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S284229-002 - Hobart Fabco 81N1 3/32" Flux-Cored Wire, 60lb Coil

Packaging: 60lb coil
$11.32/lb $424.80/60lb coil only $7.08/lbSave 37%

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OVERVIEW

Hobart Fabco 81N1: High-Performance 1% Nickel Flux-Cored Wire

The Hobart Fabco 81N1 is a premium gas-shielded flux-cored wire designed to meet the rigorous demands of heavy industrial fabrication. Formulated with a nominal 1% nickel deposit, this wire is engineered specifically to provide excellent notch toughness at low temperatures, making it a critical consumable for projects located in harsh, cold environments. The 3/32-inch diameter format in a 60lb coil is optimized for high-deposition welding, allowing for efficient metal transfer in heavy-section welding applications found in mining, earthmoving, and petrochemical industries.

Superior Mechanical Properties

One of the standout features of the Fabco 81N1 is its ability to maintain ductility and impact strength when temperatures drop. Standard carbon steel wires can become brittle in freezing conditions, leading to potential weld failures under stress. The addition of nickel refines the grain structure of the weld metal, ensuring that the finished joint retains the necessary toughness to withstand dynamic loading and impact. This makes it the wire of choice for manufacturing and repairing crane booms, excavator arms, and structural supports that operate outdoors year-round.

Versatile Shielding Gas Options

Flexibility in the shop or field is essential, and the Fabco 81N1 delivers by operating effectively with either 100% CO2 or a blend of 75-80% Argon and 20-25% CO2. Using 100% CO2 provides deep penetration and is cost-effective, while an Argon blend can smooth out the arc and reduce spatter, improving operator comfort and reducing post-weld cleanup time. The wire is designed for both single and multiple pass applications, providing a consistent bead appearance with a slag system that is generally easy to remove.

Application Suitability

Beyond its mechanical robustness, this wire is also suitable for welding weathering grades of steel where an exact color match is not a primary requirement. Its chemical composition ensures compatibility with the base material's strength requirements while providing the necessary corrosion resistance inherent to the alloy. Whether used in the fabrication of bridge components, offshore structures, or heavy mining machinery, the Hobart Fabco 81N1 provides the reliability professional welders demand.

Additional Information
Packaging Description:60lb coil
Diameter:3/32"
Weld Process:Flux Core
Polarity:DC+
Position:Flat/Horizontal
AWS Classification:E81T1-Ni1C, E81T1-Ni1M
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Material Composition:1% Nickel, Low Alloy Steel
Wire Diameter:3/32"
Spool Size:60lb Coil
Wire Type:Gas-Shielded Flux-Cored
Applications:Earthmoving Equipment, Mining, Petro-Chemical, Weathering Steels
----- new values below ----
AWS Classification:E81T1-Ni1C, E81T1-Ni1M
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Material Composition:Low Alloy Steel, 1% Nickel
Wire Diameter:3/32"
Spool Size:60lb Coil
Wire Type:Gas-Shielded Flux-Cored
Applications:Petro-Chemical, Mining, Earthmoving Equipment, Weathering Steels
Brand:Hobart
Diameter:3/32"
Packaging Description:60lb Coil
Weld Process:Flux Core
Polarity:DC+
Position:Flat/Horizontal

INCLUDED

  • 1 x 60lb Coil of Hobart Fabco 81N1 3/32" Flux-Cored Wire

APPLICATIONS

  • Petro-Chemical Infrastructure
  • Mining Machinery Repair and Fabrication
  • Earthmoving and Heavy Construction Equipment
  • Structural Steel in Cold Climates
  • Weathering Steel Fabrication (non-color match)
  • Bridge and Offshore Construction

FAQ

Hobart Fabco 81N1 is designed to operate with either 100% CO2 or a mixture of 75-80% Argon and 20-25% CO2. 100% CO2 typically provides deeper penetration, while the argon mix offers a smoother arc.

The 1% nickel addition significantly improves the notch toughness of the weld metal, particularly at low temperatures. This makes the wire ideal for applications where the weldment will be exposed to cold environments and dynamic loading.

While the AWS classification might suggest positional capabilities, a 3/32" diameter wire is generally restricted to flat and horizontal positions due to the large volume of the weld puddle. Smaller diameters of this classification would be required for out-of-position work.

Yes, Fabco 81N1 can be used on weathering types of steel. However, it is noted that it should be used where a strict color match to the rusted steel is not required.

This wire requires Direct Current Electrode Positive (DCEP), also known as reverse polarity.

To run a 60lb coil, you will typically need a wire feeder equipped with a coil adapter or a specific payoff assembly designed to hold the larger coil format securely.

Like all flux-cored wires, Fabco 81N1 should be stored in a dry, low-humidity environment. If opened, it should be kept in a heated cabinet or rod oven to prevent moisture pickup which can cause porosity.

Fabco 81N1 typically conforms to AWS A5.29 classifications E81T1-Ni1C and E81T1-Ni1M, depending on the shielding gas used.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet