ER70S-6 Mild Steel Mig Welding Wire / Solid welding wire .023", .030", .035" & .045"
Regular price
$30.95
Sale
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
- › High manganese & silicon deoxidizers for X-ray quality, porosity-free welds
- › Welds cleanly over light rust and mill scale
- › Smooth, stable arc with low spatter and minimal slag
- › Copper-coated for steady wire feeding and reliable electrical contact
- › 70,000 psi tensile class — versatile general-purpose mild-steel wire
- › Available on 10, 33, and 44 lb spools, plus multi-roll and pallet quantities
Ideal Applications
- › General fabrication and structural steel
- › Automotive body, chassis, and exhaust repair
- › Heavy equipment, trailers, and farm machinery
- › Manufacturing, maintenance, and repair (MRO)
- › 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) |
Typical Chemical Composition
Typical all-weld-metal analysis (wt %). Single values are maximums; iron is the balance.
| Element | Typical Wire (wt %) |
|---|---|
| Carbon (C) | 0.06 – 0.15 (typ. 0.08) |
| Manganese (Mn) | 1.40 – 1.85 (typ. 1.55) |
| Silicon (Si) | 0.80 – 1.15 (typ. 0.90) |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.035 max |
| Copper (Cu) | 0.50 max |
| Iron (Fe) | Balance |
Mechanical Properties
Typical as-welded all-weld-metal properties; values meet or exceed AWS A5.18 minimums.
| Tensile Strength | 70,000 psi (480 MPa) min — typ. 80,000 psi (550 MPa) |
| Yield Strength | 58,000 psi (400 MPa) min — typ. 68,000 psi (470 MPa) |
| Elongation (2 in / 50 mm) | 22% min — typ. 26% |
| Charpy V-Notch Impact | 20 ft·lbf @ -20 °F min — typ. 60+ ft·lbf |
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.
This product can expose you to chemicals including manganese, which is known to the State of California to cause birth defects or other reproductive harm. Welding fumes from this product can also expose you to chemicals known to cause cancer. For more information go to www.P65Warnings.ca.gov.