S125444-035 - Hobart Hoballoy E8018-B2 1/8" Stick Electrode (50lb Can)

Hobart Hoballoy 8018-B2 1/8" Stick Electrode Overview

The Hobart Hoballoy 8018-B2 is a premium low-alloy steel electrode designed for the Shielded Metal Arc Welding (SMAW) process. Engineered to meet the rigorous demands of high-strength fabrication, this electrode is classified under AWS E8018-B2 specifications. It is specifically formulated for joining low-alloy steels containing approximately 1.25% Chromium and 0.5% Molybdenum. These base metals are commonly found in high-temperature service environments, making this electrode an essential consumable for the power generation and petrochemical industries.

One of the defining characteristics of the Hoballoy 8018-B2 is its advanced coating technology. The flux coating is specially developed to resist moisture absorption, a critical factor in preventing hydrogen-induced cracking (cold cracking) in the weld zone. In environments characterized by high heat and humidity, standard electrodes can absorb atmospheric moisture, leading to porosity and weld failure. Hobart's moisture-resistant formulation mitigates this risk, ensuring low diffusible hydrogen levels and maintaining the mechanical integrity of the weldment. This feature also contributes significantly to the elimination of starting porosity, a common defect in low-hydrogen electrodes.

Mechanically, the electrode produces weld deposits with tensile strengths exceeding 80,000 psi, matching the strength requirements of the base materials it is designed to join. It offers excellent arc stability and slag detachability, which improves welder efficiency and reduces cleanup time. The electrode is versatile in its application, capable of operating on both Alternating Current (AC) and Direct Current Electrode Positive (DCEP). This dual-polarity capability allows for flexibility depending on the available power source and the specific requirements of the joint design.

The product is supplied in a robust 50 lb hermetically sealed can. This packaging is industry-standard for low-hydrogen electrodes, ensuring that the product reaches the job site in factory-fresh condition. Once opened, standard electrode storage and reconditioning practices should be followed to maintain the low-hydrogen characteristics required for critical code work.