CHASE 75 W-25 Re is a tungsten-rhenium ultra-high temperature alloy recommended for temperatures up to 5000 F. It is used for power and electron tube components, heat exchangers, thermocouples and thermocouple protection tubes, nuclear reactor and power generation components and in general any high temperature application requiring high strength and ductility. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on forming, heat treating, machining, and joining. Filing Code: W-10. Producer or source: Chase Brass & Copper Company Inc..