Stellite® 1 is a highly wear-resistant alloy with excellent abrasion and corrosion resistance and is ideal for highly stressed components such as pump sleeves, slide rings, bearing and expeller screws. Its hardness is maintained even at temperatures above 760 °C. Due to the high proportion of primary carbides, Stellite® 1 is particularly suited to applications with extreme low-angle erosion. Due to the low ductility, low cooling stress should be ensured during casting and build-up welding. Surface finishing is exclusively by grinding. Stellite® 1 is corrosion-resistant in sea water and chloride-containing media and predominantly shows pitting corrosion instead of general mass loss. Additional corrosion information is available on request.

Stellite™ 6 is the most widespread wear-resistant cobalt alloy and is characterised by good all-round performance. It is regarded as the industrial standard for general wear protection applications, has excellent resistance to many forms of mechanical and chemical stress across a wide temperature range, and retains appropriate hardness and wear resistance up to a temperature of 500 °C (930 °F). Furthermore, it has good resistance to impact and cavitation erosion. Stellite™ 6 is ideally suited to several weld deposition methods. Typical applications are valve seats and valve spools, pump shafts and bearings, erosion protection and rolling gear pairs. Stellite™ 6 is frequently used in self-mating configurations.

Stellite™ 6 is a hypoeutectic alloy, which is also ideally suited to sliding wear applications such as sockets and sleeves in non-lubricated environments.

Stellite™ 20 is the most abrasion-resistant standard cobalt-based alloy. In addition, it has good corrosion resistance. Stellite™ 20 is a hypereutectic alloy optimised for abrasive wear and slurry erosion, and is of crucial importance for industries such as mining, oil sand processing and hydroelectric power plants.

Although it has low impact resistance, it is often the only solution for specific applications, such as slurry pumps or chemically resistant parts. Typical applications are pump sleeves, rotation sealing rings, wear plates, bearing bushing and workpiece supports for centreless grinding machines.

Stellite™ 21 consists of a cobalt-chromium-molybdenum alloy matrix (CoCrMo) with dispersed carbides. These strengthen the alloy and increase its hardness, but also reduce its ductility. Type, shape, size and distribution of the carbides are strongly influenced by the thermomechanical history of the alloy. Therefore, the mechanical properties of Stellite™ 21 strongly depend on the production process and subsequent heat treatments. Due to the low volume fraction of carbides, the cobalt alloy matrix dominates the properties. Stellite™ 21 has excellent resistance to cavitation, pitting, galling and sliding wear, but is not recommended for extreme abrasion. The surface can severely work harden during wear or even during machining. Therefore, the use of suitable finishing tools and techniques is important to achieve optimum results. Stellite™ 21 is characterised by excellent resistance to thermal and mechanical shock.

Stellite™ 21 is resistant to oxidising and reducing gas atmospheres up to 1150 °C (2100 °F). As molybdenum (Mo) is the ternary alloying element instead of tungsten (W), it is more resistant to reducing or complex corrosive environments (e.g. sulphuric acid, hydrochloric acid and sour gas) than the cobalt-chromium-tungsten alloys (CoCrW) such as Stellite™ 6.

Stellite™ 21 is perfectly suited to cryogenic valve components, for which resistance to high wear and high thermal stress are significant.

This material has excellent sliding wear resistance, comparable to that of StelliteTM 21. It has excellent corrosion resistance, which almost matches that of Nistelle CTM alloys, and is listed in NACE MR0175 (ISO 15156) for use in acid environments. Furthermore, Ultimet™ has high tensile strength, comparable to many duplex stainless steels, combined with excellent impact strength and ductility.

Ultimet™ provides excellent resistance to cold welding, cavitation erosion, slurry erosion and droplet erosion. Ultimet™ has excellent weldability without susceptibility to cracking, and can usually be used without pre-heat for cladding of critical surfaces to ensure their corrosion and wear resistance. Ultimet™ is ideally suited to use in the oil and gas industry (NACE MR0175 / ISO 15156), the shipping industry as well as the chemical industry.

Tribaloy™ T-400 is a cobalt-based alloy with excellent wear resistance and good corrosion resistance, ideal for applications such as turbochargers, seals and pump components. The alloy gets its high hardness and resistance against abrasion, mostly in non-lubricated sliding wear and corrosion, from intermetallic MoSi phases. Furthermore, T-400C provides improved oxidation and high temperature resistance.

Tribaloy™ T-800 is harder and more wear-resistant than T-400 and was specifically developed for similar applications at higher temperatures. Thanks to its high chromium content, T-800 has excellent oxidation and corrosion resistance and is particularly suited to valve seats, mechanical seals and thrust rings.

TriboDel Pro minimizes wear even under extreme conditions and significantly extends the service life of critical components. Where conventional alloys reach their limits, TriboDel Pro offers a high-performance, durable, and robust solution.

Nistelle™ 625 is a nickel-chromium alloy offering improved mechanical properties as well as excellent corrosion resistance due to additions of molybdenum and niobium without additional hardening being required. It can be compared to the INCONEL® 625 alloy. The Nistelle alloy is particularly characterised by its resistance to aggressive corrosion environments. This makes it ideal for use in the offshore industry as well as in maritime applications. Due to its heat resistance, Nistelle™ 625 is also used in aerospace as well as racing in combustion chambers and exhaust systems. Further application areas are the chemical and nuclear industry, for example in heat exchangers or reactor vessels, as well as systems for emission control and flue gas cleaning.

Nistelle™ 718 is a nickel-chromium alloy, with alloying additions of iron, niobium, molybdenum, aluminium and titanium. It combines high strength, excellent corrosion resistance and outstanding weldability – without cracking. Nistelle™ 718 can be compared to Inconel® 718. Thanks to its stable structural conditions and age hardening ability, the alloy retains its high strength over a broad temperature range and provides excellent fatigue strength as well as creep rupture strength. Therefore, Nistelle™ 718 is versatile in its use: in aerospace (e.g. turbine disks, exhaust components), energy and nuclear technology (e.g. reactors, heat exchangers) as well as in the offshore field and motorsport.

Deloro™ 22 is a nickel-based alloy in powder form with excellent corrosion, abrasion and wear resistance. It is ideally suited to spray and powder welding processes up to approx. 600 °C and is used mainly for the repair and coating of glass-forming parts as well as viscous build-up alloy on edges of cast and steel components. The workable, non-magnetic layer can easily be reworked by hand. Its high wear resistance is based on hard boride and silicide phases. Due to its low melting point, Deloro™ 22 enables a smooth, hard-wearing surface and remains temperature-stable up to approx. 315 °C. It is similar to Deloro™ 25, but is slightly softer.

Deloro™ 56 nickel-based alloys for hardfacing offer excellent corrosion, abrasion and wear resistance up to 600 °C. Thanks to their wide melting range, they are ideally suited to spray and powder welding. The alloys based on nickel, chromium and boron create dense, hard and corrosion-resistant layers with very good melting properties. They are generally machineable – with the exception of DELORO™ 60, which is only sandable Deloro™ 56 is particularly characterised by very high hardness, and is preferably used for applications such as spray-fuse of glass-forming pins. These alloys are ideally suited to complex surface stresses under high temperatures.

The iron-based alloys of the Delcrome™ 300 series provide excellent sliding wear and cavitation resistance as well as natural corrosion resistance. Delcrome™ 316L is a low-carbon, austenitic stainless steel, minimising undesirable carbide precipitation on the grain boundaries. Laser cladding creates a fine microstructure with low dilution. The alloy is easy to weld and available as powder, wire or rod. It is suited to classic weld processes as well as to thermal spray or laser cladding. Thanks to the presence of molybdenum, Delcrome™ 316L exhibits very good resistance to pitting corrosion and stress corrosion, even in moist chloric, nitric or hydrochloric acid. Typical fields of application are the oil, gas and shipping industry.

Delcrome 90 is a specifically developed white cast iron, which provides a fine microstructure and high corrosion resistance due to carbide modifiers. It is particularly suited to severely abrasive wear, as that found in mineral processing and mining. The alloy can be made suitable for further processing with annealing. Subsequent hardening achieves a very high wear resistance. Delcrome™ 90 is less corrosion-resistant than stainless steel, but more hard-wearing than soft steel. Typical fields of application are mill lining, rotors and wear plates. Due to its brittleness, it should be avoided for impact loads. The alloy can be used as inherently stable components or hard coatings.