Commercial Grade
Corresponding Standard SAE J467b-1956(R1968)
Special Purpose Alloys (Superalloys)
Classification Special Alloy Steel
Chemical Element Composition Content (%)
Component C Si Mn Cr Ni Cu Mo N More
Nominal Value 0.22 0.25 0.8 11.5 0.2 2 2.75 0.08 Fe余量
Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
ksi
Yield Point
σs
ksi
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
Oil quenching (1200 F) ≥155 ≥120 ≥17 ≥44 HRC
≥33
≥40

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