Chemical composition
Carbon.~
Silicon.~
Manganese.~
Allowable residual content of sulfur
Allowable residual content of phosphorus
Chromium.~
Nickel.～
Allowable residual content of copper
Mechanical properties
Tensile strength&()
Yield strength&()
Elongation&(%)
Reduction of area&(%)
Impact power
Impact toughness value&
Hardness
Metallographic structure
Heat treatment specification: quenching for the first time at ℃, second time at ℃ , water cooling, oil cooling tempering ℃, water cooling, air cooling.
Supply high quality 12CRNI2 structural steel round steel with excellent quality