Niobium C-103 is a niobium based alloy containing approximately 10% hafnium and 1% titanium. Because of its excellent formability, costs, reliability and its ability to withstand strong vibration and high temperature, it can be widely used in the field of space manufacturing. Nb C103 alloy has been long-time applied to aerospace for critical high-temperature jet engine such as rocket nozzles, exhaust nozzles and afterburner gasket