S651519-002 - Hobart Fabco 115 1/16" Flux-Cored Wire 60lb Coil

Technical Overview of Hobart Fabco 115

The Hobart Fabco 115 is a premium low-alloy, flux-cored welding wire designed specifically for the demands of high-strength, quenched and tempered steels. Classified under AWS A5.29 as E110T5-K3C and E110T5-K3M, this wire features a basic slag system (T-5). Unlike rutile-based wires, the basic slag formulation is engineered to produce weld deposits with superior metallurgical cleanliness and mechanical integrity. This makes it an optimal choice for critical applications where the prevention of cold cracking is paramount.

One of the defining characteristics of the Fabco 115 is its low diffusible hydrogen content, typically testing well below 4ml per 100g of weld metal. This low-hydrogen characteristic is essential when welding sensitive materials such as ASTM A514 (T-1), A517, and HY-100 steels, which are prone to hydrogen-induced cracking (HIC). The wire delivers a tensile strength in the range of 110,000 to 115,000 psi, matching the mechanical requirements of these high-yield base materials.

The wire is designed for flat and horizontal position welding, a trade-off common to basic slag systems which are more fluid than their rutile counterparts. However, the trade-off yields exceptional impact toughness at sub-zero temperatures, ensuring structural reliability in harsh environments. It operates effectively on DCEP polarity using either 100% CO2 or a 75% Argon / 25% CO2 shielding gas blend, providing flexibility depending on the shop setup and desired arc characteristics.

Fabricators serving the heavy equipment, crane manufacturing, and shipbuilding industries rely on Fabco 115 for its consistent radiographic quality and ability to handle multi-pass welds on thick sections without inclusion defects. It is packaged in a 60lb coil, suitable for industrial wire feeders requiring larger bulk packaging for continuous operation.