API standard 650 duplex stainless steel tanks EN specifications plates

Tanks which are designed following rules and guidelines of API 650 are API 650 tanks. API 650 API standard 650 duplex stainless steel tanks is the governing code for Welded tanks for Oil storage normally operating in the atmospheric pressure range. The code API 650 provides guidelines for design, fabrication, material, erection, and inspection of welded vertical and cylindrical storage tanks. Such API standard 650 duplex stainless steel tanks Tanks must be above ground with a closed or open top.

Welding of Large Steel Storage Tank Primary Components
a)Longitudinal and circumferential shell joints and joints that connect the API standard 650 duplex stainless steel tanks annular bottom plates together.
b)Joints that connect sections of compression rings and sections of shell stiffeners together. Backup bars may be used for these joints with complete penetration and complete fusion detail.
c)Joints around the periphery of a shell insert plate.
d)Joints that connect the shell to the bottom, unless a method of leak checking is used (see Q.8.2.1).

Atmospheric API standard 650 duplex stainless steel tanks inspection includes annual inspection and comprehensive inspection. Annual inspection is an inspection during operation to ensure the safety of atmospheric storage tanks during the overhaul period, at least once a year. Comprehensive inspection is a more comprehensive inspection of atmospheric storage tanks according to a certain inspection cycle. The inspection content of metal atmospheric API standard 650 duplex stainless steel tanks includes the safety management of the storage tank, the inspection of the tank body and its operating conditions, etc.

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