Grade 70Mn 4
Corresponding Standard ISO 683-17-2014
Heat-Treated Steels, Alloy Steels and Free-Cutting Steels - Part 17: Ball and Roller Bearing Steels
Classification Bearing Steel
70Mn 4 Chemical Element Composition Content (%)
Component C Si Mn P S Cu Al O
Minimum Value 0.65 - 0.8 - - - - -
Maximum Value 0.75 0.4 1.1 0.025 0.015 0.3 0.05 0.002
70Mn4 Corresponding Standards(Same grade name, different standards)

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