20MnMo - NB /T 47008-2017

Grade	20MnMo
Corresponding Standard	NB /T 47008-2017 Carbon and Alloy Steel Forgings for Pressure Equipment
Classification	Alloy Steel

20MnMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.15	1.1	-	-	-	-	-	0.2
Maximum Value	0.23	0.4	1.4	0.025	0.01	0.3	0.3	0.2	0.35

20MnMo 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≤300	Q+T (Tempering Temperature ≥ 620°C)	530~700	≥370	≥18	0°C ≥47
300<t≤500	Q+T (Tempering Temperature ≥ 620°C)	510~680	≥350	≥18	0°C ≥47
500<t≤850	Q+T (Tempering Temperature ≥ 620°C)	490~660	≥330	≥18	0°C ≥47
t≤300			≥340
			≥320
			≥305
			≥295
			≥285
			≥275
			≥260
			≥240
300<t≤500			≥325
			≥305
			≥290
			≥280
			≥270
			≥260
			≥245
			≥225
500<t≤850			≥310
			≥295
			≥280
			≥270
			≥260
			≥250
			≥235
			≥215

20MnMo Corresponding Standards(Same grade name, different standards)

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