20CrNi3 A42202 - GB /T 3077-2015

Grade	20CrNi3
China ISC	A42202
Corresponding Standard	GB /T 3077-2015 Alloy structure steels
Classification	Alloy Steel
Properties	Strength Low-Temperature Toughness Carburizing Ability
Density	7.88 g/cm³

20CrNi3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.17	0.3	-	-	0.6	2.75	-	-
Maximum Value	0.24	0.37	0.6	0.03	0.03	0.9	3.15	0.3	0.1

20CrNi3 Mechanical Properties

diameter d mm	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
d=25	Quenching + Tempering	≥930	≥735	≥11	≥55	≤241	≥78

Approximate Comparison Table Structural Alloy Steel

20CrNi3 Corresponding Standards(Same grade name, different standards)

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