| Applications | Welding of 50kgf/mm2 class high tensile strength steels ships, bridges, buildings and pressure vessels. |
|---|---|
| Characteristics | LC-300 is the most widely used low hydrogen type covered electrode for all position welding of 50kgf/mm2 class high tensile strength steels. X-ray soundness and mechanical properties of the weld metal are excellent. The usabilities such as arc smoothness, slag removal and bead appearance are good. |
| Notes on usage | (1) Dry the electrodes at 300~350℃ for 30~60 minutes before use. (2) Adopt the backstep method or strike the arc on a small steel plate prepared for this particular purpose to prevent blowholes at the arc starting. (3) Keep the arc as short as possible. |
| Shielding Gas | - |
CHOSUN電焊支CR-13/LC-300
