75 ft in diameter API620 oil tank butt welds gamma rays test

75 ft in diameter API620 oil tank butt welds gamma rays test

Q370R Pressure vessel steel plate chemical composition(%)
C≤0.18 Si≤0.55 Mn:1.20-1.60 P≤0.025 S≤0.015 Nb:0.015-0.050
GB 713 Q370R steel mechanical property
Yield strength Mpa:340-370 Tensile strength Mpa:520-630
75 ft in diameter API620 oil tank boiler plate specification
Thickness:6~150mm
Width:1500~4020mm
Length:3000~25000mm"

Test plates shall be welded using the same qualified welding procedure and electrodes that are required for the tank shell plate joints. The API 620 steel storage tank test plates need not be welded as an extension of the tank shell joint but shall be welded in the required qualifying positions. One test weld shall be made on a set of plates from each specification and grade of 75 ft in diameter API620 oil tank plate material, using a thickness that would qualify for all thicknesses in the shell. Each test welded of thickness t shall qualify for plate thicknesses from 2t down to t/2, but not less than 5/8 in. For plate thicknesses less than 5/8 in., a test weld shall be made for the thinnest shell plate to be welded; this test weld will qualify plate thicknesses from t up to 2t.

The temperature requirements of the API 650 oil storage tank area are closely related to the evaporation loss, energy loss, 75 ft in diameter API620 oil tank storage and storage platform tank materials and the selection of detection instruments, or the temperature of the API 650 oil storage tank area. The cost of storage has a direct impact.

The steel plate, steel pipe and other steel materials are the important material in the material engineers. Our company will provide the high quality the steel plate, steel pipe and other steel materials for you. We are exported the steel plate, steel pipe and other 75 ft in diameter API620 oil tank steel materials to the customers from USA, South America, Europe, Africa etc. If we can have the good cooperation together, you will be very welcome to be our agent in your local market. Let’s work together!

API 620 welded storage tanks design

API 650 oil steel storage tanks construction

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