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
› Low-alloy 0.5% Mo solid wire for high strength and heat resistance
› 80,000 psi tensile class with strong impact values after PWHT
› Smooth, stable arc with low spatter and clean bead appearance
› Copper-coated for steady feeding and reliable electrical contact
› 44 lb spool for high-volume and production welding
Ideal Applications
› Structural steel — butt and fillet welding
› Boilers and pressure vessels, including 0.5% Mo heat-resistant steels
› Automotive and heavy-equipment fabrication
› 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)
Typical Chemical Composition
Typical all-weld-metal analysis (wt %). Single values are maximums; iron is the balance.
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.
WARNING
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.
