S544051-033 - Hobart Hardalloy 140 5/32" Hardfacing Stick Electrode (10lb Can)

High-Performance Chromium Carbide Hardfacing Electrode

The Hobart Hardalloy® 140 is a premium hardfacing stick electrode engineered to deposit a high chromium carbide alloy steel. Designed for industrial maintenance and repair operations (MRO), this electrode specifically targets components subjected to severe sliding abrasion coupled with moderate impact. The metallurgical composition of the weld deposit ensures exceptional durability in harsh environments, making it a staple for heavy industries such as mining, construction, agriculture, and dredging. The 5/32-inch (4.0 mm) diameter allows for significant deposition rates while maintaining control over the weld puddle.

One of the defining technical characteristics of the Hardalloy 140 is its thermal stability. The deposit retains its wear-resistant properties at elevated temperatures up to 1200°F (649°C), making it suitable for applications involving hot abrasive materials, such as coke chutes, sintering equipment, and hot slag conveyors. The electrode is formulated to operate on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing flexibility across different power sources and field conditions. The amperage range of 110 to 190 A allows operators to optimize heat input and penetration based on the base metal thickness and position.

This general-purpose hardfacing electrode is compatible with carbon steel, low alloy steel, and austenitic manganese base metals. It is also effective when applied over buffer layers of Hardalloy® 32, Hardalloy® 118, or ChromeMang. To prevent cracking or spalling due to internal stresses in the hard chromium carbide matrix, application is strictly limited to a maximum of three layers. The resulting bead is smooth and ripple-free, minimizing post-weld grinding, although the deposit is generally non-machinable and must be ground if shaping is required. The slag system is designed for easy removal, reducing cleanup time between passes.

Common industrial applications include the refurbishment of ammonia knives, augers, bucket teeth, bulldozer blades, and crusher components. By restoring worn dimensions and adding a protective wear layer, the Hardalloy 140 significantly extends the service life of critical machinery, reducing downtime and replacement costs. The product is supplied in a 10 lb (4.5 kg) hermetically sealed can, ensuring low moisture content and optimal arc performance right out of the package.