A516 Gr 70 plates API Std 650 self-anchored flat-bottom steel tanks

Every customer who has visit us and witness the steel materials before delievry will be impressed by our quality control departemnt. Even not come to inspect the steel materials before delievry, our quality control departemnt will also send inspection report to the customer. For each order, no matter its quantity and value, our quality control departemnt will make strict inspection before delivery, the inspection contents include apperance, tolerance, dimension, mark, special requirements of customers, etc. To guarantee our steel materials sent to the customer is qualified.

The specifications used in the design of large oil tanks, API Std 650 self-anchored flat-bottom steel tanks mainly include American Petroleum Institute Standard API 650, Japanese Industrial Standard JIS B8501, British Industrial Standard BS2654 and Chinese National Standard GB50341 from a global perspective. The formulas used in each specification are based on the hoop stress in the membrane theory. Each specification is based on the performance characteristics of materials and the construction technology level of their respective countries to determine the allowable stresses and weld coefficients. Therefore, the calculation results of tank wall thickness of API Std 650 self-anchored flat-bottom steel tanks with the same volume are sometimes quite different according to different specifications.

API 620 storage tanks relative standard for referenceAPI Spec 5L, Specification for Line PipeAPI RP 520, Sizing, Selection, and Installation of Pressure-relieving Devices in Refineries, Part II—InstallationASME B31.3, Chemical Plant and Petroleum Refinery Piping (ANSI/ASME B31.3) ASME B36.10M, Welded and Seamless Wrought Steel Pipe (ANSI/ASME B36.10) ASME B96.1, Welded Aluminum-Alloy Storage Tanks (ANSI/ASME B96.1)ASTM A36 Structural Steel for API Std 650 self-anchored flat-bottom steel tanksASTM A53 Zinc-Coated Welded and Seamless Pipe