
Hobart's Hoballoy 8018-C3 is a high-performance Shielded Metal Arc Welding (SMAW) electrode designed for joining high-tensile steels. This 1/4-inch diameter rod is a powerhouse for heavy industrial applications, capable of delivering high deposition rates and deep penetration in thick plate sections. The "C3" designation in the AWS classification indicates a chemical composition containing approximately 1% nickel, which provides a significant boost to the mechanical properties of the weld deposit, specifically yield strength and impact toughness.
For professional welders, the operating characteristics of the Hoballoy 8018-C3 are a standout feature. The electrode features a moisture-resistant, low-hydrogen iron powder coating that promotes a stable arc, reduced spatter, and excellent bead contour. The slag system is designed to detach easily, reducing cleanup time between passes—a critical factor when welding multi-pass joints on heavy sections. Because this is a 1/4-inch electrode, it operates at higher amperage ranges (typically 300-400+ amps), making it most suitable for flat and horizontal fillet or groove welds where gravity helps control the large weld puddle.
One of the primary technical advantages of this electrode is its ability to maintain ductility and impact resistance at low temperatures. With Charpy V-Notch properties rated for -40°F, it is the electrode of choice for structures exposed to harsh winter conditions or cryogenic environments. It is also frequently specified for welding weathering steels (like Cor-Ten) in bridge and architectural applications where the weld metal needs to match the mechanical strength of the base material.
Technical Specifications:
When your welding procedure specification (WPS) calls for an 80ksi filler metal with proven toughness, Hobart Hoballoy 8018-C3 delivers consistent, code-compliant results. The 50lb can packaging ensures you have ample material for large jobs while maintaining the low-hydrogen status of the coating until opened.
| Additional Information |
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| Brand:Hobart |
| AWS Spec:E8018-C3 |
| Diameter:6.4mm (1/4") |
| Packaging Description:50lb can |
| Polarity:AC/DCEP |
| Position:Flat/Horizontal |
| Tensile Strength:80,000 psi |
| Alloy Composition:1% Nickel |
| Coating Type:Low Hydrogen Iron Powder |
| Yield Strength:67,000 psi |
| Charpy V Notch:20 ft•lbf @ -40°F |