Oerlikon Fluxofil 52 description: FLUXOFIL 52 is a seamless copper coated basic flux cored wire for hardfacing of wear parts, such as pulleys, rollers, caterpillar track rollers, sprockets. The weld metal is of medium hardness, and is machinable by chip-forming. The weld metal is tough and free of cracks and therefore resistant to shock and impact. It is suitable for flame and inductive hardening. Before depositing the final pass, the interpass temperature should not exceed 250C. A buffer layer, using FLUXOFIL 31, is only required for higly hardenable base metals.