A butt welding pipe fitting means a pipe fitting which has the connecting end for butt welding(bw).Hebei Haihao Group have more than 30 years production experience about the butt welding pipe fittings products,our butt welding pipe fitting products as follows:

pipe elbows (45/90/180 degree elbow,long radius elbow,short radius elbow),
pipe tees (equal tee,reducing tee,lateral tee,barred tee,split tee),
hot induction bends (1.5D,2D,3D,5D,7D bend),
pipe reducers (concentric reducer,eccentric reducer),
pipe caps,paddles,stub ends,pipe crosses etc.

Carbon steel butt weld pipe fittings

The commonly standard of butt welding pipe fittings  is ANSI/ASME B16.9 and ANSI/ASME B16.28,the other standards also available:DIN,EN 10253,JIS,MSS SP-43,MSS SP-75,GOST etc.We also manufacture the butt welding pipe fittings as per client’s requirements.

The raw material of butt welding pipe fittings are made from steel pipes and steel plate,the materials 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.

To fulfill each requirement of customers and to meet with international specifications and dimensional standards, we follow stringent quality control.The butt welding pipe fitting tolerance within the scope of the following:

Butt Welding Pipe Fitting General:

Cross sectional tolerances for all butt welding pipe fittings (ASME/ANSI B16.9 and B16.28)

Alignment tolerances are concerned with the way that the ends of a fitting are cut. Exaggerated distortions are shown for clarity in the diagram below.

Butt Welding Pipe Fitting Draw

Alignment tolerances (ASME/ANSI B16.9 and B16.28)

Tolerances for Specific Fittings

Dimensional tolerances for elbows and returns (ASME/ANSI B16.9 and B16.28):

Dimensional tolerances for elbows and returns (ASME/ANSI B16.9 and B16.28)

Dimensional tolerances for reducers, caps and stub ends (ASME/ANSI B16.9):

Dimensional tolerances for reducers caps and stub ends

If you have any requirements about the butt welding pipe fittings, welcome to contact us.We also manufacture forged pipe fittings,pipe flanges,steel pipes according to international standards or customer’s requirements.(pipe fittings standard data)