HRSA material (Heat resistant super alloys)

Cases, mounted on the exterior of the aircraft engines, protect and support the parts required for combustion. Accordingly, they need to be made from materials that can stand rapid temperature change and that can reduce weight of an engine. Titanium alloys and stainless alloys are often used for parts that go into compressors installed on the cold section of the engine, while Inconel and nickel-base superalloy are often used for combustion chamber and turbine parts in the hot section of the engine.