These consumables are developed for welding galvanized structural fabrications.
The presence of micro-alloying elements is optimized to minimize zinc contamination in the weld pool, allowing welding directly onto the galvanized surface and minimizing spatter. It thus displays better
welding characteristics compared to standard unalloyed wires. Good resilience at low temperatures. The use of thread
with synergic inverter generators it allows to achieve optimal results. After welding, it's mandatory to restore the protective surface in the weld and HAZ area using products for cold galvanizing. Preheat and PWHT would often not be required but actual requirements will depend on grade and thickness of base material being welded. The required mechanical properties of a welded joint are readily achieved in C-Mn galvanized steels with the use of the appropriate welding consumables. However, the complex nature of the structural changes that occur during the weld thermal cycle does mean that some care is needed in assessing properties such as heat affected zone (HAZ) toughness and hardness.
Low alloy C-Mn steel, deoxidized with Ti, Al and Zr.
Materials to be welded
Used to weld C-Mn and low alloy steels also with light
surface contaminations and oxides, and for welding galvanized steels with tensile strengths of 580MPa.