SA542 Type C Class 4a - ASME SA-542/SA-542M-2023

Grade	SA542 Type C Class 4a
Corresponding Standard	ASME SA-542/SA-542M-2023 Pressure Vessel Plates, Alloy Steel, Quenched-and- Tempered, Chromium-Molybdenum, and Chromium- Molybdenum-Vanadium
Classification	Alloy Steel

SA542 Type C Class 4a Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	B
熔炼分析	Minimum Value	0.11	-	0.3	-	-	2.75	-	-	0.9	0.015	0.2	0.001
熔炼分析	Maximum Value	0.15	0.13	0.6	0.025	0.025	3.25	0.25	0.25	1.1	0.035	0.3	0.003

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V
产品分析	Minimum Value	0.08	-	0.25	-	-	2.63	-	-	0.85	0.005	0.18
产品分析	Maximum Value	0.18	0.13	0.66	0.025	0.025	3.37	0.28	0.28	1.15	0.045	0.33

SA542 Type C Class 4a Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
585~760	≥415	L0=50mm ≥18

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