SA537 Class 1 - ASME SA-537/SA-537M-2023

Grade	SA537 Class 1
Corresponding Standard	ASME SA-537/SA-537M-2023 Pressure Vessel Plates, Heat-Treated, Carbon-Manganese- Silicon Steel
Classification	Alloy Steel

SA537 Class 1 Chemical Element Composition Content (%)

	Component	C	Si	Mn ^*	P	S	Cr	Ni ^*	Cu	Mo
厚度≤1-1/2in.(40mm)	Minimum Value	-	0.15	0.7	-	-	-	-	-	-
厚度≤1-1/2in.(40mm)	Maximum Value	0.24	0.5	1.35	0.025	0.025	0.25	0.25	0.35	0.08

	Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu	Mo
厚度>1-1/2in.(40mm)	Minimum Value	-	0.15	1	-	-	-	-	-	-
厚度>1-1/2in.(40mm)	Maximum Value	0.24	0.5	1.6	0.025	0.025	0.25	0.25	0.35	0.08

* Manganese may exceed 1.35 % on heat analysis, up to a maximum of 1.60 %, and nickel may exceed 0.25 % on heat analysis, up to a maximum of 0.50 %, provided the heat analysis carbon equivalent does not exceed 0.57 % when based upon the following equation: CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15

SA537 Class 1 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤65	Normalizing	485~620	≥345	≥22
65<t≤100	Normalizing	450~585	≥310	≥22
t＞100	Normalizing	450~585	≥310	≥22

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