Carbon Steel Welding Neck Flange

Product Details

A Carbon Steel Welding Neck Flange is a type of pipe and refers to a flange with a neck that has a transition of a round pipe and is butt welded to the pipe. Butt welding flange is a kind of disc-shaped part, which is the most common in pipeline engineering. The flanges are used in pairs. In pipeline engineering, the butt-welding flange is mainly used for the connection of pipelines. A flange is installed, a low-pressure pipe can be used with a wire flange, and a welded flange is used for pressures above 4 kg. A sealing point is added between the two flanges, and then bolted. The flanges of different pressures are Different thicknesses and the use of different bolts. Pumps and valves, when connected to the pipe, the parts of these equipment are also made into the corresponding flange shape, also known as flange connection.


Carbon steel welding flange is not easy to deform, sealed well and widely used. It is suitable for pipelines with large fluctuation of pressure or temperature or pipelines with high temperature, high pressure and low temperature. Its advantages are cheaper price and good heat resistance.



Weld neck flange


ANSI B16.5, ASME B16.47, DIN, JIS, GB, BS etc...


Carbon steel, stainless steel, alloy steel etc.



Surface treatment

Anti-rust oil, Transparent oil ,Zinc Galvanized or as customer's requirement


Blank or as customer's requirement