A841 Grades C Class 1 - ASTM A841/A841M-2017

Grade	A841 Grades C Class 1
Corresponding Standard	ASTM A841/A841M-2017 Steel Plates for Pressure Vessels, Produced by ThermoMechanical Control Process (TMCP)
Classification	Alloy Steel

A841 Grades C Class 1 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb
t≤40mm	Minimum Value	-	0.15	0.7	-	-	-	-	-	-	0.006	-	-
t≤40mm	Maximum Value	0.1	0.5	1.6	0.03	0.015	0.25	0.25	0.35	0.08	0.02	0.06	0.06

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb
t＞40mm	Minimum Value	-	0.15	1	-	-	-	-	-	-	0.006	-	-
t＞40mm	Maximum Value	0.1	0.5	1.6	0.03	0.015	0.25	0.25	0.35	0.08	0.02	0.06	0.06

A841 Grades C Class 1 Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤65	485~620	≥345	(50mm) ≥22
t＞65	450~585	≥310	≥22

L0-gauge lengh

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