18MnMoNb 20MnMoNb - JB /T 6396-2006 - H2ABC

中文版

Grade	18MnMoNb
Other Names
Corresponding Standard	JB /T 6396-2006 Specification for The Heavy Alloy Structural Steel Forings
Classification	Alloy Steel

18MnMoNb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Nb
Minimum Value	0.16	0.17	1.2	-	-	-	-	-	0.45	0.02
Maximum Value	0.23	0.37	1.5	0.035	0.035	0.3	0.3	0.2	0.6	0.045

18MnMoNb Mechanical Properties

	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
≥500	Normalizing + Tempering	≥510	≥315	≥14	≥40	156~207	≥39
100~300	Tempering	≥635	≥490	≥15	≥45	196~255	≥47
301~500	Tempering	≥590	≥440	≥15	≥45	176~241	≥47
501~800	Tempering	≥490	≥345	≥15	≥45	147~207	≥39

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