ASTM A537 CL1 steel plate/sheet

Pressure vessel steel plate/sheet ASTM A537 CL1 need Normalized heat treatment. Boiler steel plate A537CL1 with carbon-manganese-silicon steel plate intend for fusion welded pressure vessels and structures.

For the steel plate thickness equal and under 65mm, ASTM A537 CL1 owned minimum yield strength at 345 Mpa, and tensile strength within 485-620 Mpa.

Ultrasonic examination for boiler steel plate ASTM A537 CL1 is necessary technical requirement when rolling, the end users can choose from A435/A435M, A577/A577M and A578/A578M.

A537 class 1 plate/sheet Chemical Composition:

Grade	The Element Max (%)
Grade	C	Mn	P	S	Si	Cu	Ni	Cr	Mo
A537 class 1	0.24	0.92-1.72	0.035	0.035	0.13-0.55	0.38	0.28	0.29	0.09

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

A537 class 1 plate/sheet Mechanical Property:

Grade	A537 class 1 Mechanical Property
Grade	Thickness	Yield	Tensile	Elongation
A537 class 1	mm	Min Mpa	Mpa	Min %
	-65	345	485-620	22
	65-100	310	450-585	-
	100-150	-	-	18

ASTM A573 CL 1 is the steel grade in ASTM standard. There is equal material -- SA537 CL1 steel. SA537 CLASS 1 steel is in the ASME standard. ASME SA537 CL 1 is also usually used in pressure vessel. Same as A537CL3 and SA537CL1, A537 CL 1 and SA 537 CL 1 delivery condition is also Q&T.