Technical Information for L605 per GE B50A460 S3
L605 per GE B50A460 S3 is a cobalt-base superalloy with good formability, high strength to 1500°F (816°C) and oxidation resistance to 2000°F (1093°C). GE B50A460 S3 calls for L605 in Sheet form.
L-605 is normally solution-treated in the range of 2150°F-2250°F (1175°-1230°C) and rapid aircooled or water-quenched to attain optimum properties.
Because L-605 has excellent high temperature strength, good oxidation resistance, and excellent sulfidation resistance this alloy also offers good resistance to wear and galling. The high temperature strength results from solid-solution strengthening by tungsten with second phase strengthening by precipitated carbides.
The alloys sulfidation resistance and resistance to wear and galling allows it to be used in the hot sections of aircrafts and in land-based gas turbines in their combustor liners as well as other applications requiring moderate strength and oxidation resistance at high temperatures. The alloy can also be used in industrial furnace applications such as muffles/liners in high temperature kilns
Despite having many applications in military and commercial gas turbine engine components, Alloy L-605 it has largely been replaced by Alloy 188 or Alloy 230.
Applications of Cobalt L-605
Aircraft Gas Turbine Engines
Combustion Liners
Industrial Furnace Applications
Marine Turbines
PLATE
L-605 Plate Thickness ranges from 0.1875″ to 2.50″ Thick.
SHEET
L-605 Sheet Thicknesses range from 0.002″ to .156″ Thick.