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S307312-011 - Hobart Quantum Arc 3 ER70S-3 .045 MIG Wire 600lb Robo Pak

Packaging: 600lb robo pak
$8.70/lb $3,264.00/600lb robo pak only $5.44/lbSave 37%

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OVERVIEW

High-Performance ER70S-3 Solid Wire for Automation

The Hobart Quantum Arc 3 .045" MIG Wire in the 600 lb Robo Pak is a premium choice for industrial manufacturing sectors requiring consistent, high-speed welding performance. Engineered specifically for robotic and semi-automatic applications, this solid wire meets AWS ER70S-3 classifications. Unlike ER70S-6 wires, the S-3 formulation contains slightly lower levels of manganese and silicon deoxidizers. This chemical composition is strategically designed for welding on clean, new steel where heavy deoxidizers are unnecessary, resulting in a cleaner weld bead with fewer silicon islands (glassy deposits). This characteristic makes the Quantum Arc 3 particularly advantageous for automotive frames, metal furniture, and components that undergo painting or coating immediately after welding, as it reduces the labor required for post-weld surface preparation.

Optimized for Robotics and High Volume

Efficiency is key in modern fabrication, and the S307312-011 SKU delivers with its bulk 600 lb Robo Pak packaging. This large-format drum is designed to minimize downtime associated with frequent spool changes, maximizing arc-on time for continuous production lines. The wire is precision-wound to ensure tangle-free payoff, a critical factor in preventing burn-backs and contact tip failures in automated cells. The copper-coated finish further enhances feedability by reducing friction within the liner and improving electrical conductivity at the contact tip, ensuring stable arc initiation and maintenance even at high wire feed speeds.

Versatile Shielding Gas Compatibility

Hobart Quantum Arc 3 is versatile in its shielding gas requirements. It performs exceptionally well with 100% CO2, offering deep penetration and cost savings, but also runs smoothly with Argon/CO2 blends (such as C25) for reduced spatter and a flatter bead profile. This flexibility allows facility managers to utilize existing gas supply infrastructure without compromising on weld quality. Whether used for light sheet metal fabrication or structural automotive components, this wire delivers consistent mechanical properties and a visually appealing finish.

Additional Information
Packaging Description:600lb robo pak
Diameter:0.045
AWS Spec :ER70S-3
Weld Process:MIG
Polarity:DC+
Grade:S3 Copper Coated
Wire Diameter:0.045"
Spool Size:600 lb
Packaging Type:Robo Pak / Drum
AWS Classification:ER70S-3
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Material Composition:Mild Steel
Wire Finish:Copper Coated
Applications:Automotive, General Fabrication, Robotic Welding
----- new values below ----
Wire Diameter:0.045"
Spool Size:600 lb
Packaging Type:Robo Pak (Drum)
AWS Classification:ER70S-3
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Material Composition:Mild Steel
Wire Finish:Copper-coated
Applications:Robotic Welding, Automotive, General Fabrication
Brand:Hobart
Diameter:0.045
AWS Spec:ER70S-3
Packaging Description:600lb robo pak
Weld Process:MIG
Polarity:DC+
Grade:S3 Copper Coated

INCLUDED

  • 1 x 600 lb Robo Pak of Hobart Quantum Arc 3 .045" MIG Wire

APPLICATIONS

  • Automotive frames and structural components
  • Robotic and automatic welding cells
  • General fabrication of clean mild steel
  • Metal furniture and storage bins
  • Railcar manufacturing
  • Light sheet metal fabrication
  • High-speed production welding
  • Agriculture equipment manufacturing

FAQ

Hobart Quantum Arc 3 is classified as AWS A5.18 ER70S-3.

It can be used with 100% CO2 or Argon/CO2 mixtures (typically 75% Argon / 25% CO2).

ER70S-3 has lower silicon and manganese levels, which reduces the formation of silicon islands (glassy deposits) on the weld bead, making it better for parts that will be painted.

Yes, since this is a 600 lb Robo Pak drum, you will typically need a drum payoff cone or hood and conduit to feed the wire to the feeder.

Yes, Hobart Quantum Arc 3 is copper coated to improve feedability and contact tip conductivity.

This specific product (SKU S307312-011) is 0.045 inches in diameter.

While it can handle very light mill scale, ER70S-3 wires like Quantum Arc 3 are best suited for clean, new steel. For rusty or dirty steel, an ER70S-6 wire would be a better choice due to higher deoxidizers.

It is widely used in automotive, railcar, agriculture, and general fabrication industries, particularly where robotic welding is employed.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet