ASME B16.9 Butt-Welding Pipe Fittings
ASME 16.9 covers overall dimensions, tolerances, ratings, testing, and markings for factory-made wrought butt-welding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200). The term “wrought” denotes fittings made of seamless or welded pipes, tubing, plates, or forgings. Metals-Piping supplies ASME B16.9 butt-welding pipe fittings in a comprehensive range of materials covering carbon steel, alloy steel, stainless steel and non-ferrous metals. These fittings include long radius elbows, reducing elbows, long radius returns, short radius elbows, short radius 180° returns, 3D elbows, straight tees, straight crosses, reducing tees, reducing crosses, lap joint stub ends, caps, concentric reducers, and eccentric reducers. All fittings supplied shall be free of imperfections such as dents, scratches, sharp intersections(corners), pits, and creases, etc.
Codes and Regulations
ASME B16.9 butt welding pipe fittings shall be selected and used under the jurisdiction of the ASME Boiler and Pressure Vessel Code, or ASME Code for Pressure Piping.
Wall Thickness and Welding Ends
The wall thickenss may be designated in conformance with ASME B36.10 or ASME B36.19. Three types of welding ends may be furnished in accordance with ASME B16.25: square cut, plain bevel and compound bevel.