tembaganikel

Tembaganikel is a term used in Indonesian-language contexts to refer to a copper-nickel alloy, a class of materials formed by combining copper with nickel as the primary alloying element. In English-language metallurgy, these materials are commonly called cupronickel or copper-nickel alloys. The exact composition varies, but typical variants contain a majority of copper with nickel ranging from roughly 15% to 40%, and may include small additions of iron, manganese, or zinc to adjust strength, hardness, and workability.

The alloy is known for its balanced properties, including good corrosion resistance, especially in seawater, and attractive, silvery coloration. It offers better strength and hardness than pure copper while maintaining ductility and relatively easy machinability. Depending on the precise composition, copper-nickel alloys are usually non-magnetic or only weakly magnetic, which can be advantageous in electrical and marine applications. They also exhibit good thermal and electrical conductivity compared with many other corrosion-resistant metals.

Common uses include coinage in various countries, marine hardware and piping components, heat exchangers, and decorative or architectural items. Cupronickel’s resistance to biofouling and seawater corrosion makes it a preferred material for hull fittings, offshore equipment, and submerged fasteners in harsh marine environments.

Origin and usage notes: tembaganikel is a practical shorthand in Indonesian technical writing for copper-nickel alloys. While the term is not universally standardized in English-language sources, cupronickel and related copper-nickel alloys encompass the same material family and applications.