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30 ft in diameter API650 oil tank welding of primary components

30 ft in diameter API650 oil tank welding of primary components

30 ft in diameter API650 oil tank welding of primary components

For the welding of 30 ft in diameter API650 oil tank bottom, attention should be paid to the slag removal and drying of the welding joint before welding, and there is no sediment and oil contamination in the lap joint of steel plate. The manufacturing quality and production efficiency of the central plate can be obviously improved by adopting the rolling central plate. The butt joint is used between the rolling plates to improve the installation conditions of the central plate at the bottom of the 30 ft in diameter API650 oil tank. The welding sequence of the central plate is from the center of the central plate to the surrounding.

Structural shapes of 9% and 5% nickel steel may be furnished to the chemical and physical requirements of ASTM A353, A553, or A645. Physical tests shall be in accordance with the requirements of ASTM A6.
30 ft in diameter API650 oil tank used Piping, Tubing, and Forgings
Material used for piping, tubing, and forgings shall be compatible in welding strength, and thermal expansion coefficient with the tank shell material. In addition to the specific requirements of this appendix, all piping within the limitations of 1.3.2 shall fulfill the minimum requirements of ASME B31.3.

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