S544058-033 - Hardalloy 140 Hardfacing Stick Electrode, 3/16 in, 10 lb Can

High-Performance Abrasion Resistance

The Hobart Hardalloy 140 is a premium shielded metal arc welding (SMAW) electrode designed specifically for hardfacing applications requiring exceptional resistance to severe abrasion. Engineered with a high chromium carbide alloy steel composition, this electrode deposits a wear-resistant overlay that stands up to the harshest industrial environments. It is particularly effective in scenarios where surfaces are subjected to grinding, gouging, and scratching forces, making it an indispensable consumable for heavy equipment maintenance and repair operations.

One of the standout technical characteristics of the Hardalloy 140 is its ability to maintain hardness and wear resistance at elevated temperatures. The deposit remains stable and effective up to 1200 degrees Fahrenheit (649 degrees Celsius), allowing it to be used on components that operate in high-heat environments without softening or losing its protective properties. Additionally, the alloy offers some corrosion resistance, extending the service life of parts exposed to mild corrosive elements alongside abrasive media.

Operational Specifications and Deposition

This 3/16-inch (4.8 mm) diameter electrode is formulated to operate on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC). This dual-polarity capability provides flexibility for welders in the field, allowing compatibility with a wide range of welding power sources. The electrode is designed for use in the Flat and Horizontal welding positions, ensuring optimal bead profile and deposit quality. Operators should note the manufacturer's specification regarding deposit thickness: a maximum of three layers is recommended. Limiting the buildup to three layers prevents the risk of spalling or cracking often associated with thick deposits of high-hardness alloys.

Industrial Applications and Suitability

The Hardalloy 140 is tailored for the construction, mining, and aggregate industries. It is the ideal choice for armoring components that face daily abuse from earth, rock, and abrasive materials. The high chromium carbide matrix provides a hard, slick surface that resists erosion. While its primary defense is against abrasion, the alloy is tough enough to withstand moderate impact, making it suitable for parts like crusher jaws and bucket lips that experience both wear modes. The product comes in a 10 lb (4.5 kg) hermetically sealed can, ensuring the flux coating remains dry and factory-fresh until the moment of use, which is critical for preventing hydrogen-induced defects.