Applied Area: 440C stainless steel ball is used in the industries of high precision and antirust: avigation, bearings, valve, petroleum facilities and so on.
Capability: It is very hard to produce 440C stainless steel ball, the heat treatment is complicated, it is easy to split, the precision must be high, it is the most rigid, HRC≧58. Its hardness is close to bearing steel ball, but it is more antirust and anticorrosive than the bearing steel ball.
Comparison: 440C stainless steel ball is more antirust and anticorrosive than 440 stainless steel ball. The frictional resistance is enhancing while the hardness is increasing.
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