UTP 613 KB description: UTP 613 Kb is a basis-coated stick electrode for construction-, boiler-, tube- and fine-grained steels as well as for steels with up to 0,35% C-content. It is recommended especially for the following base metal. UTP 613 Kb has a good weldability and a stable arc. The weld metal is resistant to ageing, crack resistant and is little affected by steel impurities.