Why 15CrMo seamless steel pipe is easy to fracture during welding process

15CrMo seamless steel pipe is easy to fracture during welding process, that should be caused by too concentrated welding stress problem. After quenching, the 15CrMo seamless steel pipe is very brittle. The local welding temperature is very high, and then no corresponding insulation measures, resulting in 15CrMo seamless steel pipe fracture.

15CrMo seamless steel pipe welding is a process in which the workpiece interface is heated to the melting state, and complete the welding without pressure. During welding, the heat source will be rapidly welded to the two workpiece interface to form molten pool. The molten pool moves forward with the heat source. After cooling, a continuous weld is formed, and the two workpiece is connected into one body.

After heat treatment, the 15CrMo seamless steel pipe shows high quality, mainly in dimension precision and surface finish. Even after heat treatment, the 15CrMo seamless steel pipe surface will not have oxide film, and does not deform under cold bending, so 15CrMo seamless steel pipe can carry out more complex mechanical processing. These are the advantages of 15CrMo seamless steel pipe. Under the strong external force, the plasticity and fracture resistance of 15CrMo seamless steel pipe have been improved to a certain extent.