ZG20CrMo - JB /T 6402-2018

Grade	ZG20CrMo
Corresponding Standard	JB /T 6402-2018 Heavy low alloy steel castings - Technical specification
Classification	Cast Steel

ZG20CrMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^①	Cu ^①	Mo	V ^①
Minimum Value	0.17	0.2	0.5	-	-	0.5	-	-	0.45	-
Maximum Value	0.25	0.45	0.8	0.03	0.03	0.8	0.3	0.25	0.65	0.05

ZG20CrMo 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	≥460	≥245	≥18	≥30	135~180	KU2 or KU8: ≥30
Casting	Tempering	≥460	≥245	≥18	≥30		KU2 or KU8: ≥24

ZG20CrMo Corresponding Standards(Same grade name, different standards)

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