Hunan Steel Industrial Zone, No.9 Xiangfu Road, Yuhua District, Changsha, China
The materials of butt welding pipe fittings could be carbon steel, stainless steels or alloy steels and other alloys like the nickel-base alloy, titanium alloy. In ASME/ANSI standard, carbon steel material butt welding pipe fitting is A234 WPB pipe fittings or ASTM A860 WPHY pipe fittings.
The butt welding pipe fittings could be seamless or welded in body.
The seamless butt welding fitting means there is no welding seam on the body of the fitting when manufacturing, it is usually produced from the seamless steel pipes. The welded butt welding pipe fitting means there is a welding seam on the body of the fitting when manufacturing, usually, it is produced from the welded pipes or formed steel plates.
Commonly the butt welding pipe fittings Nominal size more than 26 inches are welded butt welding pipe fittings, and smaller butt welding fittings are seamless one.