20CrMnSiA - GJB 2151-1994

Grade	20CrMnSiA
Corresponding Standard	GJB 2151-1994 Specification for Cold-rolled Alloy Structure Steel Sheets for Aerospace
Classification	Alloy Steel

20CrMnSiA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.18	0.9	0.8	-	-	0.8	-	-
Maximum Value	0.23	1.2	1.1	0.025	0.025	1.1	0.3	0.25

20CrMnSiA Mechanical Properties

form	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
Cold rolled steel plate	Delivery Condition	490~685	≥18

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