
When your project involves heavy steel, cold weather, and critical structural joints, you need a wire that doesn't just meet the spec—it needs to run smoothly so you can focus on the puddle. The Hobart Fabco 812C is that wire. Designed for welders who tackle shipbuilding, heavy equipment repair, and structural steel erection, this .045-inch flux-cored wire is built to perform under pressure. It runs on straight CO2, which keeps your gas costs down while delivering the deep penetration you need for thick plate.
What sets the Fabco 812C apart in the shop or the field is its "operator appeal." We know that fighting a erratic arc or struggling with runny puddles in the vertical position kills productivity. Hobart has formulated this wire with a fast-freezing slag system that acts like a shelf, holding the puddle in place when you are welding vertical-up. The arc is smooth and consistent, producing a flat bead profile with excellent tie-in at the toes. Plus, the slag is designed to peel off easily—often curling up on its own—saving you time with the chipping hammer and wire wheel.
The "C" in 812C stands for the 1% Nickel content, which gives your welds the toughness they need to survive in freezing temperatures without cracking. Whether you are repairing an excavator bucket in winter or welding braces on an offshore rig, this wire ensures the metal holds up. And because moisture is the enemy of quality welds, Hobart ships this wire in Vacuum Packed Spools (VPSP). This means when you crack open that foil seal, you are getting fresh, dry wire that hasn't absorbed humidity from the warehouse, ensuring you don't get porosity on your first few beads.
This 33lb spool fits standard industrial feeders and is ready to go for all-position work. If you are looking for a wire that combines the cost-effectiveness of CO2 shielding with the high-performance mechanical properties of a low-alloy filler, the Fabco 812C is the reliable choice for your next heavy fabrication job.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:0.045 in |
| Packaging Description:33lb spool |
| Spool Size:33 lb Spool |
| Weld Process:Flux-Cored (FCAW) |
| AWS Spec:E81T-1 |
| Polarity:DCEP |
| Position:All Position |
| Full AWS Classification:E81T1-Ni1C-J H4 |
| Shielding Gas:100% CO2 |
| Alloy Content:1% Nickel |
| Tensile Strength:80,000 psi (Nominal) |
| Impact Toughness:20 ft-lbs at -40°F |
| Packaging Type:Vacuum Packed Spool (VPSP) |
| Current Type:DCEP |





