ED032636 - Lincoln Excalibur 7028 5/32" Stick Electrode 50lb Can

High-Efficiency Low Hydrogen Welding Solution

The Lincoln Electric Excalibur® 7028 Stick Electrode (ED032636) represents a specialized solution in the SMAW (Shielded Metal Arc Welding) category, designed specifically to bridge the gap between standard low hydrogen electrodes and high-deposition iron powder electrodes. Classified as AWS E7028 H8, this consumable is engineered with a heavy coating containing approximately 50% iron powder by weight. This formulation allows for significantly higher current carrying capacities compared to standard E7018 electrodes of the same diameter, resulting in superior deposition rates and increased travel speeds. It is an ideal choice for heavy structural fabrication where long, continuous welds in the flat or horizontal fillet positions are required.

Technically, the Excalibur® 7028 offers distinct metallurgical advantages. It maintains the low hydrogen status critical for welding crack-sensitive steels, boasting an H8 diffusible hydrogen rating (less than 8ml of hydrogen per 100g of deposited weld metal). This ensures the integrity of the weldment in restrained joints or on higher carbon steels. Furthermore, the electrode is formulated to deliver exceptional mechanical properties, specifically impact toughness. It is capable of producing weld deposits with Charpy V-Notch impact values exceeding 84 Joules (60 ft-lbf) at extremely low temperatures down to -40°C (-40°F), making it suitable for applications in harsh environments or critical infrastructure.

The 5/32-inch (4.0 mm) diameter electrode comes in a 14-inch length and is packaged in Lincoln's proprietary 50 lb Easy Open Can. This packaging is designed to withstand industrial handling while preserving the moisture-resistant coating of the electrodes, ensuring they are factory-fresh upon opening. The electrode operates effectively on both AC and DCEP (Direct Current Electrode Positive) polarities, providing flexibility for various power source configurations. By optimizing the arc characteristics for stability and minimizing spatter, Lincoln Electric ensures that the Excalibur® 7028 not only meets rigorous code requirements but also enhances operational efficiency in high-volume production environments.