51CrMnV A25513 - GB /T 1222-2025

51CrMnV Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	V
Minimum Value	0.47	0.17	0.7	-	-	0.9	-	-	0.1
Maximum Value	0.55	0.37	1.1	0.025	0.02	1.2	0.35	0.2	0.25

51CrMnV Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Quenched in oil at 850±20°C and tempered at 450±50°C	≥1350	ReL ≥1200	≥6	≥30

Approximate Comparison Table Spring Steel 1

51CrMnV Corresponding Standards(Same grade name, different standards)

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