20CrMnTi - GJB 1220A-2008

Grade	20CrMnTi
Corresponding Standard	GJB 1220A-2008 Speification for alloy structure steel bar for artillery parts
Classification	Alloy Steel

20CrMnTi Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Ti
Minimum Value	0.17	0.17	0.8	-	-	1	-	-	0.04
Maximum Value	0.23	0.37	1.1	0.03	0.03	1.3	0.3	0.25	0.1

20CrMnTi 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=15	880°C First Quenching, 870°C Second Quenching, Oil Cooling, 200°C Tempering, Water or Air Cooling	≥1080	≥850	≥10	≥45	-	KU2 ≥55
Steel	Annealing or Tempering	-	-	-	-	≤217	-

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

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