S305408-022 - Hobart HB-28 .035 ER70S-6 MIG Wire 10lb Spool

Hobart HB-28 .035" ER70S-6 Solid MIG Welding Wire (10lb Spool)

The Hobart HB-28 is a premium quality, copper-coated solid welding wire designed for the Gas Metal Arc Welding (GMAW) process. Classified as ER70S-6 by the American Welding Society (AWS), this wire is formulated with higher levels of manganese and silicon compared to standard S-3 wires. These added deoxidizers act as powerful cleaning agents within the weld pool, allowing the HB-28 to perform exceptionally well on base metals that may have light rust, mill scale, or oil present. This makes it an ideal choice for general fabrication, maintenance, and repair operations where perfect surface preparation is not always feasible.

Engineered for versatility, the HB-28 .035-inch wire operates smoothly with both 100% Carbon Dioxide (CO2) and Argon/CO2 shielding gas mixtures (typically 75% Argon / 25% CO2). When used with a C25 mix, operators will experience a spray-like transfer or smooth short-circuit transfer with minimal spatter and excellent bead aesthetics. The wire's copper coating is applied with precision to ensure superior electrical conductivity at the contact tip and to facilitate smooth feeding through the MIG gun liner, reducing the risk of feeding issues such as bird-nesting.

This 10lb spool is perfectly sized for portable MIG welders and shop machines that utilize standard 8-inch diameter spools. It is suitable for welding mild and carbon steels in all positions (depending on the mode of transfer). The HB-28 produces welds with high tensile strength (minimum 70,000 psi) and good ductility, ensuring structural integrity in applications ranging from farm implement repairs to automotive chassis work. Whether you are welding pressure vessels, tanks, or structural piping, the Hobart HB-28 delivers consistent, high-quality results with excellent wetting characteristics for uniform tie-in.

Key Technical Specifications:

• Classification: AWS A5.18 ER70S-6
• Diameter: 0.035 inches
• Weight: 10 lbs (4.54 kg)
• Shielding Gas: CO2 or Argon/CO2 Mix
• Current: DCEP (Direct Current Electrode Positive)