Stainless steel ball
52 - 55 HRc
Spheric-Trafalgar
Balls of theis material have a lower chrome content than 440C, and are used in application where the more rigid corrosion resistance requirements can be relaxed. They have fair resistance to fresh water, steam, oil gasoline, blood, perspiration, alcohol and food environment. However will not pass 40 hours salt spray test.
International Equivalents
AISI 420, JIS SUS 420, JI X20 CR13, Z40 C13, EN56D, Wks 1.4034
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