Grade 38CD4
Corresponding Standard NF A 35-556-1984
Steel for Threaded Fasteners for Structural and Engineering Purposes
Classification Alloy Steel
38CD4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.35 0.1 0.6 - - 0.9 0.15
Maximum Value 0.41 0.4 0.9 0.035 0.035 1.2 0.25
38CD4 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Bar, Rod, Wire; d≤16 Heat Treatment State 1130~1330 ≥910 ≥9
Bar, Rod, Wire; d>16 Heat Treatment State 1030~1230 ≥830 ≥9
38CD4 Corresponding Standards(Same grade name, different standards)

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