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SA738 GrB vessel steel plate for nuclear power

SA738 GrB steel plate is American standard vessel steel plate used for nuclear power.

Delivery status and executive standard of SA738 GrB vessel steel plate:
Delivery status: quenching+tempering. Different delivery conditions can be selected according to requirements, and requirements of flaw detection standards, flaw detection levels, Z-direction performance requirements, classification society certification requirements, and special alloy elements can also be added.

Executive standard of SA738 GrB steel plate: ASME SA738/SA738M.

Chemical composition of SA738 GrB vessel steel plate (melting analysis %)

Grade C Mn P S Si Cu Ni Cr Mo Nb+Ti+V
SA738 GrB 0.20 0.90-1.50 0.008 0.005 0.15-0.55 0.35 0.60 0.30 0.30 0.08

Production process of SA738 GrB steel plate:
Converter smelting - LF refining - VD vacuum degassing - 270mm * 2100mm section continuous casting - heating - double stand rolling.

Because SA738 GrB vessel steel plate has excellent low temperature impact property and high temperature tensile property, it is widely used in nuclear power plant containment and structural modules.

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