pd 0.12-0.25 UNS R52400. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 9 / Ti Grade 9 / Ti-3Al-2.5V | ≤0.08 | 2.0-3.0 | ≤0.03 | 2.5-3.5 | ≤0.25 | O ≤0.15 · H ≤0.015 UNS R56320. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 11 / Ti Grade 11 | ≤0.08 |  | ≤0.03 |  | ≤0.2 | O ≤0.18 · H ≤0.015 · Pd 0.12-0.25 UNS R52250. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 12 / Ti Grade 12 | ≤0.08 |  | ≤0.03 |  | ≤0.3 | O ≤0.25 · H ≤0.015 · Ni 0.6-0.9 · Mo 0.2-0.4 UNS R53400. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 16 / Ti Grade 16 | ≤0.08 |  | ≤0.03 |  | ≤0.3 | O ≤0.25 · H ≤0.015 · Pd 0.04-0.08 UNS R52402. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 17 / Ti Grade 17 | ≤0.08 |  | ≤0.03 |  | ≤0.2 | O ≤0.18 · H ≤0.015 · Pd 0.04-0.08 UNS R52252. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |
| Titanium Grade 23 / Ti Grade 23 / Ti-6Al-4V ELI | ≤0.08 | 3.5-4.5 | ≤0.03 | 5.5-6.5 | ≤0.25 | O ≤0.13 · H ≤0.0125 UNS R56407. ASTM B348 / B265. Titanium is the balance, determined by difference. Other elements 0.1 maximum each, 0.4 maximum total. |