The flange is a part that connects the pipe to the pipe and the valve, often installed on the pipe ends. It is also used as a flange on the inlet and outlet of the devices, and the connection between the two devices is a part that connects the pipes. It is an accessory product of the pipeline. From the perspective of production technology, flanges can be mainly divided into forged flanges and cast flanges.
Forged flange is a kind of product with good mechanical properties in flange products. Its raw material is generally tube blank. The defects such as segregation and looseness are eliminated in the process of continuously hammering. Both prices and mechanical properties are higher than ordinary cast flanges.
The main materials for forged flanges are carbon steel, alloy steel and stainless steel. The main standards are Chinese standard, American standard, German standard, Japanese standard. The main anti-corrosion treatments are oiling and galvanizing. The forged flanges have good pressure and temperature resistance.
Forged flanges generally have lower carbon content than cast flanges and are less prone to rust. Forgings have better streamlined shape, denser structure and better mechanical properties than cast flanges. Casting flanges have less accurate shape and size, and casting has inherent risks of defects such as pores, pinholes.www.morayshaft.com