A735 Class 4 - ASTM A735/A735M-2012

Grade	A735 Class 4
Corresponding Standard	ASTM A735/A735M-2012 Standard Specification for Pressure Vessel Plates, Low-Carbon Manganese-Molybdenum-Columbium Alloy Steel, for Moderate and Lower Temperature Service
Classification	Alloy Steel

A735 Class 4 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cu	Mo	Nb
Thickness≤16mm	Minimum Value	-	-	1.2	-	-	0.2	0.23	0.03
Thickness≤16mm	Maximum Value	0.06	0.4	1.9	0.025	0.025	0.35	0.47	0.09

	Component	C	Si	Mn	P	S	Cu	Mo	Nb
Thickness＞16mm	Minimum Value	-	-	1.5	-	-	0.2	0.23	0.03
Thickness＞16mm	Maximum Value	0.06	0.4	2.2	0.025	0.025	0.35	0.47	0.09

A735 Class 4 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
655~790	≥550	≥18

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