30CrNiMo8 1.6580 - DIN 17200-1987

Grade	30CrNiMo8
Germany W-Nr.	1.6580
Corresponding Standard	DIN 17200-1987 Steels for Quenching and Tempering; Technical Delivery Conditions
Classification	Alloy Steel
Properties	Strength
Density	7.85 g/cm³

30CrNiMo8 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.26	-	0.3	-	-	1.8	1.8	0.3
Maximum Value	0.34	0.4	0.6	0.035	0.03	2.2	2.2	0.5

30CrNiMo8 Mechanical Properties

condition	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
Steel; All Sizes	Softening Annealing (G)					≤248
Steel; d≤16	Quenching and Tempering (V)	1250~1450	≥1050	≥9	≥40		ISO-V ≥30
Steel; 16<d≤40	Quenching and Tempering (V)	1250~1450	≥1050	≥9	≥40		≥30
Steel; 40<d≤100	Quenching and Tempering (V)	1100~1300	≥900	≥10	≥45		≥35
Steel; 100<d≤160	Quenching and Tempering (V)	1000~1200	≥800	≥11	≥50		≥45
Steel; 160<d≤250	Quenching and Tempering (V)	900~1100	≥700	≥12	≥50		≥45

1 Approximate Comparison Table Alloy Steel for Quenching and Tempering

China		Japan	International Organization for Standardization	Germany		European Standard
GB	ISC	JIS	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
30Cr2Ni2Mo	A50300	SNCM431	30CrNiMo8	30CrNiMo8	1.6580	30CrNiMo8	1.6580

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
GB	JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
30Cr2Ni2Mo	SNCM431	31CrNiMo8	30CrNiMo8	30CND8	30CrNiMo8	1.6580	3KH3M3F	823M30

30CrNiMo8 Corresponding Standards(Same grade name, different standards)

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