MULTIPHASE MP35N Superalloy: Provides the ultimate combination of strength and corrosion resistance. The recommended temperature range is from cryogenic through 750 F. MULTIPHASE MP159 Superalloy: Formulated to meet the demands of turbine engine manufacturers, offers an operating temperature capability to 1100 F, while maintaining the high strength of MP35N alloy and excellent corrosion resistance. AEREX 350 Superalloy: Greater toughness than the MULTIPHASE alloys at cryogenic temperatures. Pushes the maximum operating temperature envelope to 1350 F. No other fastener alloy can match the combination ...