ED022661 - Lincoln Outershield 71M 1.6mm Flux-Cored Wire 25lb Spool

Technical Overview of Lincoln Outershield 71M

The Lincoln Electric Outershield 71M (SKU: ED022661) is a premium mild steel, flux-cored wire designed for all-position welding of mild and low alloy steels. This 1.6mm (1/16-inch) diameter wire is supplied on a 25lb spool and is engineered to meet stringent AWS E71T-1C and E71T-1M classifications. It features a unique dual classification, allowing it to operate effectively with either 100% CO2 or a blend of 75% Argon / 25% CO2. This versatility makes it a preferred choice for industrial environments where gas availability or specific procedure requirements vary.

One of the defining technical characteristics of the Outershield 71M is its manufacturing process. Unlike strip-wound wires, this product utilizes a rod-based manufacturing technique. This results in a hermetically sealed wire with superior stiffness and column strength, significantly enhancing feedability through long gun cables and reducing the risk of bird-nesting. The wire exhibits excellent mechanical properties, specifically Charpy V-Notch impact toughness tested down to -40°C, making it suitable for applications requiring high ductility and resistance to brittle fracture in cold environments.

The arc characteristics are optimized for stability and efficiency. Operators can expect a spray-like transfer mode that minimizes spatter, thereby reducing post-weld cleaning time. The slag system is designed to freeze quickly, supporting out-of-position welding, particularly in the vertical-up progression, while remaining easy to remove. The 1.6mm diameter allows for high deposition rates in heavy fabrication settings, improving overall productivity.