Maraging – High mechanical strength steels that are hardened by the precipitation of intermetallic compounds in a low carbon martensitic matrix. Used in missile casing, special springs, rocket parts, pressure vessels etc..
Invar -Also known as Invar 36, is a low expansion alloy, consisting of 36% Nickel and the remainder Iron. It features extremely low expansion and is particularly useful in applications where minimal thermal expansion and high dimensional stability is required, such as in precision instruments such as electronics, optics, electronics and other types of scientific instruments.
Stellite - A particularly wear-resistant Co-Cr alloy. It can also be composed of W, C and other elements, depending on the applications. It has a high resistance to heat, wear and corrosion. They are applied in valve linings, turbine valve seat of aircraft and in wear tools.
Beryllium Copper - Precipitation hardened, it is considered as the alloy that achieves the highest hardness levels of the copper alloys. They are most often used for applications requiring a combination of high electrical conductivity and mechanical strength and for applications requiring wear resistance. They are used for the manufacture of springs, anti-sparking needles and equipment for oil prospecting
Cobalt-Beryllium Copper - It is usually supplied aged. It has less mechanical resistance than the Copper-Beryllium alloy, but has excellent formability and can be easily stamped. Used in springs, welding equipment, etc..