S681719-002 - Hobart FabCO 410NiMo 1/16" Flux-Cored Stainless Wire, 60lb Coil

Technical Overview of Hobart FabCO 410NiMo

The Hobart FabCO 410NiMo is a gas-shielded, flux-cored welding wire designed specifically for the fabrication and repair of martensitic stainless steels. This product is engineered to meet AWS A5.22 classifications E410NiMoT1-1 and E410NiMoT1-4, ensuring compliance with rigorous industrial standards. The wire has a diameter of 1/16 inch and is supplied in a 60lb coil, optimized for heavy-duty industrial applications requiring extended welding durations without frequent spool changes.

Metallurgically, the FabCO 410NiMo deposits a martensitic stainless steel alloy with a nominal composition of 12% Chromium, 4.5% Nickel, and 0.55% Molybdenum. This specific chemistry is tailored to match the properties of ASTM CA6NM castings as well as 410, 410S, and 405 stainless steel base materials. The addition of nickel significantly improves the toughness and ductility of the weld metal compared to standard 410 grades, reducing the risk of cold cracking which is a common challenge when welding martensitic alloys.

This consumable operates on Direct Current Electrode Positive (DCEP) and is compatible with both 100% CO2 and mixed gas (75% Argon / 25% CO2) shielding. The use of mixed gas typically provides a smoother arc transfer and reduced spatter levels. Post-weld heat treatment (PWHT) is generally recommended for this alloy system to relieve residual stresses and temper the martensitic structure, thereby optimizing the ductility and impact toughness of the finished weldment. The wire is formulated to provide deep penetration and sound fusion, critical for structural repairs in high-stress environments.

Industrial analysts should note that this wire is a high-productivity alternative to SMAW (stick) electrodes for matching applications. It offers higher deposition efficiency and travel speeds, making it the preferred choice for extensive surfacing or joining operations in the power generation and petrochemical sectors.