304 316 wafer butt weld flanges

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A butt-weld flange is a pipe fitting with a neck and a circular tube transition structure, which is joined to pipes by welding; it is primarily used in high-pressure, high-temperature, or medium-sensitive piping systems. Its trumpet-shaped transition neck design keeps the weld seam away from the sealing surface, which helps reduce welding deformation and improve sealing performance; it is suitable for pressure ratings ranging from PN2.5MPa to PN400 and beyond. The materials for these flanges include over 20 types such as carbon steel, stainless steel, and nickel alloys, and the production processes fall into four categories: forging, casting, cutting, and rolling. Forged flanges are often used in high-stress applications due to their excellent mechanical properties ； Cast flanges are suitable for the production of low-cost, complex components. The products must undergo quality control procedures such as ultrasonic testing and post-weld heat treatment, and must comply with various technical specifications including those set by the Ministry of Chemical Industry (HG/T) and national standards (GB/T). Contact number: 15076801731, Manager Wang