522401025H - Hobart SubCOR SL 742 5/32" Seamless Metal-Cored SAW Wire (55lb Coil)

High-Performance Seamless Metal-Cored Wire

The Hobart SubCOR SL 742 is a premium seamless low-alloy metal-cored wire engineered specifically for Submerged Arc Welding (SAW) applications. Designed to meet the rigorous demands of heavy industrial fabrication, this wire is formulated to weld base materials with yield strengths up to 100 ksi (690 MPa). Its unique seamless construction eliminates the longitudinal seam found in traditional folded cored wires, significantly reducing the potential for moisture absorption. This feature is critical for maintaining low diffusible hydrogen levels (typically H4 or better), thereby minimizing the risk of hydrogen-induced cracking in critical high-strength structures.

Industrial Applications and Metallurgy

This 5/32-inch diameter wire is ideally suited for heavy-duty sectors such as power generation, crane manufacturing, and pressure vessel fabrication. The SubCOR SL 742 provides excellent impact toughness, making it a reliable choice for structural components that may be subjected to harsh environmental conditions or dynamic loading. As a metal-cored wire, it offers distinct advantages over solid wires, including higher deposition rates and improved wetting characteristics, which can lead to increased productivity in automated or semi-automated SAW setups. The copper coating enhances electrical conductivity and ensures smooth feeding through the contact tip, reducing wear and downtime.

Optimized for Heavy Fabrication

Fabricators in the oil and gas, transportation, and foundry industries rely on SubCOR SL 742 for its consistency and mechanical integrity. It is particularly effective for pipeline double jointing, vehicle frame fabrication, and casting repairs where high-strength welds are non-negotiable. The 55 lb coil packaging is designed for standard industrial wire feeders, ensuring compatibility with existing submerged arc equipment. When paired with the appropriate flux, this wire delivers X-ray quality welds with superior bead appearance and slag release.