Our water-atomized Tribaloy™ powders, T-400 and T-800, are advanced Cobalt-Molybdenum-Chromium-Silicon (Co-Mo-Cr-Si) alloys. These materials achieve exceptional hardness through the formation of high fractions of intermetallic Laves phases. They also deliver outstanding oxidation and corrosion resistance due to their specialized design chemistry.
Tribaloy™ Powder Applications
Tribaloy™ alloys are used extensively as hard-phase particles in powder metallurgy of automotive valve seats and guides as well as for other components in the drivetrain requiring enhanced wear performance at elevated temperatures. Tribaloy™ alloys are also used extensively for coating and cladding applications in a variety of markets ranging from industrial to aerospace.
Tribaloy™ T-400 Powder
Our T-400 powder is specifically engineered to deliver outstanding wear resistance in metal-to-metal contact at high temperatures. Its high Cobalt (Co) and Molybdenum (Mo) content, combined with a significant Laves phase fraction, ensures exceptional hardness while maintaining reasonable workability. Additionally, the alloy forms a relatively lubricious surface at elevated temperatures, due to the formation of molybdenum oxides at high temperatures.
Tribaloy™ T-800 Powder
Our Tribaloy™ T-800 powder is optimized for the highest service temperatures within the alloy family, with an operational capability reaching up to 1800°F (1000°C) in specific environments. By replacing an additional 10% of the Cobalt (Co) content in T-400 with Chromium (Cr), T-800 offers enhanced oxidation resistance. This increased protection comes with a trade-off of slightly reduced workability compared to the higher Co content of T-400.
Tribaloy™ is a registered trademark of Kennametal Inc.