S126032-033 - Hobart Hoballoy 11018M Stick Electrode, 3/32" x 10lb Can

High-Strength Low-Alloy Stick Electrode for Critical Applications

The Hobart Hoballoy 11018M is a premium low-alloy shielded metal arc welding (SMAW) electrode engineered for joining high-strength steels where weld integrity is paramount. Classified under AWS A5.5 as E11018-M H4R, this electrode is specifically formulated to deliver a minimum tensile strength of 100,000 psi, making it an essential consumable for heavy industrial fabrication involving quenched and tempered steels. The "M" designator indicates a specific alloy composition intended to meet rigorous mechanical property requirements, particularly toughness and ductility in demanding environments.

One of the defining technical characteristics of the Hoballoy 11018M is its H4R designation. This indicates a diffusible hydrogen content of less than 4ml per 100g of weld metal, combined with a moisture-resistant coating. This low-hydrogen characteristic is critical when welding susceptible base metals like HY-80, HY-90, and HY-100 steels to prevent hydrogen-induced cracking (cold cracking) in the heat-affected zone. The electrode operates effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing flexibility for various power source configurations found in shipyards and construction sites.

The metallurgical composition is optimized to match the mechanical properties of T-1 steels and other high-yield structural alloys used in petrochemical infrastructure, offshore drilling platforms, and naval shipbuilding. The 3/32-inch (2.4 mm) diameter allows for precise heat input control, which is vital when welding thinner sections of high-strength material or when performing root passes in multi-pass weldments. Supplied in a 10 lb (4.5 kg) hermetically sealed can, the electrodes are protected from atmospheric moisture absorption during storage, ensuring they are factory-fresh and ready for code-quality work immediately upon opening.

In terms of performance metrics, the Hoballoy 11018M excels in providing consistent mechanical properties across single and multiple pass applications. It is designed to meet the stringent demands of industries where structural failure is not an option. The electrode's ability to maintain high tensile strength while offering good wetting action makes it a superior choice for critical structural repairs and fabrication in harsh environments.