NXF UNS N08020/Alloy 20/2.4660/NiCr20CuMo DN 15-1200 Class 3000-9000 Nickel Alloy 20 Forged Socket Welding Cross

Heating the raw material (round steel or steel ingot) to the forging temperature to make the metal reach a plastic state. Press molding: Put the heated blank into the mold through forging equipment, apply pressure to deform it, and form the basic shape of the cross (cross structure, four interfaces). The forging process can improve the density and mechanical properties of materials and adapt to high-pressure environments.

Use a high-precision lathe to process the socket of the cross (the part inserted into the pipe) to ensure dimensional accuracy and surface smoothness, and ensure the sealing of subsequent pipe connections3. Processing of other parts: Trim the overall structure of the four-way, remove burrs and flash, and ensure that the angle of each interface is accurate (usually a 90° intersection).

For specific materials, heat treatment such as annealing, normalizing or tempering may be required to adjust the hardness, toughness and stress distribution to ensure that the pipe fittings are not easy to crack or deform during use.

Welding suitability inspection ensure that the design of the pipe fitting socket meets the socket welding requirements to facilitate subsequent welding operations during pipeline connection. Pressure test: simulate the actual working pressure to conduct sealing and pressure resistance tests to prevent leakage. Appearance and dimensional inspection: Check whether there are cracks and deformations, and whether the interface size meets the standards.