Flange can be made of casting and become, it also can be made up of threaded connection or welding. Flange connection by a pair of flange, and a gasket, a mix of several bolt and nut. The gasket in between the two flange sealing surface and tighten nut, washer on the surface of the pressure after reaching a certain value will produce deformation, fill and seal surface uneven, not to join together.

Flange connection is the two pipes, fittings or equipment, fixed on a flange, a first, between the two flanges with flange gasket, bolt fastening together, complete the connection. Some pipe fittings and equipment have been bringing flange, is also belongs to the flange connection.

Future carbon steel flanges sales is expected to continue to rise, also constantly improve the production, now each big steel raw materials are sold on the tension, so now due to the needs of the market, the supply and demand are in short supply, but also need the factory to improve production technology, to improve the performance of the carbon steel flanges.