5454 aluminum tube API 650 ground supported flat-bottom tanks

API 650 is constructed from carbon steel, austenitic duplex stainless steel, and API 650 ground supported flat-bottom tanks aluminium A Welding Certification is stipulated by American Society of Mechanical Engineers (ASME), Section 10. There is a required inspection, no third party. The inspection cost is the cost of the NDE.

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Heat-affected zone impact specimens shall be taken across the weld and as near the surface of the material as is practicable. The API 650 ground supported flat-bottom tanks material specimens shall be of sufficient length to locate the notch in the heat-affected zone after etching. The notch shall be cut approximately normal to the material surface to include as much heat-affected zone material as possible in the resulting fracture. Impact test specimens shall be cooled to the temperature stated in Q.22.

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