FUSION Nb
NIOBIUM CARBIDE WELD WIRE FOR FINE & COURSE ABRASION
FUSION™ Nb
FUSION Nb is a complex high chromium cast iron welding wire for hardsurfacing components. Its combination of chromium & niobium carbides increase abrasion and impact resistance compared to classical chrome carbide deposits. It can withstand extremely serve abrasive wear and moderate impact. The deposit contains hard complex carbides in a tough matrix and performs remarkably well in both fine and coarse abrasion. This wire is best used for hardfacing components undergoing heavy wear from earth, sand or other abrasives.

FUSION™ Nb is a complex high chromium cast iron welding wire for hardfacing components. Its combination of chromium & niobium carbides increase abrasion and impact resistance compared to classical chrome carbide deposits. It can withstand extremely severe abrasive wear and moderate impact. The deposit contains hard complex carbides in a tough matrix and performs remarkably well in both fine and coarse abrasion. This wire is best used for hardfacing components undergoing heavy wear from earth, sand or other abrasives.
Common applications include:
- Bucket Teeth
- Brick Industry Components
- Dragline Buckets
- Fan Blades
- Rippers

Typical Deposit Characteristics
| Abrasion Resistance | Excellent |
| Hardness | HRC 62 – 64 |
| Impact Resistance | Excellent |
| Deposit Layers | 1-3 layers, 1 or 2 typical, 3 or more please consult JADCO for technical advice. |
| Position | Flat, Horizontal, Half-up, Half-down |
| Surface Cross Checks | Normal |
| Machinability | Non-machinable. Deposits can be ground. Care/consideration should be taken in grinding pressure and temperature to prevent damaging deposit surface. |
| Magnetic | |
| on Stainless Steel on Carbon Steel on Manganese Steel |
Slightly to none. Yes Yes |
| Hot Wear Applications | 600°F (300° C) |
Operational Characteristics / Welding Parameters
| Diameter | 1/16” (1.6 mm) |
| Current, Amp DCEP | 150 – 350 |
| Wire Feed Speed | 150 – 350 inches per minute |
| Voltage | 22 – 32 |
| Wire Extension, in | 3/4” – 1 1/2 |
| Shielding Gas | NONE REQUIRED -OR- 100% CO2 -OR- 75% Ar / 25% CO2. No shielding gas is required, however you may use gas to aid in arc transfer characteristics and cooling of welding torch. |
| Preheat / Interpass Temp. | For general use, area to be hardfaced should be preheated to 150 –300°F and you should not exceed a 550°F interpass temperature. When welding on manganese, limit interpass temp to 300°F or less. |
Typical All-Weld Metal Analysis
- C: 4.5 – 6.0
- Mn: 0.5 – 1.0
- Si: 0.5 – 1.0
- Cr: 20 – 25
- Nb: 5 – 10
Alloy Type
Chromium and Niobium carbides in an austenitic matrix.
Typical Applications
- Brick Industry Components
- Bucket Teeth
- Dragline Buckets
- Fan Blades
- Rippers
Standard Sizes & Packaging
Diameter: 1/16″ (1.6 mm)
Packaging: 33 lbs. Spools
DOWNLOAD THE SPECS
DO YOU NEED A PRINT OUT OF THE ABOVE INFORMATION?
We’ve made printing and presenting our information easy for you. Just download our Fusion NB Weld Wire & Rod Specification Document (PDF). If you need additional information, please contact us today!













