25CrMnNiTi3A - GJB 1951-1994 - H2ABC

中文版

Grade	25CrMnNiTi3A
Corresponding Standard	GJB 1951-1994 Specification for Quality Structure Steel Bars for Avication
Classification	Alloy Steel

25CrMnNiTi3A Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^*	Mo ^*	Ti	W ^*	V ^*
Minimum Value	0.22	0.2	0.8	-	-	1.2	0.9	-	-	0.06	-	-
Maximum Value	0.29	0.5	1.2	0.03	0.03	1.7	1.4	0.25	0.15	0.12	0.2	0.05

25CrMnNiTi3A Mechanical Properties

condition	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
Steel Rod	Tempering or annealing					149~269
Longitudinal specimen d=25①	First quenching 880~920°C air cooling, second quenching 820~850°C oil quenching, tempering 160~200°C water or air cooling	≥1470	≥1180	≥10	≥45	388~514	≥55

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