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Melchior (alloy) (9201 views - Material Database)

In metallurgy, melchior is an alloy of copper, mainly with nickel (5–30%). Its name originates from Italian: melchior, which in turn is distorted French: maillechort, honoring the French inventors of the alloy, Maillot and Chorier. The term melchior sometimes refers not only to the copper-nickel alloys, but also ternary alloys of copper with nickel and zinc ("nickel silver") and even a silvered brass. Melchior is easily deformable by application of pressure, both in the hot and cold state. After annealing, it has a tensile strength of about 40 kg/mm2. The most valuable property of melchior is its high resistance to corrosion in air, freshwater and seawater. Increasing content of nickel iron or manganese improves corrosion and cavitation resistance, especially in sea water and atmospheric water vapor. The alloy of 30% Ni, 0.8% Fe, 1% Mn and 68.2% copper is used in maritime shipping, in particular for the manufacture of condenser tubes. Thanks to the nickel, melchior, unlike brass and bronze, has not a yellow but a silver color. Together with high corrosion resistance, this silvery color is preferred for the manufacture of household utensils.
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Melchior (alloy)

Melchior (alloy)

Melchior (alloy)

In metallurgy, melchior is an alloy of copper, mainly with nickel (5–30%). Its name originates from Italian: melchior, which in turn is distorted French: maillechort, honoring the French inventors of the alloy, Maillot and Chorier. The term melchior sometimes refers not only to the copper-nickel alloys, but also ternary alloys of copper with nickel and zinc ("nickel silver") and even a silvered brass. Melchior is easily deformable by application of pressure, both in the hot and cold state. After annealing, it has a tensile strength of about 40 kg/mm2. The most valuable property of melchior is its high resistance to corrosion in air, freshwater and seawater. Increasing content of nickel iron or manganese improves corrosion and cavitation resistance, especially in sea water and atmospheric water vapor. The alloy of 30% Ni, 0.8% Fe, 1% Mn and 68.2% copper is used in maritime shipping, in particular for the manufacture of condenser tubes. Thanks to the nickel, melchior, unlike brass and bronze, has not a yellow but a silver color. Together with high corrosion resistance, this silvery color is preferred for the manufacture of household utensils.[1]

See also


AlnicoAlluminioLeghe di alluminioCupralluminiAl-LiBronzo arsenicaleRame arsenicaleBell metalBerillioBeryllium copperBiglioneBirmabrightBismanolBismutoOttone (lega)BronzoCalamine brassChinese silverCromoChromium hydrideCobaltoCostantanaRameCopper hydrideCopper–tungstenCorinthian bronzeCunifeCupronichelCymbal alloysLega di DevardaDuralluminioDutch metalElettroFlorentine bronzeGallio (elemento chimico)Gilding metalVetroGlucydurOroGuanín (bronze)GunmetalHepatizonHiduminiumHydronaliumIndioFerroItalmaPiomboMagnaliumMagnesioManganinaMegalliumMercuryMuntz metalNichromeNichelOrmoluPhosphor bronzePrincisbeccoMaterie plastichePlexiglasPlutonioPotassioRodioRose's metalSamarioScandioArgentoSodioSpeculum metalAcciaio inossidabileAcciaioStelliteAcciaio strutturaleStagno (elemento chimico)TitanioTombacUranioVitalliumWood's metalY alloyZincoZirconioAlpaccaMolybdochalkosOro nordicoShakudōTumbagaAlGaGalfenolGalinstanoColored goldRhoditeCrown goldElinvarField's metalFernicoFerrolegaFerroceriumFerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitanioFerrouraniumInvarGhisaIron–hydrogen alloyPig ironKanthal (alloy)KovarStaballoyBulat steelCrucible steel41xx steelAcciaio DamascoMangalloyAcciaio super rapidoMushet steelAcciaio MaragingHigh-strength low-alloy steelReynolds 531Electrical steelAcciaio armonicoAL-6XNCelestriumAlloy 20AISI 316Martensitic stainless steelSanicro 28Acciaio chirurgicoZeron 100Silver steelTool steelAcciaio CortenWootz steelSolderTerneLega tipograficaElektronAmalgamaMagnoxAlumelBrightrayChromelHaynes InternationalInconelMonelNicrosilNisilNitinolMu-metalPermalloySupermalloyNickel hydridePlutonium–gallium alloyNaKMischmetalLitioTerfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichiArgento sterlingArgento tibetanoTitanium Beta CTitanium alloyIdruro di titanioGum metalTitanium goldNitruro di titanioBabbitt (alloy)Britannia metalPeltroQueen's metalMetallo biancoIdruro di uranioZamakZirconium hydrideIdrogenoElioBoroAzotoOssigenoFluoroMetanoMezzanino (architettura)Atomo

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