SA841 Grade A Class 1 - ASME SA-841/SA-841M-2023 - H2ABC

中文版

Grade	SA841 Grade A Class 1
Corresponding Standard	ASME SA-841/SA-841M-2023 Steel Plates for Pressure Vessels, Produced by Thermo- Mechanical Control Process (TMCP)
Classification	Alloy Steel

SA841 Grade A Class 1 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Nb	Al
t≤40mm	Minimum Value	-	0.15	0.7	-	-	-	-	-	-	-	-	0.02
t≤40mm	Maximum Value	0.2	0.5	1.35	0.03	0.03	0.25	0.25	0.35	0.08	0.06	0.03	-

	Component	C	Si	Mn	P	S	Cr	Ni	Mo	V	Nb	Al
t＞40mm	Minimum Value	-	0.15	1	-	-	-	-	-	-	-	0.02
t＞40mm	Maximum Value	0.2	0.5	1.6	0.03	0.03	0.25	0.25	0.08	0.06	0.03	-

SA841 Grade A Class 1 Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤40	485~620	≥345	L0=50mm：≥22 L0=200mm: ≥18
40＜t≤65	485~620	≥345	L0=50mm：≥22 L0=200mm: ≥18
t＞65	450~585	≥310	L0=50mm：≥22 L0=200mm: ≥18

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