name:cast grinding balls

1)high chrome cast grinding balls

 Diameter:8-130mm

 Hardness:58HRC min

 Microstructure:M+C

 Chemical Compsoition (%)

 a)C:1.8-3.3

 b)Si:1.2 max

 c)Mn:2.5 max

 d)Cr:10-28

 e)Mo:1.5 max

 f)P:0.08 max

 g)S:0.08 max


2)low chrome cast grinding balls

 Diameter:8-150mm

 Hardness:46-52HRC

 Microstructure:P+C

 Chemical composition (%)

 a)C:2.2-3.5

 b)Cr:0.3-3.0

 c)Mn:0.3-1.5

 d)Si:0.5-1.5

 e)Mo:<1.0

 f)P:<0.1

 g)s:<0.1


the above specification can be changed according to the customer's demand