Kennametal Stellite™ is in the unique position of being able to offer a multitude of solutions for the wear and corrosion problems that plague the refining industry. Whether the solution involves routine overlays of Stellite 6 or more complex remedies such as bimetallic castings, the staff of Kennametal Stellite will recommend and deliver the best solution to your problems.
Stellite solutions offer longer life, reduced unplanned down time, and reduced maintenance expenditures. Over its lifetime, a Stellite component will result in lower maintenance expense and less unplanned down time.
Typical applications in the refinery industry include: Nozzles, Thermowells, Valves, and Pump Components.
A variety of nozzle configurations are used in refining and petrochemical processing to handle the injection and introduction of steam, air, hydrocarbon feed, coke, and various other chemicals. Nozzles must be designed to retain their dimensional and structural integrity from turnaround to turnaround. Abnormal erosion or fracture can seriously jeopardize process safety and the economics of the operations. Typical examples of wear resistant nozzles manufactured by Kennametal Stellite include: Riser Line Feed Nozzles; Regenerator air nozzles; Steam stripping nozzles; Orifice chamber nozzles;, Fluid coker nozzles.
Of all metallic components in the refining and chemical processing industry, thermowells are exposed to the most severe of environments and, as such, require special attention. Flame spray or welded coatings of Stellite 6, 12, or 1 are often employed as a first line of defense in extending service life. Further enhancements to service life are achieved by utilizing Stellite 6 or 12 cast components. Maximum life is realized from a combination of Stellite castings overlaid with Stelcar coatings such as T-800 (Tribaloy). JK125 (chromium carbice) or JK117 (tungsten carbide). Thermowells flame sprayed with the Mo containing Stellite 700 series alloys are candidate materials for combating napthanic acid corrosion in vacuum distillation and hydrochloric acid corrosion in catalytic reformers.