20MnNiMo - NB /T 47008-2017

Grade	20MnNiMo
Corresponding Standard	NB /T 47008-2017 Carbon and alloy steel forgings for pressure equipment
Classification	Alloy Steel

20MnNiMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	0.17	0.15	1.2	-	-	-	0.4	-	0.45	-
Maximum Value	0.23	0.4	1.5	0.015	0.008	0.3	1	0.2	0.6	0.05

20MnNiMo Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤500	Q+T (Tempering Temperature ≥ 620°C)	620~790	≥450	≥16	-20°C ≥47
t≤500			≥420
			≥405
			≥395
			≥385
			≥380
			≥370
			≥355
			≥335

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!