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Butt welding flange high pressure

Butt welding flange high pressure

Welding flanges are generally made by forging or forging. When made of steel plate or section steel, the following requirements must be met: 1. The butt welding flange should be ultrasonically inspected without delamination defects; 2. It should be cut into strips along the rolling direction of the steel, and bent and welded into a ring , and make the surface of the steel form a ring cylinder. Steel plates shall not be directly machined into welded neck flanges; 3. The butt welds of the rings shall be full-penetration welds; Ultrasonic flaw detection, and the radiographic flaw detection meets the II requirements of JB4730, and the ultrasonic flaw detection meets the I level requirements of JB4730.Weld Neck Flange       Material     Carbon steel ASTM A105, A350 LF1, LF2, LF3, LF6, CL1/CL2,; A694 F52, F60, F65, F70;…