| Duroxite 300 Wire is a flux-cored welding wire for hardfacing components subject to extremely severe sliding wear applications using an open-arc or gas shielded arc welding processes. The weld deposit of Duroxite 300 Wire consists of specially formulated abrasive materials employing a uniform glass forming melt chemistry that allows high undercooling to be achieved. Duroxite 300 weld overlay contains a unique high volume of ultra-fine tungsten niobium- molybdenum-rich complex borocarbide phase with a grain size refined down to 500 nm. The borocarbides are completely wetted in a ductile matrix preventing premature pull-out delamination, crack nucleation and bridging. This results in a product with significantly improved service life that maintains high toughness in severe sliding wear applications. Duroxite 300 Wire is suitable for single or double-layer deposit with both stringer and oscillation beads. It naturally reveals stress-relief cracks after welding. Preheating, inter-pass temperature, and post-weld heat treatment are as needed according to the base metal recommendations. If welding fume generation is a concern, a gas shielded arc welding process is recommended. A slight drag angle is preferred for better performance while welding. If welding with downhill or uphill positions, reduced wire feed speed and voltage are preferred. Duroxite 300 Wire is designed to weld on carbon steel or low alloy steel substrates experiencing severe wear for both dry and wet (slurry) abrasive environments at ambient or elevated temperatures up to 600°C (1100°F). Duroxite 300 Wire is not compatible with austenitic alloys. Duroxite 300 Wire is an excellent alternative to tungsten carbide hardfacing wire. Key Benefits - Extreme wear resistance in dry and wet abrasive environments with a high degree of toughness.
- Cost effective alternative to tungsten carbide wire with equivalent service life and better impact resistance.
- Maintains a consistent wear resistance from surface down to 75% of the overlay.
- Has uniform through-thickness hardness of 67 to 70 HRC for single and double-layer overlay.
- Thinner thickness overlay applied compared to traditional chromium carbide overlay (CCO) or complex carbide overlay which result in a lighter weight product while increasing service life.
Typical Applications: Duroxite 300 Wire is mainly designed to use for hardfacing any steel substrates (not compatible with austenitic alloys) undergoing extremely severe wear in mining, power generation, cement, oil sand, steel production, waste handling, and pulp and paper industries. Typical examples include: - Mining: Crusher rolls, Skip liners, Slurry pipes, Slurry pumps, Conveyor chains, Excavator bucket liners
- Cement: Fan blades, Deflector blades, Cranker crushers
- Oil sands: Surge bins, Feed chutes, Slurry pipes, Slurry pumps
- Steel: Ore chutes
- Power: Screw augers, Wear liner plates, Ash handling equipment liners
- Agriculture: Grain shredding hammers, Sugar mill knives, Row crop sweeps
- Oil and Gas: Fracking blender pumps
- Construction: Snow plow shoes, Demolition tools
Data provided by SSAB. |
