Skip to Main Content
Canadian
Canadian owned and operated

S305412-045 - Hobart HB-28 ER70S-6 .045" MIG Welding Wire - 45lb Spool

Packaging: 45lb spool
$6.62/lb $148.95/45lb spool only $3.31/lbSave 50%

Usually ships within 3-5 business days

OVERVIEW

Smooth Feeding, Low Spatter MIG Wire

Welders know that fighting your wire feeder is the quickest way to ruin a day's production. The Hobart HB-28 .045" MIG wire is built to eliminate those headaches. With its superior copper coating, this wire glides through your gun liner and contact tip, giving you a consistent, stable arc that goes exactly where you point it. Say goodbye to stuttering feeds and burn-backs; this wire is designed for smooth performance in the shop or the field.

If you are welding on steel that isn't perfectly clean, the HB-28 is your best friend. It is an ER70S-6 class wire, which means it is loaded with extra deoxidizers (manganese and silicon). These additives act like cleaning agents in the weld puddle, floating out impurities from rust or mill scale so you don't end up with porosity. The result is a solid, strong weld even on less-than-perfect metal. It wets out beautifully at the toes, leaving a flat bead profile that looks professional and ties in easily on multi-pass welds.

This 45lb spool is perfect for your shop's wire feeder, giving you plenty of runtime between changeovers. It runs great on straight CO2 if you need to dig deep on thicker plate, but it really shines with a 75/25 Argon/CO2 mix for that classic "bacon frying" sound and minimal spatter cleanup. From farm implements and auto frames to heavy structural beams, the Hobart HB-28 gives you the control and quality you need to lay down perfect beads every time.

Why Choose Hobart HB-28?

  • Forgiving on Dirty Metal: Handles rust and scale better than S3 wires.
  • Less Cleanup: Low spatter formula means less time grinding.
  • All-Position Capable: Great for flat and horizontal fillets, and works out of position with the right settings (short circuit).
  • Versatile: Works on everything from thin sheet metal (in short circuit) to heavy plate (in spray transfer).
Additional Information
Brand:Hobart
Diameter:0.045"
AWS Spec:ER70S-6
Grade:S6 Copper Coated
Packaging:45 lb Spool
Weld Process:MIG (GMAW)
Polarity:DCEP
Material Composition:Mild Steel
Wire Diameter:0.045"
Wire Type:Solid
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Spool Size:45 lb
AWS Classification:ER70S-6
Wire Finish:Copper-coated
Welding Position:All Position
Tensile Strength:70,000 psi (min)
Packaging Description:45lb spool

INCLUDED

  • 1 x 45lb Spool of Hobart HB-28 .045" MIG Wire

APPLICATIONS

  • General Fabrication and Structural Steel
  • Automotive Body and Frame Repair
  • Pressure Vessels and Piping Systems
  • Heavy Equipment and Farm Implements
  • Storage Tanks and Railcars
  • Shaft Build-up and Repair
  • Steel Castings

FAQ

Hobart HB-28 is designed to work with both 100% CO2 and Argon/CO2 mixtures (typically 75% Argon / 25% CO2). 100% CO2 provides deeper penetration, while Argon mixes offer a smoother arc and less spatter.

This wire is classified as ER70S-6 according to AWS A5.18 standards.

Yes, the ER70S-6 classification indicates high levels of silicon and manganese deoxidizers, which allow it to weld over moderate rust and mill scale without causing porosity.

Hobart HB-28 is a solid wire designed for DCEP (Direct Current Electrode Positive), also known as Reverse Polarity.

No, Hobart HB-28 is a solid MIG wire and requires an external shielding gas.

This specific product is 0.045 inches (approximately 1.2mm) in diameter.

This is a standard 45lb spool, typically used in industrial wire feeders and shop environments.

Yes, Hobart HB-28 is excellent for both single-pass and multi-pass welding applications due to its good wetting characteristics and slag-free finish.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet