Commercial Grade
Corresponding Standard SAE J467b-1956(R1968)
Special Purpose Alloys (Superalloys)
Classification Special Alloy Steel
Density 8.05 g/cm3
Chemical Element Composition Content (%)
Component Fe C Si Mn Cr Co
Nominal Value 20.5 0.08 0.75 0.65 28 50
Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
ksi
Yield Point
σs
ksi
Elongation or Extension Rate
δ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
Casting State ≥78 ≥46 ≥8 HV
≥250
≥36

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