Hexagonal Bright Bars

Our integrated manufacturing edge gives us the ability to produce steel in a variety of finishes, surface options and profiles

15 mm - 52 mm (5/8" - 2") Up to 6 metres EN, DIN, JIS, ASTM, BS, ASME, AISI REQUEST A QUOTE

OVERVIEW

Product Description

The bright drawn stainless steel hexagon bar are produced with high strength, corrosion resistance and durability, which makes them suitable for various applications like manufacturing nuts, valves, hose ends, fasteners, and hex bolts. Hexagonal bars are available in various grades, including SS 303/304/316 and other austenitic stainless steel grades, which offer excellent mechanical properties. Depending on the specific requirements of your application, you can choose from stainless steel hexagonal rod as raw material for your project. Stainless steel hex bar offers superior performance in applications where durability and strength are paramount.

Weight per metre across flats is in the hexagon bar weight chart, and the weight calculator takes the across-flats dimension directly.

Stainless steel hexagonal bright bars produced by Laxcon Steels

SPECIFICATION

Supply Conditions

Size range: 15 mm - 52 mm (5/8" - 2")
Length: Up to 6 metres
Tolerances: h11, k12, k13, ASTM A484
Grit Polish: As per customer’s request
Heat Treatment: Solution Annealed, Oil & Water Quenched / Tempered
Bars End Finish: Chamfered ends, 30°, 45°, 60°, and Plain Ends without Burrs or Sharp Edges
Specifications: As per EN, DIN, JIS, ASTM, BS, ASME, AISI, etc.

Free from Radioactive elements, Mercury & Lead contamination
Grade confirmation through PMI testing with Handheld Spectrometers
Weight per metre for every listed size: metal weight calculator

Size Range

HEX DRAWN (MM)	HEX DRAWN (IN)	HEX BLACK / HRAP (MM)
15 mm		16 mm
15.88 mm	5/8"	17 mm
16 mm		17 mm
18 mm		19 mm
19 mm		20 mm
19.05 mm	3/4"	20 mm
20 mm		21.5 mm
21 mm		22.5 mm
22 mm		23.5 mm
22.22 mm	7/8"	23.5 mm
24 mm		25.5 mm
25 mm		26.5 mm
25.4 mm	1"	27 mm
26 mm		27.5 mm
27 mm		28.5 mm
28 mm		30 mm
28.58 mm	1 1/8"	30 mm
30 mm		32 mm
31.75 mm	1 1/4"	34 mm
32 mm		34 mm
34 mm		36 mm
34.92 mm	1 3/8"	37 mm
36 mm		38 mm
38 mm		40 mm
38.1 mm	1 1/2"	40 mm
40 mm		42 mm
45 mm		47 mm
50 mm		52 mm
50.8 mm	2"	53 mm
52 mm		55 mm

Governing standards

EN 10088-3: Stainless steels: technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products for general purposes. Composition, heat treatment condition and mechanical properties per grade.
EN 10278: Dimensions and tolerances of bright steel products: the h and k tolerance classes for drawn, turned, peeled and ground bars.
EN 10061: Hot rolled hexagon steel bars for general purposes: dimensions and tolerances on shape and dimensions.
ASTM A276/A276M: Stainless steel bars and shapes: composition, condition, mechanical properties and finish designations for hot-finished and cold-finished bar.
ASTM A484/A484M: General requirements for stainless steel bars, billets and forgings: permissible variations in dimensions, straightness, weight and length, and the test and marking requirements every bar order inherits.
ASTM A582/A582M: Free-machining stainless steel bars: the specification under which 303 and the other resulphurised grades are supplied.
ISO 286-1 and 286-2: The ISO code system for tolerances on linear sizes: the IT grades and the fundamental deviations behind h7, h9, h11, k12, k13, j6, f7 and f8.
EN 10204: Metallic products, types of inspection documents: the 2.2 test report and the 3.1 and 3.2 inspection certificates a purchase order can call for.

Tolerance by size, ISO 286

Nominal across flats (mm)	h11	k12	k13
over 10 to 18	0 / -0.110	0 / +0.180	0 / +0.270
over 18 to 30	0 / -0.130	0 / +0.210	0 / +0.330
over 30 to 50	0 / -0.160	0 / +0.250	0 / +0.390
over 50 to 80	0 / -0.190	0 / +0.300	0 / +0.460

Deviations in millimetres from the nominal size, ISO 286-1 and ISO 286-2. An h class permits no plus material and the full grade below nominal; the k12 and k13 classes of EN 10278, used for peeled and turned bars, permit the full grade above nominal and none below.

Weight per metre

Across flats (mm)	kg per metre	Metres per tonne
15	1.54	649.6
15.88	1.73	579.6
16	1.75	570.9
18	2.22	451.1
19	2.47	404.9
19.05	2.48	402.7
20	2.74	365.4
21	3.02	331.4
22	3.31	302.0
22.22	3.38	296.0
24	3.94	253.7
25	4.28	233.8
25.4	4.41	226.5
26	4.63	216.2
27	4.99	200.5
28	5.36	186.4
28.58	5.59	178.9
30	6.16	162.4
31.75	6.90	145.0
32	7.01	142.7
34	7.91	126.4
34.92	8.34	119.9
36	8.87	112.8
38	9.88	101.2
38.1	9.93	100.7
40	10.95	91.3
45	13.86	72.2
50	17.11	58.5
50.8	17.66	56.6
52	18.50	54.1

Density 7.90 g/cm³, plain section (across flats squared x 0.006842).

Hexagon bar against round bar

A hexagon bar exists so that the flats already there can be gripped by a spanner or a chuck: a nut, a hose end, a valve spindle or a bolt head is turned from hexagon stock with no milling of flats. The across-flats size is the ordering dimension and the drawn tolerance on it is h11 under EN 10278; the corner-to-corner dimension is 1.155 times across flats. The same part turned from round bright bar needs the flats milled afterwards, which costs a second operation and wastes the corners.

The free-machining grade 303, supplied under ASTM A582, is the usual hexagon grade for high-volume turned parts; 304 and 316 are used where the finished part is welded or sees corrosive service, because the sulphur that makes 303 machine freely also reduces its corrosion resistance and weldability. Weight per metre is across flats squared times 0.006842, so a 50 mm hexagon weighs 17.1 kg per metre against 15.5 kg for a 50 mm round.

Frequently Asked Questions

What stainless steel hex bar sizes does Laxcon publish?

Laxcon publishes stainless steel hexagonal bright bars from 15 mm to 52 mm across flats, on drawn and black or HRAP supply routes. The table below separates the listed sizes by route.

Which tolerances and heat treatments are available for hex bars?

Stainless steel hexagonal bars can be supplied to h11, k12, k13 or ASTM A484 tolerances in solution-annealed, oil-quenched, water-quenched or tempered condition.

What are stainless steel hexagonal bars used for?

Stainless steel hexagonal bars go into nuts, valves, hose ends, fasteners and hex bolts. Grade, tolerance, finish and end condition should be selected for the final component.

How can stainless steel hexagonal bars be packed and traced?

Laxcon packs stainless steel hexagonal bright bars in standard bundles of 500 to 1,000 kg with HDPE or LDPE wrapping and two lifting slings. ISPM 15 wooden boxes and fibre-tube packing are available, and every bundle is marked with heat number, grade, size, and net and gross weight.

What should an RFQ for stainless steel hexagonal bars include?

An enquiry for stainless steel hexagonal bright bars is quotable when it states the grade, governing standard, metric size or profile, tolerance, finish or heat-treatment condition, length, quantity, test or inspection requirement, and delivery destination.