stainless steel welding neck flange  

The butt welding flange is a kind of pipe fittings. The butt welding flange is also called the split flange, which refers to the flange with the transition between the neck and the round pipe and the butt welding connection with the pipe. Flanges are the parts that connect pipes to each other and to the ends of the pipes. There are holes in the flange, and the bolts make the two flanges tightly connected. Butt welding flanges and their gaskets and fasteners are collectively referred to as flange joints. Flange joints are an indispensable part in equipment and equipment components, as well as in pipeline design and fittings and valves.       Material     Carbon steel ASTM A105, A350 LF1, LF2, LF3, LF6, CL1/CL2,; A694 F52, F60, F65, F70; A516 Gr. 60, 70; BS-EN 10222-2 P245GH, P280GH; EN10222-4 P355NH,…