20CrNi A40202 - GB /T 3077-2015

20CrNi Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.17	0.4	-	-	0.45	1	-	-
Maximum Value	0.23	0.37	0.7	0.03	0.03	0.75	1.4	0.3	0.1

20CrNi 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	≥785	≥590	≥10	≥50	≤197	≥63

Approximate Comparison Table Structural Alloy Steel

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

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