Weldcote Metals MIG Welding Wire, .035"X44Lbs

Weldcote Metals MIG Welding Wire, .035"X44Lbs

The Weldcote Metals ER70S-3 MIG Welding Wire (.035" / 44 lb) is a copper-coated solid MIG wire designed for single-pass and multi-pass welding, with chemistry that provides sufficient deoxidation to help weld over light mill scale using 100% CO₂ or mixed shielding gases. The copper coating helps protect the wire surface, and it produces a slag-free weld bead for easier post-weld cleanup. Compared to other options, it has less silicon and is noted as not as smooth, while typical base metal specifications are often similar to ER70S-2.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 70S603544
• Brand: Weldcote Metals
• Product Type: MIG welding wire (solid wire)
• AWS Classification: ER70S-3
• Wire Diameter: .035"
• Spool Weight: 44 lb
• Weld Pass Capability: Single-pass and multi-pass
• Deoxidation / Mill Scale: Sufficient deoxidation for welding over light mill scale
• Shielding Gas Compatibility: 100% CO₂ or mixed shielding gases
• Coating: Copper-coated (surface protection)
• Weld Characteristics: Slag-free bead for easier post cleaning
• Notes: Less silicon and not as smooth
• Typical Base Metal Specs: Often similar to ER70S-2

Ideal For

• General MIG welding where ER70S-3 is specified
• Jobs requiring reliable performance with 100% CO₂ or mixed gas shielding
• Welding over light mill scale when extra deoxidation is beneficial
• Fabrication work needing slag-free welds for faster cleanup
• Single- or multi-pass applications on base metals commonly used with ER70S-2 specs