Titanium – Metal used in a series of applications in state-of-the-art technology have the main characteristics of corrosion resistance combined with its mechanical resistance. Its low densities are determinant in the choice of its alloys that are quite mechanically resistant at ambient temperatures besides having good ductility and good machinability and forgeability. Among its various applications are cited as turbine components, aerospace pressure vessels, submarine casings, implants and prostheses, etc..
NIOBIUM – Niobium and its alloys have been used in many industrial applications including alloying elements, superconductivity applications, rivets for aircraft and mainly in chemical processes because they have excellent corrosion resistance properties in environments with hydrochloric, nitric, sulfuric, chromic, , organic, salts and liquid metals.
Tantalum – One of the evaluated metals that has greater resistance to corrosion. While its resistance to acid attack is comparable to that of glass and platinum, it is much less susceptible to rupture, has a greater heat transfer and that glass is much less expensive than platinum. Used filaments, condensers, concentrated acids, implants, surgical instruments etc..