FWM 1537 is a low carbon wrought Cobalt-Chromium-Molybdenum alloy ideal for applications in medical and aerospace industries. It has high strength, ductility, wear resistance, corrosion resistance and biocompatibility.
This alloy is normally solution treated at temperatures around 2000°F for one hour, followed by a rapid quench with water or compressed air to ensure optimum properties. Annealing or aging at lower temperatures may cause the precipitation of carbides or phase transformation, which can significantly reduce ductility.
FWM 1537 can be provided in coil form (typical size range from 0.004" to 0.45") or as straight bars (typical size range from 0.06" to 0.4"). Coiled material can be annealed or cold worked, with the mechanical properties depending on the amount of cold work. The figure below illustrates the influence of cold work on mechanical properties.
FWM 1537 develops a highly polished appearance when drawn to fine diameters. Surface roughness can be decreased by using single crystal natural diamond dies. Large diameter wires (>0.05") will be drawn by carbide dies and thus have a more textured surface. Bar products are normally centerless ground and polished, which provides a lustrous surface finish and maintains a tight tolerance for precision machining applications.
FWM 1537 is currently used in the medical industry to manufacture implants such as hip and knee replacements, spinal rods and screws. Due to its unique properties, FWM 1537 has great potential in any industrial application that requires high strength, wear and corrosion resistance, for instance in aerospace bushings and bearings.