Represents a range of nickel alloys, resistant to corrosion, sometimes at high temperatures and under severe mechanical stress, freely qualified as superalloys by the metallurgical industry, containing mostly nickel, but also sometimes lower fractions of chromium, cobalt, copper, iron, manganese, aluminum, magnesium, molybdenum, silicon, zirconium and titanium, and sometimes more than traces of carbon, boron, phosphorus and sulfur.

Its fields of application are the chemical and maritime industries, plumbing fittings, industrial heating, musical instruments, etc.

An iron-nickel alloy is a metal alloy consisting mainly of iron and nickel. Iron and nickel alloys are often also referred to as materials that are in fact intermetallic compounds of iron and nickel, or assemblies of intermetallic compounds. 

Many iron and nickel alloys are produced by the metallurgical industry and marketed owing to their mechanical, thermal or magnetic properties. The chemical industry also uses certain iron and nickel alloys for their catalytic properties.

As its name suggests, CUPRONICKEL is a copper-nickel alloy with the chemical symbol CuNi.

So-called "binary" cupronickels can be distinguished from cupronickels with other ferrous elements. CuNi10Fe1Mn and CuNi30Mn1Fe are therefore among the most common grades - the numbers 10 and 30 refer here to the percentage of nickel.

Les applications des cupro-nickels de par leur résistance à la corrosion et à l’érosion marine, sont très utilisés dans l’industrie maritime, d’autant qu’ils présentent naturellement des propriétés anti-Fuling. Sur un bateau, ce métal empêche donc algues et coquillages d’adhérer à la coque. Ce n’est pas, loin de là, la seule application du cupro-nickel. Il sert également à la fabrication de monnaies : on le retrouve notamment sur nos pièces de 1€ et 2€. Dans l’industrie automobile par exemple pour les batteries des véhicules hybrides. Cet alliage est encore utilisé dans l’usinage de conduits, de tuyaux, d’échangeurs de chaleur et de condenseurs. Il conserve en effet ses caractéristiques à des températures allant jusqu’à 400°, d’autant plus s’il contient une forte proportion de cuivre.