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EN 10149-2 steel chemical composition

EN 10149-2 steel chemical composition

EN 10149-2 steel grades
The steel grades S315MC, S355MC, S420MC, S460MC, S500MC and S550MC of this European Standard are alloy quality steels and the steel grades S600MC, S650MC, S700MC, S900MC and S960MC of this European Standard are alloy special steels according to EN 10020.

The requirements of EN 10149-1 shall apply.
The EN 10149-2 steel chemical composition determined by ladle analysis shall comply with the specified values of Table 1.
Table 1: Chemical composition of the ladle analysis for thermomechanically rolled steels


Designation of steel grade

C
%
max.

Mn
%
max.

Si
%
max.

P
%
max.

S
%
max.

Al total
% min.

Nb
%
max.

V
%
max.

Ti
%
max.

Mo
%
max.

B
%
max.

Steel name

Steel number

S315MC

1.0972

0.12

1.30

0.50

0.025

0.020b

0.015

0.09a

0.20 a

0.15,

-

-

S355MC

1.0976

0.12

1.50

0.50

0.025

0.020b

0.015

0.09 a

0.20 a

0.15a

-

-

S420MC

1.0980

0.12

1.60

0.50

0.025

0.015b

0.015

0.09 a

0.20 a

0.15a

-

-

S460MC

1.0982

0.12

1.60

0.50

0.025

0.015b

0.015

0.09 a

0.20 a

0.15'

-

-

S500MC

1.0984

0.12

1.70

0.50

0.025

0.015b

0.015

0.09 a

0.20 a

0.15a

-

-

S550MC

1.0986

0.12

1.80

0.50

0.025

0.015b

0.015

0.09 a

0.20 a

0.15a

-

-

S600MC

1.8969

0.12

1.90

0.50

0.025

0.015b

0.015

0.09 a

0.20 a

0.22 a

0.50

0.005

S650MC

1.8976

0.12

2.00

0.60

0.025

0.015b

0.015

0.09 a

0.20 a

0.22 a

0.50

0.005

S700MC

1.8974

0.12

2.10

0.60

0.025

0.015b

0.015

0.09 a

0.20 a

0.22 a

0.50

0.005

S900MC

1.8798

0.20

2.20

0.60

0.025

0.010

0.015

0.09

0.20

0.25

1.00

0.005

S960MC

1.8799

0.20

2.20

0.60

0.025

0.010

0.015

0.09

0.20

0.25

1.00

0.005

a The sum of Nb, V and Ti shall be max. 0.22 %.
b If agreed at the time of the order the sulphur content shall be max. 0.010 % (ladle analysis).
See Clause 11. option 12).

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