What About the Mechanical Properties of AISI.4340

Japanese Name: SNCM439; Chinese Name: 40CrNiMoA; Germanic Name: 36NiCrMo4

English	Intensity of Tension	Yield Stress	Tensile Stretch	Percentage of Area Reduction	Impact Absorbing Energy	Hardness
Mark	σb	σs	δs	ψ	Aku2	HBS
Unit	/ Mpa	/ Mpa	/ (%)	/ (%)	/ J
Value	≥980	≥835	≥12	≥55	≥78	≤269

Chief Engineer Office / Shanghai Omega Machinery Co., Ltd