30CrMnSiA - GJB 2150A-2005

Grade	30CrMnSiA
Corresponding Standard	GJB 2150A-2005 Specification for hot-rolled alloy structure steel sheets and plates for avication
Classification	Alloy Steel

30CrMnSiA Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^①	S ^①	Cr	Ni ^①	Cu ^①	Mo ^②	W ^②
Minimum Value	0.28	0.9	0.8	-	-	0.8	-	-	-	-
Maximum Value	0.34	1.2	1.1	0.025	0.025	1.1	0.3	0.25	0.13	0.13

30CrMnSiA Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
≤4※	Delivery Condition	540~735	≥16	≤229
>4※	Delivery Condition	540~735	≥19	≤229
Sample*	Quenching or Tempering 880~900°C oil quenching; Tempering 500~560°C oil or water quenching	≥1080	≥10

30CrMnSiA Corresponding Standards(Same grade name, different standards)

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