Stainless Steel


Comparison of foreign standards – stainless steel specifications.

Great
Britain BS970
U.S.A
AISI/SAE
Germany
W-Nr Din
Italy
UNI
Japan
JIS
France
AFNOR
Spain
UNE
17/4PHASTM
A564
Grade 630
50049
1.4542
Z7CNU 17-04
303S313031.4305
X10CrNiS18-9
X10CrNiS1809SUS303Z8CNF 18-09F.5308
304S11304L1.4307 1.4306
X10CrNiS18-9
X3CrNi1811
X2CrNi1811
SCS19
SUS304L
Z1CN18-12
Z2CN18-10
F.3503
304S153041.4301
X5CrNi1810
X5CrNi1810SUS304Z4CN19-10FF
Z5CN17-08
F.3504
316S31316X5CrNiMo17133X5CrNiMo1713
X8CrNiMo1713
SUS316Z6CND18-12-03
316S11316L1.4404
X2CrNiMo17132
X2CrNiMo1713
X8CrNiMo1713
SUS316LZ2CND17-12
Z2CND18-13
F.3533
F.3537
321S313211.4541
X6CrNiTi18-10
X6CrNiTi1811SUS321Z6CNT18-10F.3523
310310
310S
1.4845
X12CrNi25-21
X6CrNi2521SUH310
SUS310S
Z8CN25-20
Z12CN25-20
416S214161.4005
X12CrS13
X12CrS13SUS416Z11CF13F.3411
420S291.4024
X15Cr13
SUS410J1Z13C13F.3415
420S374201.4021
X20Cr13
X20Cr13SUS420J1Z20C13F.3402
420S45420F1.4028 1.4034
X30Cr13
(G)X30Cr13SUS420J2Z30C13
Z33C13
F.3403
410S214101.4006 1.4000
X12Cr13
X12Cr13
X109Cr13
SUS410Z10C13F.3401
431S294311.4057
X20CrNi172
X16CrNi16SUS431Z15CN16-02F.3427

If the specification you require is not listed, please e-mail us with the full specification and details of your required sizes and quantities.

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All our stainless steel specifications and grades are available with a cast and analysis certificate, 3.1 mill certificate or a certificate of conformity. Please request with our sales team when placing orders.


Our stainless steel is supplied in accordance with our ISO 9001:2008 registration.  West Yorkshire Steel aim to satisfy the quality and delivery needs of our customers and we measure our performance by meeting customers’ requirements and work to continually improve the service that we provide. In order to achieve this, it is our policy to maintain an efficient and effective Quality Management System based upon the requirements of BS EN ISO 9001:2008. Our staff are appropriately trained in order to effectively implement our Quality Management System. The achievement of quality and continuous improvement is fundamental to all the steel products and services provided by us and are practiced by all employees as an integral part of their work.