Chemical composition of Japanese standard high manganese steel

grade of steel

Chemical composition quality fraction (%)

C

Mn

Si

S

P

else

SCMnH1

0.9～1.3

11～4

-

≤0.05

≤0.10

-

SCMnH2

0.9～1.2

11～4

≤0.8

≤0.04

≤0.07

-

SCMnH3

0.9～1.2

11～4

0.3～0.8

≤0.035

≤0.05

-

SCMnH11

0.9～1.3

11～4

≤0.8

≤0.04

≤0.07

Cr：1.5～2.5

SCMnH21

1.0～1.35

11～4

≤0.8

≤0.04

≤0.07

Cr：2.0～3.0
Cr：0.4～0.7