Commercial Grade
Corresponding Standard SAE J467b-1956(R1968)
Special Purpose Alloys (Superalloys)
Classification Special Alloy Steel
Chemical Element Composition Content (%)
Component Fe C Si Mn Cr Mo Ti Zr B Co Al More
Nominal Value 0.75 0.07 0.1 0.1 19.75 4.45 3 0.04 0.005 13.5 1.4 Ni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
Solution heat treatment, stabilization, precipitation ≥185 ≥115 ≥25 ≥20 HRC
≥36

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