S247019-029 - Hobart Fabco TR-70 1/16" Flux-Cored Wire, 33lb Spool

Technical Overview of Hobart Fabco TR-70

The Hobart Fabco TR-70 is a gas-shielded, flux-cored wire designed for high-performance welding of mild and medium carbon steels. Classified under AWS A5.20 as E70T-1C and E70T-9C, this 1/16-inch diameter wire is engineered to deliver exceptional mechanical properties and operational efficiency in flat and horizontal positions. The wire utilizes a tubular design filled with a specific flux formulation that interacts with a 100% CO2 shielding gas to produce a stable arc, deep penetration, and a fast-freezing slag system.

One of the primary technical advantages of the Fabco TR-70 is its high deposition rate, which significantly exceeds that of solid wires and stick electrodes in similar applications. The high current density capacity of the 1/16" diameter allows for rapid metal transfer, making it ideal for heavy fabrication where fill rate is a critical productivity metric. The slag system is designed to be self-peeling or easily removable, reducing post-weld cleaning time and the risk of slag inclusions in multi-pass welds.

Metallurgically, the wire provides consistent weld metal chemistry suitable for structural applications. It offers robust impact properties, meeting the requirements for various industrial codes. The use of CO2 as a shielding gas not only provides cost-effectiveness but also contributes to the deep penetration profile characteristic of this wire, ensuring sound fusion in thick plate sections. The wire is wound on a standard 33lb spool, compatible with most industrial wire feeders equipped for 1/16" consumables.

Operators and welding engineers should note that while this wire excels in flat and horizontal fillets and groove welds, it is not designed for out-of-position welding (vertical or overhead). Proper storage conditions are recommended to maintain low hydrogen levels and prevent moisture pickup in the flux core, ensuring porosity-free welds upon deployment.