Grade 12SMnPb35
ISO Numeric Designation Type 3Pb
Corresponding Standard ISO 683-9-1988
Heat-treatable steels,alloy steels and free-cutting steels-Part 9:Wrought free-cutting steels
Classification Alloy Steel
Properties Machinability
12SMnPb35 Chemical Element Composition Content (%)
Component C Si Mn P S Pb
Minimum Value - - 1 - 0.3 0.15
Maximum Value 0.15 0.05 1.5 0.11 0.4 0.35

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