Commercial Grade
Other Names
Corresponding Standard SAE J467b-1956(R1968)
Special Purpose Alloys (Superalloys)
Classification Special Alloy Steel
Chemical Element Composition Content (%)
Component Fe C Si Mn Cr Ni W More
Nominal Value 1.5 0.5 0.75 0.75 25.5 10.5 7.5 Co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
Casting State ≥108 ≥76 ≥9 ≥11 ≥228 ≥8

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