API 650 stainless and carbon steel tank EN specifications plates

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

The horizontal projection of the roof plate within the compression-ring region is 4.9 x 0.866 = 4.25 in., which fulfills the requirement of API 620 tank standard 5.12.5.1. The required area and horizontal projection can be provided by any of the standard angles listed in Table F-3.
Any of these angles may be used in accordance with the details of Figure 5-6, detail a or b, but if details c, h, or i in Figure 5-6 were intended, the net area of the angle must be calculated by deducting the area expected to be lost by corrosion from that part of the angle surface that is exposed to the interior of the tank.

Supply covers for API 650 stainless and carbon steel tank connections specified with the service covers remaining in place following tests. For API 650 tank connections not specified to be supplied with service covers, the test covers may be removed after testing.