API Std 650 stainless and carbon steel tank designed for seismic forces
Changes in Tank ShapeIf in any of the foregoing tests there is an excessive rise of the bottom of the tank around the boundary of contact with grade, or off its foundations, or if any of the specified conditions of test loading cause other appreciable changes in the shape of the tank, the design shall be reviewed and means shall be provided in the tank for holding the shape within permissible limits under all conditions of loading,API Std 650 stainless and carbon steel tank. Additional TestsThe tests prescribed in API 620 tank 7.18 are believed to be sufficient for most tanks constructed according to these rules; if, in the opinion of the designer, additional tests are needed to investigate the safety of a tank under certain other conditions of loading, as determined from the design computations, these tests shall be made on the tank involved in addition to the tests specified in this standard.
API 650 internal floating roof oil tank executive standard: domestic design standard: GB50341-2003 "Vertical cylindrical steel welded oil tank design code"; domestic construction standard: GB50128-2005 "vertical cylindrical steel welded oil tank" Construction and Acceptance Specification; API Std 650 stainless and carbon steel tank Foreign design standard: API650-2007 "Standard for Welded Steel Petroleum storage tanks."
As we know, the vertical metal tank, API Std 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 Std 650 stainless and carbon steel tank. Professional API Std 650 stainless and carbon steel tank manufacturers should have a set of professional skills in the welding process of API Std 650 stainless and carbon steel tank. Key points for weld inspection of vertical metal tank, API Std 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.
