OK Autrodur 38 G M (formerly OK Autrod 13.89) is a copper-coated, low-alloyed, solid GMAW wire used for hardfacing and building up, producing a wear-resistant weld metal with a hardness of between 35-40 HRC. It is used to repair and maintain tracks, rails, wheels, rolls, rail crossings, shafts, shovel teeth and other parts on digging machines, tools like dies and so on.