本发明提供了一种管件焊缝，属于合金制备技术领域。本发明提供的焊缝包括以下质量百分含量的组分：C 0.04～0.07％，Si 0.10～0.50％，Mn 1.0～1.5％，Ni 3.0～4.0％，Mo≤0.2％，Cu 0.04～0.15％，S≤0.01％，P≤0.01％，余量为Fe。从实施例可以看出：焊缝抗拉强度为760～810MPa，焊缝‑60℃低温冲击值Akv为77～85J。

The invention provides a pipe fitting weld, which belongs to the technical field of alloy preparation. The welds provided by the invention consist of the following components with mass percentage content: C 0.04 ~ 0.07%, Si 0.10 ~ 0.50%, Mn 1.0 ~ 1.5%, Ni 3.0 ~ 4.0%, Mo≤ 0.2%, Cu 0.04 ~ 0.15%, S≤ 0.01%, P≤ 0.01%, and a margin of Fe. It can be seen from the embodiment that the tensile strength of the weld is 760 ~ 810MPa, and the low temperature impact value Akv of the weld at 60℃ is 77 ~ 85J.