Bonarc ER70S-6 .035 Solid MIG Welding Wire - 20kg Spool - Welders Helper
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Bonarc ER70S-6 .035 Solid MIG Welding Wire - 20kg Spool

$8.70/kg Save 29% ($2.49)$6.21/kg20 kg spool — $124.20

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OVERVIEW

Reliable Performance for General Fabrication

Upgrade your welding projects with the Bonarc 70S-6 .035 Steel MIG Wire, a dependable solid wire solution for welders who demand consistency and ease of use. This 20kg spool provides an ample supply of high-quality filler metal, perfect for busy workshops, automotive repair centers, and agricultural equipment maintenance. The .035-inch diameter is widely regarded as the most versatile size for general fabrication, offering the ability to weld thin sheet metal as well as thicker structural plates with a single setup.

The Bonarc 70S-6 is characterized by its smooth arc characteristics and forgiving nature. It is designed to bridge gaps effectively and provide excellent tie-in at the toes of the weld, reducing the risk of cold lap and undercut. The wire's chemistry meets the AWS A5.18 ER70S-6 standard, ensuring it delivers the necessary tensile strength (typically 70,000 psi minimum) for structural applications. Its copper-coated surface ensures optimal contact with the welding tip, promoting a stable arc start every time and minimizing burn-backs.

One of the standout features of this wire is its adaptability to different shielding gases. While it runs smoothly on 100% CO2, using a 75/25 Argon/CO2 mix unlocks its full potential, producing a buttery smooth arc with virtually no spatter. This makes it an excellent choice for applications where appearance counts, such as ornamental ironwork or visible automotive frames. The wire is layer-wound on a standard spool hub, ensuring compatibility with most industrial wire feeders and MIG welding machines.

Why Choose Bonarc 70S-6?

  • Versatile Application: Ideal for everything from car frames and trailer hitches to farm implements and general repairs.
  • User-Friendly: The stable arc and good puddle fluidity make it easier for welders of all skill levels to produce professional-looking results.
  • All-Position Capability: confidently tackle vertical and overhead welds using short-circuit transfer.
Additional Information
Brand:Bonarc
Diameter:0.035"
Aws Spec:ER70S-6
Grade:S6 Copper Coated
Packaging:20 kg Spool
Packaging Description:20kg-spool
Polarity:DC, DCEP
Weld Process:MIG (GMAW)
AWS Classification:ER70S-6
Wire Diameter:0.035"
Spool Size:20 kg (44 lb)
Material Composition:Mild Steel
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Wire Type:Solid
Welding Position:All Position
Item:MIG welding wire

INCLUDED

  • 1 x 20kg Spool of Bonarc ER70S-6 .035" Solid MIG Wire

APPLICATIONS

  • General structural steel fabrication
  • Automotive body and frame repair
  • Agricultural equipment manufacturing and maintenance
  • Sheet metal fabrication
  • Construction of storage tanks and pressure vessels
  • Pipe welding
  • Ornamental ironwork

FAQ

This wire can be used with 100% CO2 for deep penetration and cost savings, or a mix of 75% Argon / 25% CO2 for a smoother arc and less spatter.

Yes, the ER70S-6 classification indicates high levels of silicon and manganese deoxidizers, making it capable of welding over light to moderate rust and mill scale.

This is a 20kg spool, which is approximately 44 lbs.

This is a solid wire requiring DCEP (Direct Current Electrode Positive), also known as Reverse Polarity.

Yes, Bonarc 70S-6 is suitable for all-position welding (flat, horizontal, vertical, and overhead), typically using the short-circuit transfer mode for out-of-position work.

No, this is a solid MIG wire and requires an external shielding gas cylinder.

This wire is 0.035 inches (0.9mm) in diameter, a versatile size for thin to medium-thick steel.

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