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S125381-035 - Hobart Hoballoy 8018-C3 1/4" Stick Electrodes - 50lb Can

Packaging: 50lb can
$8.72/lb $272.50/50lb can only $5.45/lbSave 37%

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OVERVIEW

Professional Grade E8018-C3 Welding Electrodes

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:

  • AWS Class: E8018-C3
  • Tensile Strength: 80,000 psi (minimum)
  • Yield Strength: 67,000 psi (minimum)
  • Current: DCEP (Reverse Polarity) or AC
  • Storage: Store in a dry, controlled environment; recondition if exposed to moisture.

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
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

INCLUDED

  • 50 lb Hermetically Sealed Can of 1/4" E8018-C3 Stick Electrodes

APPLICATIONS

  • Construction of bridges and structural steel
  • Fabrication of heavy earthmoving and mining equipment
  • Shipbuilding and offshore structures
  • Welding ASTM A588 weathering steels
  • Pressure vessels and piping requiring low-temperature toughness
  • General fabrication of 80,000 psi tensile strength steels

FAQ

E8018-C3 electrodes are used for welding high-strength low-alloy steels, particularly those requiring 80,000 psi tensile strength and good impact toughness at low temperatures.

The 'C3' suffix indicates the chemical composition of the electrode, specifically that it contains nominally 1% Nickel, which improves the weld's toughness.

A 1/4-inch diameter E8018 electrode typically operates in the range of 300 to 400 amps, depending on the specific machine and position, though it is generally limited to flat and horizontal positions due to the large puddle.

Yes, like all low-hydrogen (EXX18) electrodes, once the hermetically sealed can is opened, they should be stored in a holding oven at 250°F-300°F to prevent moisture pickup.

The 1/4-inch diameter is generally too large for vertical or overhead welding due to the fluidity and volume of the weld pool. It is best suited for flat and horizontal positions.

Yes, E8018-C3 is often used to weld weathering steels (like ASTM A588) because its mechanical properties and nickel content provide a good match for the base metal.

The main difference is strength and composition. 7018 has a minimum tensile strength of 70,000 psi, while 8018-C3 has 80,000 psi and contains 1% nickel for better low-temperature toughness.

It can be operated on both DCEP (Direct Current Electrode Positive) and AC (Alternating Current).
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