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ASME standard SA543 Type B CL1 steel plate

Posted:2022-01-26 13:53:20

SA543 Type B CL1 steel plate is killed steel and shall meet the requirements of A20/A20M standard fine austenite grain size.

SA543 Type B CL1 is a quenched and tempered nickel-chromium-molybdenum alloy steel plate for pressure vessels. SA543 series steel plates are divided into two types: B and C. Each type has three types. The minimum tensile strength of type 1 is 725MPa, and the minimum tensile strength of type 2 is 795 MPa, Class 3 minimum tensile strength 620 MPa.

SA543 Type B CL1 steel plate delivery condition: quenching + tempering.

SA543 Type B CL1 steel plate executive standard: ASME standard SA-543/SA543M.

Chemical composition (finished product analysis) of SA543 Type B CL1 steel plate:

Grade	C	Mn	P	S	Si	Ni	Cr	Mo
SA543 Type B CL1	≤0.20	≤0.40	≤0.020	≤0.020	0.13-0.45	2.18-4.07	0.94-1.96	0.16-0.0.69

Mechanical properties of SA543 Type B CL1 steel plate:

Grade	Yield strength	Tensile strength	Elongation gage length is 50mm, %
SA543 Type B CL1	≥585	725-860	≥14

SA543 Type B CL1 steel plate is mainly used to manufacture the largest reactor - ethylene oxide reactor in chemical production. The strength of the steel plate is high, and the welded joints without heat treatment during the manufacturing of equipment will have large residual stress, which is easy to cause stress corrosion cracking.