HYW ER70S-6 MIG/MAG Welding Wire is a premium copper-coated solid carbon-steel wire supplied on 10 lb, 33 lb, and 44 lb spools, with multi-roll and pallet quantities available. Its high manganese and silicon content provides strong deoxidizing power for X-ray quality, porosity-free welds — even over light rust and mill scale — with a smooth, stable arc and low spatter for clean, general-purpose fabrication.
Key Features
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› High manganese & silicon deoxidizers for X-ray quality, porosity-free welds
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› Welds cleanly over light rust and mill scale
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› Smooth, stable arc with low spatter and minimal slag
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› Copper-coated for steady wire feeding and reliable electrical contact
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› 70,000 psi tensile class — versatile general-purpose mild-steel wire
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› Available on 10, 33, and 44 lb spools, plus multi-roll and pallet quantities
Ideal Applications
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› General fabrication and structural steel
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› Automotive body, chassis, and exhaust repair
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› Heavy equipment, trailers, and farm machinery
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› Manufacturing, maintenance, and repair (MRO)
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› Single- and multi-pass welding on carbon and low-alloy steels
Technical Specifications
| AWS Classification |
AWS A5.18 / A5.18M ER70S-6 |
| Tensile Strength |
70,000 psi (480 MPa) minimum |
| Wire Type |
Solid, copper-coated carbon (mild) steel |
| Process |
MIG / MAG (GMAW) |
| Polarity |
DC+ (DCEP / reverse polarity) |
| Shielding Gas |
100% CO₂ or 75–80% Ar / 20–25% CO₂ |
| Packaging |
10 lb / 33 lb / 44 lb spools (multi-roll & pallet available) |
Available Sizes & Recommended Amperage
| Diameter |
Recommended Amperage |
| .023" (0.6 mm) |
30 – 90 A |
| .030" (0.8 mm) |
40 – 145 A |
| .035" (0.9 mm) |
50 – 180 A |
| .045" (1.2 mm) |
75 – 350 A |
Recommended amperage ranges are general guidelines; optimal settings vary with base-metal thickness, joint design, shielding gas, and welding position. Store wire in a dry location to prevent oxidation and ensure smooth feeding.
