S540481-031 - Hobart Hardalloy 118 1/4" Hardfacing Electrodes (50lb Carton)

Heavy-Duty Abrasion Protection with Hobart Hardalloy 118

The Hobart Hardalloy 118 is a premium hardfacing stick electrode designed for industrial applications requiring superior resistance to severe abrasion and moderate impact. This 1/4-inch diameter electrode is formulated to deposit a high-chromium carbide overlay that significantly extends the service life of heavy equipment parts subject to grinding, gouging, and sliding wear. It is an essential consumable for maintenance and repair operations in mining, quarrying, dredging, and construction industries.

Packaged in a 50-pound carton, these electrodes are engineered for high deposition rates, allowing for efficient coverage of large surface areas. The weld deposit boasts a typical hardness of Rockwell C 55-60, providing a robust shield against abrasive media. The microstructure consists of primary chromium carbides in an austenitic matrix, which is the key to its exceptional wear performance. Operators will appreciate the smooth arc characteristics and the ability to use either AC or DCEP (Direct Current Electrode Positive) power sources, offering versatility across different welding machines and site conditions.

It is important to note that the Hardalloy 118 deposit is non-machinable and must be finished by grinding if a specific profile is required. The deposit will naturally develop transverse stress-relief cracks, known as "checking," which are normal and beneficial as they relieve residual stresses and prevent the overlay from peeling or spalling. This product typically conforms to AWS A5.13 class EFeCr-A1 standards.

Key Industrial Applications

• Mining & Aggregates: Resurfacing crusher rolls, hammers, and screens.
• Earth Moving: Protecting bucket teeth, lips, and dozer blades.
• Dredging: Repairing dredge pump parts and cutter heads.
• Material Handling: Hardfacing screw conveyors, mixer paddles, and chutes.