Type and Chemical Composition of Cast Iron Balls

Name

Cr

Mn

C

Si

S

P

Special Hi-Cr I

22-32

0.5-2.0

2.0-2.8

1.0max

0.06max

0.08max

Special Hi-Cr II

17-22

0.5-2.0

2.0-2.8

1.0max

0.06max

0.08max

Special Hi-Cr III

15-17

0.5-2.0

2.2-3.0

1.0max

0.06max

0.08max

High-Cr

11-14

0.5-2.5

2.2-3.2

1.0max

0.06max

0.08max

Medium-Cr

5-10

0.5-1.5

2.1-3.2

1.2max

0.06max

0.08max

Low-Cr

1.5-3.0

0.5-1.5

2.2-3.5

1.2max

0.06max

0.08max