18CrMn2MoBA - GJB 2151-1994

Grade	18CrMn2MoBA
Corresponding Standard	GJB 2151-1994 Specification for cold-rolled alloy structure steel sheets for aerospace
Classification	Alloy Steel

18CrMn2MoBA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	B
Minimum Value	0.15	0.17	1.6	-	-	1	-	-	0.45	0.0005
Maximum Value	0.21	0.37	1.9	0.025	0.025	1.3	0.3	0.25	0.6	0.0035

18CrMn2MoBA Mechanical Properties

form	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
Cold rolled steel plate	Delivery Condition	440~640	≥20	≤217
sample	910~930°C Normalizing, Air Cooling, 350~420°C Tempering, Air Cooling	≥1080	≥8

18CrMn2MoBA Corresponding Standards(Same grade name, different standards)

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