Large API Std 650 carbon steel tank

As we know, the vertical metal tank, API Std 650 carbon steel tank is welded by many components, and the welding quality of each component determines the later use effect of the API Std 650 carbon steel tank. Professional API Std 650 carbon steel tank manufacturers should have a set of professional skills in the welding process of API Std 650 carbon steel tank. Key points for weld inspection of vertical metal tank, API Std 650 carbon steel tank:
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.

Welding of Large Steel storage tank Primary Components
a)Longitudinal and circumferential shell joints and joints that connect the API Std 650 carbon steel tank annular bottom plates together.
b)Joints that connect sections of compression rings and sections of shell stiffeners together. Backup bars may be used for these joints with complete penetration and complete fusion detail.
c)Joints around the periphery of a shell insert plate.
d)Joints that connect the shell to the bottom, unless a method of leak checking is used (see Q.8.2.1).

The calculated thickness of the above-mentioned wall panels required by the hydrostatic pressure is also It API Std 650 carbon steel tank should be increased by the same ratio, unless special analysis is performed to determine the seismic overturning moment and the corresponding stress at the bottom of the wall of each layer of API 650 tank.