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Kanthal (alloy) (11006 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


AlGaAlnico알루미늄알루미늄 합금알루미늄 청동Aluminium-lithium alloyArsenical bronzeArsenical copperBell metal베릴륨베릴륨구리Billon (alloy)BirmabrightBismanol비스무트황동청동Calamine brass주철Chinese silver크로뮴Chromium hydride코발트Colored goldConstantan구리Copper hydrideCopper–tungstenCorinthian bronzeCrown goldCunife백동Cymbal alloysDevarda's alloy두랄루민Dutch metal호박금ElinvarFernicoFerroalloy페로세륨FerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouraniumField's metalFlorentine bronzeGalfenolGalinstan갈륨Gilding metal유리GlucydurGuanín (bronze)GunmetalHepatizonHiduminiumHydronalium인듐InvarIron–hydrogen alloyItalmaMagnalium마그네슘ManganinMegalliumMelchior (alloy)머큐리MolybdochalkosMuntz metal니크롬니켈양은노르딕 골드OrmoluPhosphor bronze선철Pinchbeck (alloy)플라스틱Plexiglas플루토늄칼륨Rhodite로듐Rose's metal사마륨스칸듐Shakudō나트륨Speculum metal스테인리스강강철StelliteStructural steel주석 (원소)타이타늄TombacTumbaga우라늄Vitallium우드 합금Y alloy아연지르코늄KovarStaballoyBulat steelCrucible steel41xx steel다마스쿠스 강MangalloyHigh-speed steelMushet steelMaraging steelHigh-strength low-alloy steelReynolds 531Electrical steelSpring steelAL-6XNCelestriumAlloy 20Marine grade stainlessMartensitic stainless steelSanicro 28Surgical stainless steelZeron 100Silver steelTool steelWeathering steelWootz steel땜납TerneType metalElektron (alloy)아말감Magnox (alloy)AlumelBrightrayChromelHaynes InternationalInconelMonelNicrosilNisilNickel titaniumMu-metal퍼멀로이SupermalloyNickel hydridePlutonium–gallium alloy나크Mischmetal리튬Terfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichi스털링 실버Tibetan silverTitanium Beta CTitanium alloyTitanium hydrideGum metalTitanium goldTitanium nitride배빗메탈Britannia metal퓨터Queen's metalWhite metalUranium hydrideZamakZirconium hydride수소헬륨붕소질소산소플루오린Suction cup메테인Mezzanine원자

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