40CrMoV - NB /T 20008.12-2010

Grade	40CrMoV
Corresponding Standard	NB /T 20008.12-2010 other material for pressurized water reactor nuclear power plants-Part 12: Forged or rolled bars for class 1,2,3 bolts and nuts
Classification	Alloy Steel

40CrMoV Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^①	S ^①	Cr	Mo	V
Minimum Value	0.36	0.2	0.45	-	-	0.8	0.5	0.25
Maximum Value	0.44	0.35	0.7	0.025	0.015	1.15	0.65	0.35

40CrMoV Mechanical Properties

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
Grade 1 Equipment and Bolt Bar; d≤65	865~1065	≥720	≥14	≥50	248~352	≥60
Grade 1 Equipment and Bolt Bar; 65<d≤105	790~990	≥655	≥14	≥50	248~352	≥60
Grade 1 Equipment and Bolt Bar; 105<d≤180	690~890	≥585	≥16	≥50	248~352	≥60
Grade 2, 3 equipment bars; d≤65	865~1065	≥720	≥14		248~352	≥40
Grade 2, 3 equipment bars; 65<d≤105	790~990	≥655	≥14		248~352	≥40
Grade 2, 3 equipment bars; 105<d≤180	690~890	≥585	≥16		248~352	≥40

40CrMoV Corresponding Standards(Same grade name, different standards)

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