20A - GJB 1951-1994

Grade	20A
Corresponding Standard	GJB 1951-1994 Specification for Quality Structure Steel Bars for Avication
Classification	Carbon Steel

20A Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^*	Mo ^*	Ti ^*	W ^*	V ^*
Minimum Value	0.17	0.17	0.35	-	-	-	-	-	-	-	-	-
Maximum Value	0.24	0.37	0.65	0.03	0.03	0.3	0.3	0.25	0.15	0.03	0.2	0.05

20A 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
Steel Rod	Normalizing					103~156
Steel bars①	Supply State	≥380	≥215	≥22	≥50	103~156

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

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!