Grade A983 Grade 6
Corresponding Standard ASTM A983/A983M-2006(R2021)
Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines
Classification Alloy Steel
A983 Grade 6 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo V
Minimum Value 0.28 0.15 0.4 - - 2.8 0.3 -
Maximum Value 0.35 0.4 1 0.025 0.025 3.3 0.5 0.1
A983 Grade 6 Mechanical Properties
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
≥1035 ≥830 ≥12 ≥40 302~341

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