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
B01 O1 1.2510
100MnCrW4
95MnWCr5KU ~SKS3 90MnWCrV5
90MWCV5
F.5220
95MnCrW5
BD2 D2 X155CrVMo12-1 X155CrVMo121KU SKD11 X160CrMoV12-2832CDV12-28 F.520A
BD3 D3 1.2080
X210Cr12
X205Cr12KU SKD1 X200Cr12
Z200C12
F.5212
X210Cr12
BD6 ~D6 1.2436
BA2 A2 1.2363
X100CrMoV5-1
X100CrMoV511KU SKD12 X100CrMoV5Z
100CDV5
F5.227
X100CrMoV5
BH13 H13 1.2344
X40CrMoV5-1
X40CrMoV511KU SKD61 X40CrMoV5
Z40CDV5
F.5318
X40CrMoV5
BS1 S1 1.2550
60WCrV7
55WCrV8KU 55WC20 F.5241
45WCrSi8
BP20 P20 1.2311
40CrMnMo7
420 1.2083
X42Cr13
SUS420J2 X40Cr13
Z40C14
~BP30 1.2767
X45NiCrMo4
~42NiCrMo157 SKH51- ~Y 35NCD16
BM2 M2 1.3343
S6 502
Z85WDCV
06-05-04-02
BM42 M42 1.3247
S2-1-1-8
HS2-9-1-8 SKH59 Z110DKCWV
09-08-04-02-01
6-5-2
BW2 W2 1.2833 105MV01
BS1407 1.2002 120C2

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.