Which materials are weldable?

In principle, the same rules apply to the materials as to conventional arc welding processes

• Always weld materials of the same type.
• Due to the extremely fast temperature rise and cooling processes (arc burning time < 1s), there is a risk of hardening of steel due to embrittlement. The carbon content C of the materials to be welded (stud and base material) should therefore be < 0.17%.