API standard 650 flat-bottom steel tanks overturning moment

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.
API standard 650 flat-bottom steel tanks 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.

Fabricated to API Standard 650 Welded Tanks for Oil Storage Shop Assembled API standard 650 flat-bottom steel tanks storage tanks, these tanks are commonly used at oil and natural gas terminals, API standard 650 flat-bottom steel tanks processing plants, and midstream facilities located along pipelines at the pumping, compression, or metering stations. API 650 storage tanks are designed and fabricated considering operating pressures up to 2.5 PSIG, corrosion allowance, wind loading, and seismicity.

BBN had provided API standard 650 flat-bottom steel tanks Hardox plates for more than 15 years for widely applied in coal mining machinery, cement equipment, road construction machinery, engineering machinery, dump trucks, metallurgical area and port fields. In 2016,we brought our customer to visit our API standard 650 flat-bottom steel tanks NM400 steel plate producing line and our Shanghai warehouse for 30000 tons plate and structure. As a result, Our client purchased 500 tons NM 400 as first order, which is shipped by 3 times. In future, BBN will always guarantee that all the delivery condition for Hardox plate provided will be with quenching and tempering, which is the best delivery type according GBT 24186 standard.

As we know, the vertical metal tank, API standard 650 flat-bottom steel tanks is welded by many components, and the welding quality of each component determines the later use effect of the API standard 650 flat-bottom steel tanks. Professional API standard 650 flat-bottom steel tanks manufacturers should have a set of professional skills in the welding process of API standard 650 flat-bottom steel tanks. Key points for weld inspection of vertical metal tank, API standard 650 flat-bottom steel tanks:
1. It is strictly forbidden to paint the welds before passing the inspection.
2. Visual inspection shall be carried out for welds.
3. NDT shall be carried out on the weld.

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