91 tianjin jinqiao welding material welding electrode knot 422j40.50 e4303 91天津金桥焊材电焊条结422J40.50 E4303

The welding electrode consists of a welding core and a coating layer. The welding electrode is formed by evenly and uniformly pressing the coating (coating layer) onto the welding core using a metal brush. Different types of welding electrodes have different welding cores. The welding core is the metal core of the electrode. To ensure the quality and performance of the weld, strict regulations apply to the content of various metal elements in the core. In particular, the levels of harmful impurities such as sulfur and phosphorus must be strictly controlled, with better properties compared to the base material.

91 Tianjin Jinqiao Welding Materials Electric Welding Rod, Type 422J4 0.5 0 E43 3