API Std 650 duplex stainless steel tanks size

The insert plate weld shall not cross any shell seams and shall be at least the greater of 10 times the shell thickness or 12 in. from any other weld in the API Std 650 duplex stainless steel tanks shell including shell seams, shell-to-bottom weld or attachment welds. The butt weld around the periphery of the plate shall be examined over 100% of its length by both liquid penetrant method and radiographic method. The liquid penetrant examination is required on the root pass, on the back-gouged surface, and on the inside and outside finished weld surfaces. Additionally, the weld shall be vacuum box leak tested.

This standard establishes minimum requirements for API 650 tank material, API Std 650 duplex stainless steel tanks design, fabrication, erection, and inspection for ertical. aboveground，closed- and open-top.

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Personnel organization before the construction of the API Std 650 duplex stainless steel tanks:
The company shall select technical personnel, quality inspectors and material personnel with organizational ability and construction management experience to participate in the API Std 650 duplex stainless steel tanks project construction. The construction personnel shall arrive at the construction site before the designated commencement date, investigate the construction site, build construction facilities, plan the construction steps, and analyze the potential safety hazards during operation.

Our company will accept the product quality objection registration record, pass it to the API Std 650 duplex stainless steel tanks production unit and relevant departments, and timely coordinate the supervision of product API Std 650 duplex stainless steel tanks quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.