Characteristics and Applications
This series of welding wires for wear-resistant surfacing is doped with an appropriate amount of alloying elements such as Mo, W, and V. It significantly improves the high-temperature strength and hardness of the surfacing layer, and features excellent wear resistance, crack resistance, as well as good temper softening resistance. The Rockwell hardness of the surfacing layer generally ranges from 45 to 65 HRC. It is widely applicable to the surfacing and repair of components such as rollers, rolls, and molds.
Notes
1. Suitable for welding processes including MIG, MAG, TIG and plasma arc welding. The shielding gas shall be 100% argon or argon-rich mixed gas.
2. Oil stains, moisture, oxide film and other contaminants on the welding area must be completely removed.
3. A good wind shielding shall be provided at the welding site to prevent the dissipation of shielding gas which may cause welding defects.
4. The ambient humidity for welding should generally not exceed 70%.
5. The preheating or interpass temperature shall generally be controlled within the range of 100–300℃.

Typical Chemical Composition of Welding Wire (wt%):