S125332-035 - Hobart Hoballoy 8018-C3 3/32" Low Alloy Stick Electrode 50lb

Technical Overview of Hobart Hoballoy 8018-C3

The Hobart Hoballoy 8018-C3 is a premium quality low-alloy stick electrode designed specifically for applications requiring tensile strengths in the 80,000 psi range. Classified under AWS E8018-C3, this electrode is engineered with a nominal 1% nickel content in the weld deposit. The addition of nickel significantly enhances the metallurgical properties of the weld metal, specifically improving notch toughness at sub-zero temperatures. This makes the Hoballoy 8018-C3 an excellent choice for projects where impact resistance is critical, delivering Charpy V-Notch values of 20 ft.lbs. at -40°F.

One of the standout technical features of this electrode is its advanced coating formulation. Stick electrodes, particularly low-hydrogen types, are susceptible to moisture pickup which can lead to hydrogen-induced cracking in the weld zone. Hobart has formulated the coating of the Hoballoy 8018-C3 to specifically resist moisture absorption even in conditions of high heat and humidity. This ensures that the electrode maintains its low-hydrogen status longer, providing greater reliability and reducing the frequency of re-baking required in challenging field environments.

Operationally, the Hoballoy 8018-C3 is designed for welder appeal and ease of use. It provides excellent puddle control, which is essential for out-of-position welding, although it excels in flat and horizontal positions as well. The electrode exhibits good wetting action, allowing the weld metal to tie in smoothly at the toes of the weld, reducing the risk of undercut and stress risers. It is compatible with both Alternating Current (AC) and Direct Current Electrode Positive (DCEP), offering flexibility depending on the power source available. This versatility makes it a staple for heavy industrial fabrication involving T-1 steels, AR (Abrasion Resistant) steels, and other high-strength low-alloy base materials.

The 3/32-inch diameter is particularly useful for thinner sections or for root passes in heavy wall pipe and plate. Packaged in a durable 50lb can, these electrodes are protected during transport and storage, ensuring they arrive ready for critical code work in shipbuilding, petrochemical, and offshore construction sectors.