31512 - UTP WEARtig Tool 55 (A 73 G 2) Hard Facing TIG Rod, 1/8" x 39", 11 lb Tube

High-Performance Tool Steel Hardfacing

The UTP WEARtig Tool 55 (also designated as UTP A 73 G 2) is a premium hard facing TIG welding rod designed for the rigorous demands of industrial maintenance and tool manufacturing. Engineered to meet DIN 8555: W/MSG 3-GZ-55-ST and EN 14700: S Z Fe8 standards, this filler metal provides a reliable solution for extending the service life of machine parts subject to heavy abrasion, compression, and moderate impact. The rod deposits a tool steel alloy capable of achieving a hardness range of 53 - 58 HRC, making it an exceptional choice for both manufacturing new working surfaces and restoring worn components.

One of the critical technical advantages of the UTP WEARtig Tool 55 is its versatility in thermal environments. It is specifically formulated for highly wear-resistant build-ups on both hot and cold working tools. This thermal stability ensures that the overlay maintains its mechanical properties even when subjected to elevated temperatures during operation. The rod is copper-coated, a feature that enhances shelf-life by preventing oxidation and improves electrical conductivity during the welding process for a stable, consistent arc.

From a metallurgical perspective, the deposit is designed to be machinable, allowing for precise dimensional restoration. While it exhibits high hardness, it can be processed using grinding techniques or tungsten carbide tools, facilitating the final shaping of complex geometries. This balance of hardness and machinability is essential for applications involving precision components such as roll mandrils, axial rolls, and guiding surfaces where exact tolerances are mandatory. The 1/8" (3.2mm) diameter allows for controlled deposition rates suitable for medium to heavy build-up requirements.