Grade 11SMnPb37
1.0737
Corresponding Standard NF EN 10087-1999
Free-cutting structural steels
Classification Carbon Steel
11SMnPb37 Chemical Element Composition Content (%)
Component C Si Mn P S Pb
Minimum Value - - 1 - 0.34 0.2
Maximum Value 0.14 0.05 1.5 0.11 0.4 0.35
11SMnPb37 Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Hardness
HBW
Steel: 5≤ d ≤10 380~570
Steel: 10<d ≤16 380~570
Steel: 16 < d ≤ 40 Non-Heat Treatment 380~570 112~169
Steel: 40 < d ≤ 63 370~570 109~169
Steel: 63 < d ≤ 100 360~520 107~154

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