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SA738 Gr.B vessel steel plate for nuclear power plant

Posted:2021-11-09 10:12:33

1. Introduction of SA738 Gr.B nuclear power plant vessel steel plate:
SA738 Gr.B steel plate is a heat-treated steel plate for medium and low temperature pressure vessels. SA738 Gr.B vessel steel plate has good low-temperature impact performance, high-temperature tensile performance, and good welding performance. It is widely used in the third-generation AP1000 and CAP1400 nuclear power plant containment and structural modules.

2. Delivery status of SA738 Gr.B vessel steel plate for nuclear power plant: quenching and tempering.

3. The executive standard of SA738 Gr.B nuclear power plant vessel steel plate: SA738 Gr.B steel plate is American standard steel plate, and it is in accordance with the American standard ASME standard.

4. The chemical composition of SA738 Gr.B steel plate (melting analysis %):

C	Mn	P	S	Si	Cu	Ni	Cr	Mo	Nb+Ti+V
≤0.20	≤0.90-1.50	≤0.008	≤0.005	0.15-0.55	≤0.35	≤0.60	≤0.30	≤0.30	0.08

5. The process route of SA738 Gr.B steel plate:
Process route: converter smelting-LF refining-VD vacuum degassing-270mm×2100mm section continuous casting-heating-dual-stand rolling.