HYW ER80S-D2 MIG/MAG Welding Wire is a low-alloy, copper-coated solid wire supplied on a convenient 44 lb spool. Its 0.5% molybdenum chemistry delivers high tensile strength and excellent creep/heat resistance, making it the go-to filler for structural steel, boilers, and pressure vessels — with a smooth, stable arc and very low spatter for clean, code-quality welds.
Key Features
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› Low-alloy 0.5% Mo solid wire for high strength and heat resistance
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› 80,000 psi tensile class with strong impact values after PWHT
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› Smooth, stable arc with low spatter and clean bead appearance
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› Copper-coated for steady feeding and reliable electrical contact
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› 44 lb spool for high-volume and production welding
Ideal Applications
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› Structural steel — butt and fillet welding
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› Boilers and pressure vessels, including 0.5% Mo heat-resistant steels
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› Automotive and heavy-equipment fabrication
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› High-strength and code-governed steel components
Technical Specifications
| AWS Classification |
AWS A5.28 / A5.28M ER80S-D2 |
| Tensile Strength |
80,000 psi (550 MPa) minimum |
| Wire Type |
Solid, copper-coated low-alloy steel (0.5% Mo) |
| Process |
MIG / MAG (GMAW) |
| Polarity |
DC+ (DCEP / reverse polarity) |
| Shielding Gas |
100% CO₂ or 75–80% Ar / 20–25% CO₂ |
| Spool Weight |
44 lb (20 kg) |
Available Sizes & Recommended Amperage
| Diameter |
Recommended Amperage |
| .035" (0.9 mm) |
100 – 250 A |
| .045" (1.2 mm) |
150 – 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.
