34CrNiMo6 - ISO 683-2-2016

Grade	34CrNiMo6
Corresponding Standard	ISO 683-2-2016 Alloy Steels for Quenching and Tempering
Classification	Alloy Steel

34CrNiMo6 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.3	0.1	0.5	-	-	1.3	1.3	-	0.15
Maximum Value	0.38	0.4	0.8	0.025	0.035	1.7	1.7	0.4	0.3

34CrNiMo6 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, flat material, forging; d≤16 or t≤8	Quenching and Tempering	1200~1400	≥1000	≥9	≥40
Bar, flat material, forging; 16<d≤40 or 8<t≤20	Quenching and Tempering	1100~1300	≥900	≥10	≥45		≥45
Bar, flat material, forging; 40<d≤100 or 20<t≤60	Quenching and Tempering	1000~1200	≥800	≥11	≥50		≥45
Bars, flat products, forgings; 100<d≤160 or 60<t≤100	Quenching and Tempering	900~1100	≥700	≥12	≥55		≥45
Bars, Flats, Forgings; 160<d≤250 or 100<t≤160	Quenching and Tempering	800~950	≥600	≥13	≥55		≥45
Bars, flat products, forgings, semi-finished products, rebar	Soft Annealing (+A)					≤248

1 Approximate Comparison Table Structural Alloy Steel

China	International Organization for Standardization	European Standard
GB	ISO	EN	Numerical Grade
34Cr2Ni2Mo	34CrNiMo6	34CrNiMo6	1.6582

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
34CrNiMo6	34CrNiMo6	1.6582

34CrNiMo6 Corresponding Standards(Same grade name, different standards)

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