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Type 440C Stainless

(UNS S44004)

Single Figures are Maximums
0.95/1.20 C, 1.00 Mn, 1.00 Si, 16.00/18.00 Cr, 0.75 Mo, Bal. Fe

Attains highest hardness of any stainless (about Rockwell C 60). Provides good corrosion resistance. Has been used principally in bearing assemblies, including bearing balls and races.


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