S283312-K29 - Hobart TM-771 .045 Flux-Cored Wire 33lb Spool

High-Performance Flux-Cored Wire for Critical Applications

The Hobart TM-771 is a premium gas-shielded flux-cored wire designed to meet the rigorous demands of heavy industrial fabrication. Engineered for use with 100% CO2 shielding gas, this .045-inch diameter wire delivers exceptional mechanical properties that often exceed standard E71T-1 classifications. It is specifically formulated to provide low diffusible hydrogen levels, typically measuring less than 5ml per 100g of weld metal, making it an ideal choice for applications requiring high crack resistance and structural integrity, such as shipbuilding and pressure vessel fabrication.

Superior Arc Characteristics and Weld Quality

One of the defining features of the TM-771 is its operator appeal. The wire produces a soft, quiet arc that remains stable even during complex out-of-position work. Spatter generation is virtually non-existent, which significantly reduces post-weld cleaning time and improves overall productivity. The slag system is designed to freeze rapidly, supporting the weld puddle in vertical-up and overhead positions, yet it removes easily to reveal a smooth, flat bead profile with excellent tie-in.

Industrial Versatility

This wire is an all-position solution suitable for single and multiple pass applications on carbon steel. Its robust mechanical properties make it a preferred consumable for industries ranging from offshore construction to heavy equipment manufacturing. The vacuum-packed 33lb spool ensures moisture resistance during storage, preserving the low-hydrogen characteristics essential for code-quality welds. Whether used in the shop or on-site, the Hobart TM-771 provides the consistency and reliability professional fabricators require for high-stress structural joints.

Compliance and Specifications

Meeting the requirements of MIL-E-24403/1 for hydrogen control, this wire is tailored for environments where weld metal purity is paramount. It combines the productivity of flux-cored welding with the quality assurance needed for critical infrastructure projects. By optimizing the flux formulation for CO2 gas, Hobart has created a cost-effective yet high-performance wire that handles bridging gaps and fit-up variations with ease.