API 650 tank calculator

Atmospheric storage tank design per API 650 — geometry, shell, bottom, roof, wind, seismic and bill of materials.

All articles
  • Erecting the shell courses of an oil storage tank at the project site

    Oil Storage Tank Construction Steps to API 650

    A large oil tank is built at the project site. The construction steps from the foundation and bottom plates to erecting the shell, a fixed or floating roof, and the hydrotest with settlement monitoring.

    Read more
  • API 650 and API 620 standards compared on a desk

    API 650 vs API 620 in one page

    Which standard fits atmospheric fixed-roof tanks and which fits low pressure.

    Read more
  • Vacuum box with a clear window on a storage tank bottom plate weld

    Vacuum Box Test: Checking Storage Tank Bottoms for Leaks

    A tank bottom sits on the foundation and cannot be seen from below. The vacuum box finds leaks in the bottom plate welds from above, before filling.

    Read more
  • Fixed-roof oil tank designed to API 650

    Oil tank fabrication

    Safe industrial-scale storage of oil and its products

    Read more