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69100506 - Bonarc ER70S-6 .023 Solid MIG Welding Wire - 5kg Spool

Packaging: 5kg tube
$13.36/kg $41.75/5kg tube only $8.35/kgSave 37%

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OVERVIEW

High-Performance ER70S-6 Solid MIG Wire for Precision Applications

The Bonarc ER70S-6 .023" (0.6mm) Steel Solid MIG Wire is a premium-grade consumable designed for general purpose gas metal arc welding (GMAW). Engineered with a higher content of silicon and manganese, this wire acts as a powerful deoxidizer, making it an excellent choice for welding on base metals that may have light rust, mill scale, or oil. The chemical composition ensures a highly fluid weld pool, resulting in excellent wetting action and a flat bead profile that requires minimal grinding. This specific alloy classification (ER70S-6) is the industry standard for structural steel fabrication, offering a perfect balance of tensile strength and ductility.

One of the standout features of this Bonarc wire is its precision layer winding. Unlike random-wound spools that can snag or tangle during high-speed welding, this 5kg spool is meticulously wound to ensure smooth, uninterrupted feeding through the liner and contact tip. This consistency is critical for maintaining a stable arc and preventing burn-back, especially when working with the fine 0.023" diameter. The wire is copper-coated to improve electrical conductivity and protect against corrosion during storage, ensuring that the wire remains fresh and ready to weld even after periods of downtime.

This 0.023-inch diameter variant is specifically optimized for low-amperage applications. It allows operators to maintain a stable short-circuit transfer mode, which is essential for welding thin-gauge materials without excessive heat input or distortion. Whether utilized in a small fabrication shop or a large industrial manufacturing environment, the Bonarc ER70S-6 delivers reliable mechanical properties, including high yield strength and impact toughness, meeting the rigorous demands of AWS A5.18 standards.

Key Technical Benefits:

  • Superior Deoxidizing: High Mn/Si levels combat porosity caused by surface contaminants.
  • Stable Arc Characteristics: Promotes a smooth, consistent arc with minimal spatter generation.
  • Versatile Shielding Gas Compatibility: Performs exceptionally well with 100% CO2 for deep penetration or Argon/CO2 blends for a cleaner appearance and reduced spatter.
  • Optimized Packaging: The 5kg (11lb) spool size fits most compact and portable MIG welding machines, making it a versatile choice for field work and shop use alike.
Additional Information
Weld Process:MIG
Grade:S6 Copper Coated
Diameter:0.023
Packaging:5kg spool, 11lb spool
AWS Spec :ER70S-6
Polarity:DC+
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2 Mix, CO2
Material Composition:Mild Steel
Spool Size:11lb, 5kg
Applications:Automotive, General Fabrication, Sheet Metal
----- new values below ----
Wire Type:Solid
Shielding Gas Requirement:CO2, Argon/CO2 Mix
Material Composition:Mild Steel
Spool Size:5kg, 11lb
Applications:Sheet Metal, Automotive, General Fabrication
brand:bonarc
aws-spec:er70s-6
diameter:0-023
grade:s6-copper-coated
packaging:5kg-spool
weld-process:mig
polarity:dc

INCLUDED

  • 1 x 5kg (11lb) Spool of Bonarc ER70S-6 .023" MIG Wire

APPLICATIONS

  • Automotive body panel repair and restoration
  • HVAC ductwork fabrication
  • Light gauge sheet metal fabrication
  • General maintenance and repair (MRO)
  • Ornamental ironwork and hobbyist projects
  • Manufacturing of light structural frames

FAQ

For the best balance of bead appearance and penetration, a mixture of 75% Argon and 25% CO2 (C25) is recommended. However, this ER70S-6 wire also performs very well with 100% CO2, which provides deeper penetration but slightly more spatter.

Yes, the ER70S-6 classification indicates higher levels of silicon and manganese, which act as deoxidizers. This makes it more capable of handling light to moderate rust and mill scale compared to ER70S-3 wire, though cleaning the base metal is always best practice.

This is a 5kg (approximately 11lb) spool. It typically uses a standard 2-inch (50mm) arbor hole and has an approximate diameter of 8 inches (200mm), fitting most portable and compact MIG welders.

This is a solid wire, so it requires DCEP (Direct Current Electrode Positive), also known as Reverse Polarity. Ensure your ground clamp is negative and your torch is positive.

Yes, ER70S-6 has a minimum tensile strength of 70,000 psi, making it suitable for structural applications on mild steel, provided the material thickness is appropriate for the .023" diameter wire (usually multi-pass for thicker sections).

Yes, as long as your spool gun accepts 4-inch or 8-inch spools (check your gun's capacity) and is equipped with the correct drive rolls and contact tip for .023" wire.

Precision layer winding ensures the wire is spooled evenly, preventing overlaps and tangles. This results in smoother feeding, less drag on the drive motor, and a more consistent arc, which is critical for fine diameter wires.

No, this is a solid steel wire. It requires an external shielding gas (CO2 or Argon/CO2 mix) to protect the weld pool. It cannot be used gasless.