Tensile strength: σb (MPa):1482
Yield Strength: σ0.2 (MPa):1232
Elongation: δ5 (%):13
Reduction Ratio: ψ (%):57
Impact Akv: αku (J/cm2):73
7.Heat Treatment Range:
900ºC oil quenching+870ºC oil quenching,200ºC tempering.
Carburizing steel class. also used as quenched and tempered steel.Hardenability is good.Small deformation in heat treatment. low-temperature toughness is good.Good maching performance.Weldingability is not so good.Usually used as to produce carburized parts and quenched parts,such as gears, bearings,worm stick, and so on.
Manufactured in high speed and high bending load working conditions of mercury shaft and connecting rod, no strong impact load gear mercury, water mercury rotor, clutch, high pressure container cover plate bolts.