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Author: Admin | 2025-04-28
For the absence of usable copper and health issues from arsenic exposure. It was from a sample of this kupfernickel that Baron Axel Fredrik Cronstedt first isolated elemental nickel in 1751, naming the new metal for the sprite. The mineral was given its modern names, nickeline and niccolite, by the mid-19th century.Aside from cupronickel and copper–nickel, several other terms have been used to describe the material: the tradenames Alpaka or Alpacca, Argentan Minargent, the registered French term cuivre blanc, Chinese silver, and the romanized Cantonese term Paktong, 白銅 (the French and Cantonese terms both meaning "white copper").Cupronickel alloys containing zinc are referred to as nickel silver, also sometimes hotel silver, German silver, plata alemana (Spanish for "German silver").[2]Cupronickel alloys are used for marine applications[3] due to their resistance to seawater corrosion, good fabricability, and their effectiveness in lowering macrofouling levels. Alloys ranging in composition from 90% Cu–10% Ni to 70% Cu–30% Ni are commonly specified in heat exchanger or condenser tubes in a wide variety of marine applications.[4]Important marine applications for cupronickel include:Shipbuilding and repair: hulls of boats and ships, seawater cooling, bilge and ballast, sanitary, fire fighting, inert gas, hydraulic and pneumatic chiller systems.[5][6]Desalination plants: brine heaters, heat rejection and recovery, and in evaporator tubing.[7]Offshore oil and gas platforms and processing and FPSO vessels: systems and splash zone sheathings.[8]Power generation: steam turbine condensers, oil coolers, auxiliary cooling systems and high pressure pre-heaters at nuclear and fossil fuel power plants.[9]Seawater system components: condenser and heat exchanger tubes, tube sheets, piping,
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