Open top API 650 cylindrical welded storage tanks

Our quality control department will do inspection for details of the steel materials API 650 cylindrical welded storage tanks before delivery. We would invite the customer side to attend the inspection together. If they can not come, we will also take rich pictures for them to check. Meanwhile, we will publish inspection report and send them the PDF version. Besides, we accept any third party inspection such as SGS, BV, etc. And our quality control department will support the third party to inspect the steel materials smoothly and try our best to deliver the qualified steel materials to customers earlier.

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

The Charpy V-notch test shall be used, and the minimum impact value at the design metal temperature shall be as given in Table R-2. For subsize specimen acceptance criteria, see ASTM A20. An impact test temperature lower than the design metal temperature may be used by the API 620 welded storage tanks Manufacturer, but in such a case the impact values at the test temperature must comply with Table R-2.