API standard 650 carbon steel tank primary seal

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.While GB50341 generally takes the weld coefficient as 0.9;When the minimum yield strength of API standard 650 carbon steel tank steel plate is greater than 390 MPa, take 0.85. The thickness of API 650 tanks is generally smaller than that of GB50341, and this difference is particularly evident in the design of large tanks, where the overall weight of the tanks varies greatly.In 2018, one of our India customers visit Zhengzhou office building and work shop to discuss carbon steel Q235B grind plate technical request. They have strict surface and thickness tolerance, and they also request UT and MT for testing for Q235B grind plate. As a result, they purchase 179 tons as trial order for first cooperation. After using the gind plate, the India customer has good comment on our API standard 650 carbon steel tank quality. Till now, we keep exporting around 100 tons per month as regularly.Generally, the snow load in the API standard 650 carbon steel tank construction area should be considered before the design and construction of the tank. The snow load in the API standard 650 carbon steel tank construction area has an impact on the tank roof design and operation, especially in the area with large snow load, the roof load of large storage tank with large diameter increases. Anti freezing, heat preservation and waterproof measures shall be taken for the additional facilities of storage tanks, such as pumps, breathing valves, flame arresters, detection instruments and thermal insulation layers.Provide special product requirements to meet the personalized needs of customers. The API standard 650 carbon steel tank company arranges production and shipment strictly according to the contract, and guarantees to supply goods according to the time agreed in the contract. Provide professional consultation: we guarantee to answer any professional and API standard 650 carbon steel tank technical questions raised by users within 1 hour; provide detailed information.