Surface Engineering’s Carboride Hardfacing products are designed to resist severe abrasion in combination with excellent corrosion resistance, adhesive wear resistance, erosion resistance, and high temperature resistance up to 1100° Fahrenheit.
The deposits contain up to 65% Fused Tungsten Carbide in Nickel-Chrome-Silicon-Boron matrices ranging in hardness from Rc18 to 62 for variances in toughness and impact requirements. These self-fluxing alloys containing Boron provide for high bond strengths between the We particles and the matrix eliminating wear caused by the release of the hard We particles upon impact. The composites provide for easy of weldability and the deposits are smooth and uniform. Our Carboride products may be applied by GTAW, SMAW, PTA, Oxy-Acetylene, Spray & Fuse, Manual Torch, and our most popular composition of 40% Nickel-ChromeBoron and 60% Tungsten Carbide is even available in in the form of MIG wire.
Typical Applications
- Stabilizers
- Mixers
- Rendering
- Centrifuges
- Wear Rings
- Paper & Pulp
- Asphalt Processing
- Dredging & Mining Equipment
- Feed Screws
- RockBits
- Pump Parts
- Tool Joints
- Recycling
- Etc.
Products
Surface’s Carboride product compositions are designated by five (5) digit numbers, whereas the first two digits indicate the percentage of matrix, the second two indicate the percentage of Tungsten Carbide, and the last digit indicates the matrix hardness. Hence, Carboride 40606 would be a composition of 40% Re 60 NiCrSiB and 60% Tungsten Carbide. Compositions may be customized to suit individual application requirements. Contact our Customer or Technical Service Departments for more information.
Microstructure
This 5OX Photomicrograph of our Carboride 40606 depicts the large concentration of undissolved Fused Tungsten Carbide particles within our Re 55 Nickel-Chrome-Boron Matrix.
The deposit was made via MIG with 1/16″ diameter wire at 22 Volts and 110 Amps. Pure Argon was used as a shielding gas.
| Composites | Compositions | Product Availability | ||||||
|---|---|---|---|---|---|---|---|---|
| Base%/WC%/HRC | Matrix Type/Carbide Content & Type | Rod | Elect. | Wire | M/T* | S/F* | PTA | Laser |
| 40604 | NiCrB* 40Rc 60% Cast/Sintered/Macro | X | X | X | X | X | X | X |
| 50506 | NiCrB* 60Rc 50% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 65354 | NiCrB* 40Rc 35% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 70306 | NiCrB* 60Rc 30% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 85154 | NiCrB* 40Rc 15% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 40603 | NiSiB* 30Rc 60% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 35655 | NiCrB* 50Rc 65% Cast/Sintered/Macro | X | X | X | X | X | X | |
| 25756 | NiCrB* 60Rc 75% Cast/Sintered/Macro | X | X | X | X | |||
| 60404 | NiCrB* 40Rc 40% Cast/Sintered/Macro | X | X | X | X | X | X | X |
| *Matrix’ of various Rc available: Rc 30-62 | 1/8 – 1/4″ | 1/8 – 1/4″ | 0.62″-7/64″ | Manual Torch | Spray Fuse | Plasma Transfer Arc | Laser | |