Tool Steel


Comparison of foreign standards – tool steel specifications.

Great
Britain BS4659
U.S.A
AISI/SAE
Germany
W-Nr Din
Italy
UNI
Japan
Jis
France
AFNOR
Spain
UNE
B01O11.2510
100MnCrW4
95MnWCr5KU~SKS390MnWCrV5
90MWCV5
F.5220
95MnCrW5
BD2D2X155CrVMo12-1X155CrVMo121KUSKD11X160CrMoV12-2832CDV12-28F.520A
BD3D31.2080
X210Cr12
X205Cr12KUSKD1X200Cr12
Z200C12
F.5212
X210Cr12
BD6~D61.2436
BA2A21.2363
X100CrMoV5-1
X100CrMoV511KUSKD12X100CrMoV5Z
100CDV5
F5.227
X100CrMoV5
BH13H131.2344
X40CrMoV5-1
X40CrMoV511KUSKD61X40CrMoV5
Z40CDV5
F.5318
X40CrMoV5
BS1S11.2550
60WCrV7
55WCrV8KU55WC20F.5241
45WCrSi8
BP20P201.2311
40CrMnMo7
4201.2083
X42Cr13
SUS420J2X40Cr13
Z40C14
~BP301.2767
X45NiCrMo4
~42NiCrMo157SKH51-~Y 35NCD16
BM2M21.3343
S6 502
Z85WDCV
06-05-04-02
BM42M421.3247
S2-1-1-8
HS2-9-1-8SKH59Z110DKCWV
09-08-04-02-01
6-5-2
BW2W21.2833105MV01
BS14071.2002120C2

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

We’re here to help with those ‘hard to find’ steel grades.


All our tool 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 if placing any orders.


Our tool 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 continually work to 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 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 buy us and are practiced by all employees as an integral part of their work.