ZG20Mn - JB /T 6402-2018

Grade	ZG20Mn
Corresponding Standard	JB /T 6402-2018 Heavy low alloy steel castings - Technical specification
Classification	Cast Steel

ZG20Mn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	Ni	Cu ^①	Mo ^①	V ^①
Minimum Value	0.17	-	1	-	-	-	-	-	-	-
Maximum Value	0.23	0.8	1.3	0.03	0.03	0.3	0.8	0.25	0.15	0.05

ZG20Mn Mechanical Properties

form	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
Casting	Normalizing + Tempering	≥495	≥285	≥18	≥30	≥145	KU2 or KU8: ≥39
Casting	Tempering	500~650	≥300	≥22	-	150~190	KV2 or KV8: ≥45

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