Forged pipe fittings, produced through forging methods. Forging involves pieces formed by impact force and hammering.

By applying pressure to metal billets using forging machinery, plastic deformation is induced to obtain forgings with certain mechanical properties, shape, and dimensions. Through continuous hammering of pipe fittings, the original segregation, porosity, gas holes, and inclusions in the ingots are compacted and welded together, resulting in a denser structure and improved plasticity and mechanical properties of the metal. Forging pipe fittings mainly include forged flanges, forged reducers, and forged tees. The main materials for forging pipe fittings are Q235, Q345, 16Mn, 20#, 35#, 45#, 40Cr, 12Cr1MoV, 30CrMo, 15CrMo, and 20G. Corresponding to forging pipe fittings are casting pipe fittings, where the mechanical properties of castings are lower than those of forgings made from the same material. The process of casting pipe fittings involves melting the metal into a liquid that meets certain requirements and pouring it into a mold, then cooling and solidifying it, followed by finishing to obtain castings (parts or blanks) with predetermined shape, size, and properties.