CarTech CTX-1 alloy is a precipitation hardenable, high temperature alloy exhibiting a low coefficient of thermal expansion and high strength at temperatures up to about 1200°F (649°C). This alloy also displays high hot hardness and good thermal fatigue resistance.

CarTech CTX-1 alloy develops stress rupture ductility through retained hot-cold work, resulting in directionality of properties.

Although CarTech CTX-1 alloy continues to provide the highest strength levels of the controlled expansion high temperature alloys, later generation alloys, such as CarTech CTX-3 alloy, should be considered for applications involving elevated temperature transverse stress conditions.

CarTech Thermo-Span® alloy should be considered if moderate oxidation resistance is desired.

Applications:
CarTech CTX-1 alloy has been specified for applications such as casings, seals, and other gas turbine engine components; in hot work die applications, such as extrusion dies, punches and mandrels; and in high-pressure hydrogen environments.

Other applications have included:
Ordnance hardware
Steam turbine blades
Gauge blocks
Springs
Rocket thrust chambers
Die casting dies