Chromium Steel

DURMAT®

(FD)

C

Si

Mn

Cr

Ni

Mo

Nb

V

Ti

Fe

+

Hardness

4009

0.12

0.8

1.2

14.5

+

+

Bal.

300-360

HB

4015

0.08

0.8

1.2

17.5

Bal.

220-240

HB

4028

0.3

0.8

1.2

14

0.4

Bal.

46-48

HRC

4115

0.2

0.8

1.2

17

0.4

1

Bal.

42-44

HRC

4122

0.4

0.8

1.2

17

0.4

1

Bal.

48-51

HRC

4122 Nb

1.2

0.8

1.2

17

1

8

0.3

Bal.

48-51

HRC

4351 N OA

0.05

0.9

1.1

14

5

0.75

Bal.

N+

38-42

HRC