API standard 650 ground supported tanks leg lengths
API 620 storage tanks relative standard for referenceASTM A106 Seamless Carbon Steel Pipe for High-Temperature ServiceASTM A131 Shipbuilding Structural Steel for API standard 650 ground supported tanksASTM A134 Welded Steel PipeASTM A182 Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature ServiceASTM A193 Alloy-Steel and Stainless Bolting MaterialsASTM A194 Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature ServiceASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat Exchanger TubesASTM A240 Stainless Steel Plate, Sheet, and Strip for Pressure VesselsASTM A283 Low and Intermediate Tensile Strength Carbon Steel Plates
This specification, in conjunction with API 650 Standard, prescribes minimum standards for the API standard 650 ground supported tanks design, supply fabrication, erection, and testing of field erected welded steel storage tanks complete with accessories as specified herein and as shown on attached datasheets and/or drawings.
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}Requirements for prefabrication of bottom plate of large vertical API standard 650 ground supported tanks:1. The diameter of tank bottom should be enlarged by 0.1% ~ 0.15% according to the design diameter.2. The minimum dimension of edge plate along the radius direction of tank bottom shall not be less than 700mm.3. The distance between any adjacent welds of the base plate shall not be less than 300 mm.
Both parties shall confirm the API standard 650 ground supported tanks material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the API standard 650 ground supported tanks steel plant.
