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SUP604544 - Super 6 ER70S-6 .045 Mild Steel MIG Wire 20kg Spool

Packaging: 20kg spool
$4.37/kg $54.60/20kg spool only $2.73/kgSave 38%

In stock

OVERVIEW

Premium Quality ER70S-6 Solid MIG Wire for Professional Fabrication

Elevate your welding projects with the Super 6 ER70S-6 .045" (1.2mm) MIG Welding Wire, packaged in a substantial 20kg spool for extended runtime. This solid mild steel wire is engineered to meet the rigorous demands of modern fabrication shops, offering a blend of high tensile strength, excellent ductility, and superior operator appeal. Classified under AWS A5.18, this wire is the industry standard for welding carbon and low-alloy steels, providing a versatile solution for a wide array of metalworking tasks.

Enhanced Deoxidation for Clean Welds

The "S-6" designation signifies a higher level of silicon and manganese compared to S-3 or S-2 wires. These added elements act as powerful deoxidizers, scavenging oxygen and impurities from the molten weld pool. This characteristic makes the Super 6 ER70S-6 particularly forgiving when welding on base materials that have light rust, mill scale, or other surface contaminants. The result is a cleaner, porosity-free weld deposit with excellent mechanical properties. Additionally, the high silicon content contributes to a more fluid weld puddle, allowing for better "wetting out" at the toes of the weld and a flatter, more aesthetically pleasing bead profile.

Smooth Feeding and Low Spatter

Welders know that wire feeding issues can kill productivity. The Super 6 wire features a precision copper coating that reduces friction inside the MIG gun liner and ensures optimal electrical contact at the tip. This results in a stable arc with minimal sputtering, even at higher amperages. The low spatter generation translates to less time spent grinding and cleaning finished parts, improving overall shop efficiency. The 20kg spool size is ideal for industrial wire feeders, reducing the frequency of changeovers compared to standard 15kg spools.

Ideal for Spray and Short-Circuit Transfer

The .045" diameter is a versatile size, capable of handling thin gauge sheet metal in short-circuit transfer mode (with lower voltage) or heavy plate in spray transfer mode (with higher voltage and Argon-rich gas). This flexibility makes it a go-to consumable for:

  • General structural steel fabrication
  • Heavy equipment manufacturing and repair
  • Automotive chassis and suspension work
  • Pipe welding
  • Tank and vessel fabrication

Compatible with standard CV (Constant Voltage) power sources, this wire runs smoothly on DCEP (Direct Current Electrode Positive) polarity. Whether you are using straight CO2 for maximum penetration and economy, or a C25 (75% Argon / 25% CO2) mix for a premium finish, the Super 6 ER70S-6 delivers consistent, high-quality results bead after bead.

Additional Information
Brand:Super 6 - Josef
Aws Spec:ER70S-6
Diameter:0.045"
Packaging:20 kg Spool
Grade:S6 Copper Coated
Weld Process:MIG (GMAW)
Polarity:DC, DCEP
Material Composition:Mild Steel
Wire Diameter:0.045" (1.2mm)
Wire Type:Solid
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Spool Size:20 kg (44 lb)
AWS Classification:ER70S-6
Wire Finish:Copper-coated
Welding Position:All Position
Tensile Strength:70,000 psi (min)
Packaging Description:20kg spool

INCLUDED

  • 1 x 20kg (44lb) Spool of Super 6 ER70S-6 .045" MIG Wire

APPLICATIONS

  • Structural steel fabrication
  • General metal fabrication and manufacturing
  • Automotive frames and bodies
  • Heavy equipment repair (farm and construction machinery)
  • Sheet metal work
  • Pressure vessels and tanks
  • Pipe welding

FAQ

For ER70S-6 wire, you can use 100% CO2 for deep penetration and lower cost, or an Argon/CO2 blend (commonly 75% Argon / 25% CO2) for a smoother arc, less spatter, and better bead appearance.

ER70S-6 contains higher levels of silicon and manganese deoxidizers than ER70S-3. This makes S-6 better suited for welding on dirty, rusty, or mill-scaled steel, whereas S-3 is typically used on clean, new steel.

This is a solid MIG wire. It requires an external shielding gas (like CO2 or Argon mix) to protect the weld pool from the atmosphere.

Solid MIG wire like the Super 6 ER70S-6 is welded using DCEP (Direct Current Electrode Positive), also known as Reverse Polarity.

This is a 20kg (approx. 44lb) spool, which typically uses a standard 12-inch (300mm) diameter spool hub. It fits most industrial-sized MIG welders and wire feeders. It will not fit small hobby welders that only take 2lb or 10lb spools without an adapter or external stand.

The .045" (1.2mm) diameter is generally suitable for welding material thicknesses from approximately 1/8" (3mm) up to 1/2" (12mm) or thicker with multiple passes.

Yes, the Super 6 ER70S-6 wire is copper-coated. This coating improves electrical conductivity, aids in smooth feeding, and protects the wire from rusting while in storage.