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Kanthal (alloy) (11016 views - Material Database)

Kanthal is the trademark for a family of iron-chromium-aluminium (FeCrAl) alloys used in a wide range of resistance and high-temperature applications. Kanthal FeCrAl alloys consist of mainly iron, chromium (20–30%) and aluminium (4–7.5 %). The first Kanthal FeCrAl alloy was developed by Hans von Kantzow in Hallstahammar, Sweden. The alloys are known for their ability to withstand high temperatures and having intermediate electric resistance. As such, it is frequently used in heating elements. The trademark Kanthal is owned by Sandvik Intellectual Property AB.
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Kanthal (alloy)

Kanthal (alloy)

Kanthal is the trademark for a family of iron-chromium-aluminium (FeCrAl) alloys used in a wide range of resistance and high-temperature applications. Kanthal FeCrAl alloys consist of mainly iron, chromium (20–30%) and aluminium (4–7.5 %). The first Kanthal FeCrAl alloy was developed by Hans von Kantzow in Hallstahammar, Sweden. The alloys are known for their ability to withstand high temperatures and having intermediate electric resistance. As such, it is frequently used in heating elements. The trademark Kanthal is owned by Sandvik Intellectual Property AB.

Characteristics

For heating, resistance wire must be stable in air when hot. Kanthal FeCrAl alloy forms a protective layer of aluminum oxide (alumina).[1] Aluminium oxide is an electrical insulator but has a relatively high thermal conductivity; special techniques may be required to make good electrical connections.

Ordinary Kanthal FeCrAl alloy has a melting point of 1,500 °C (2,730 °F). Special grades can be used as high as 1,425 °C (2,597 °F).[2]

Uses

Kanthal is used in heating elements due to its flexibility, durability and tensile strength. Its uses are widespread, with it being used in toasters, home and industrial heaters and diffusion heaters (used in the making of crystalline silicon).[3][4]

Recently, Kanthal has been used in electronic cigarettes as a heating coil. Unlike alternative types of metal such as Nichrome, Kanthal is durable enough to withstand the temperatures needed, but flexible and cheap enough to be practical.[5]

Kanthal comes in standardised gauging, with higher numbers being thinner and lower being thicker.

See also


AlGaAlnicoAlüminyumAlüminyum alaşımlarıAluminium bronzeAluminium-lithium alloyArsenical bronzeArsenical copperBell metalBerilyumBeryllium copperBillon (alloy)BirmabrightBismanolBizmutPirinç (alaşım)BronzCalamine brassDökme demirChinese silverKromChromium hydrideKobaltColored goldConstantanBakırCopper hydrideCopper–tungstenCorinthian bronzeCrown goldCunifeCupronickelCymbal alloysDevarda's alloyDuraluminDutch metalElektrumElinvarFernicoFerroalloyFerroceriumFerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouraniumField's metalFlorentine bronzeGalfenolGalinstanGalyumGilding metalCamGlucydurAltınGuanín (bronze)GunmetalHepatizonHiduminiumHydronaliumİndiyumInvarDemirIron–hydrogen alloyItalmaKurşunMagnaliumMagnezyumManganinMegalliumMelchior (alloy)MercuryMolybdochalkosMuntz metalNichromeNikelAlman gümüşüKuzey altınıOrmoluPhosphor bronzePig ironPinchbeck (alloy)PlastikPlexiglasPlütonyumPotasyumRhoditeRodyumRose's metalSamaryumSkandiyumShakudōGümüşSodyumSpeculum metalPaslanmaz çelikÇelikStelliteStructural steelKalayTitanyumTombacTumbagaUranyumVitalliumWood's metalY alloyÇinkoZirkonyumKovarStaballoyBulat steelCrucible steel41xx steelŞam çeliğiMangalloyHigh-speed steelMushet steelMaraging steelHigh-strength low-alloy steelReynolds 531Electrical steelSpring steelAL-6XNCelestriumAlloy 20Marine grade stainlessMartensitic stainless steelSanicro 28Surgical stainless steelZeron 100Silver steelTool steelWeathering steelWootz steelSolderTerneType metalElektron (metal)AmalgamMagnox (alloy)AlumelBrightrayChromelHaynes InternationalİnkomelMonelNicrosilNisilŞekil Hafızalı AlaşımlarMu-metalPermalloySupermalloyNickel hydridePlutonium–gallium alloySodium-potassium alloyMischmetalLityumTerfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichiSom gümüşTibetan silverTitanium Beta CTitanium alloyTitanium hydrideGum metalTitanium goldTitanyum nitritBabbitt (alloy)Britannia metalPewterQueen's metalWhite metalUranium hydrideZamakZirconium hydrideHidrojenHelyumBorAzotOksijenFlorSuction cupMetanMezzanineAtom

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