34CrNiMo6 - ISO 683-18-2014

Grade	34CrNiMo6
Corresponding Standard	ISO 683-18-2014 Heat-treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Steel Products
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 %	Hardness HBW	Impact Energy Absorption KV2 J
16＜t≤100	S.annealed +peeled (+A +SH)				≤248
5≤t≤10	S.annealed +Cold drawn (+A +C)				≤308
10＜t≤16	S.annealed +Cold drawn (+A +C)				≤298
16＜t≤40	S.annealed +Cold drawn (+A +C)				≤293
40＜t≤100	S.annealed +Cold drawn (+A +C)				≤288
16＜t≤40	Quenched and tempered and peeled (+QT+SH)	1100~1300	≥900	≥10		≥40
40＜t≤100	Quenched and tempered and peeled (+QT+SH)	1000~1200	≥800	≥11		≥45
5≤t≤10	Quenched and tempered + Cold drawn (+QT +C)	1000~1200	≥770	≥8
10＜t≤16	Quenched and tempered + Cold drawn (+QT +C)	1000~1200	≥750	≥8
16＜t≤40	Quenched and tempered + Cold drawn (+QT +C)	1000~1200	≥720	≥9
40＜t≤100	Quenched and tempered + Cold drawn (+QT +C)	1000~1200	≥650	≥10

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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