Austenitic free cutting stainless steels

Alloys or metallic compositions – Ferrous – Nine percent or more chromium containing

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420 42, 420584, C22C 3860

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active

048371084

ABSTRACT:
An austenitic stainless steel having improved free cutting properties is disclosed, which consists essentially of, on a weight ratio, C.ltoreq.0.2%. Si.ltoreq.2.0%, Mn.ltoreq.2.0%, 7.5%.ltoreq.Cr.ltoreq.30.0%, Ni.ltoreq.40.0%, 0.005%.ltoreq.Bi.ltoreq.0.50%, 0.0003%.ltoreq.B.ltoreq.0.10%, 0.002%.ltoreq.S.ltoreq.0.40%, P.ltoreq.0.02%, N.ltoreq.0.05% and/or O.ltoreq.0.005% and the balance being Fe.

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