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ASTM A128 / A128M-1998 for High Manganese Cast Steel

High manganese steel is the carbon content of 0.9% to 1.3%, manganese content of 11.0% to 14.0% of the cast steel, and it has good toughness and wears resistance. High manganese steel castings are widely used in the engineering machinery and, mining machinery etc

This is American ASTM A128 standard and UNS system of austenitic high manganese cast steel.

Steel number and chemical analysis of austenitic high manganese cast steel (mass fraction) (%)

Steel number

C

Si

Mn

P

Cr

Ni

Mo

ASTM

UNS

A

J91109

1.05~1.35

≤1.00

≥11.0

0.07

B-1

J91119

0.9~1.05

≤1.00

11.5~14.0

0.07

B-2

J91129

1.05~1.2

≤1.00

11.5~14.0

0.07

B-3

J91139

1.12~1.28

≤1.00

11.5~14.0

0.07

B-4

J91149

1.2~1.35

≤1.00

11.5~14.0

0.07

C

J91309

1.05~1.35

≤1.00

11.5~14.0

0.07

1.5~2.5

D

J91459

0.7~1.3

≤1.00

11.5~14.0

0.07

3.0~4.0

 

E-1

J91249

0.7~1.3

≤1.00

11.5~14.0

0.07

0.9~1.2

E-2

J91339

1.05~1.45

≤1.00

11.5~14.0

0.07

1.8~2.1

F

J91340

1.05~1.35

≤1.00

6.0~8.0

0.07

0.9~1.2

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