The new type of high efficiency forging steel ball. This kind steel ball is one of our major products, it's major character is that: high hardness, no breakage, no wearing, lower price. It is used in cement plants, mines, power stations etc.
Hardness: surface hrc 55-60 core hrc 50-55 breakage rate<1%.
Chemical composition:c0.5-0.85 mn0.6-1.2 si0.15-0.37 cr<0.25 s<0.04 p<0.04.
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