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Kanthal (alloy) (11012 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


AlGaアルニコ磁石アルミニウムアルミニウム合金アルミニウム青銅Aluminium-lithium alloyArsenical bronzeArsenical copperBell metalベリリウムベリリウム銅ビロンBirmabrightBismanolビスマス黄銅青銅Calamine brass鋳鉄Chinese silverクロムChromium hydrideコバルトホワイトゴールドコンスタンタン水素化銅Copper–tungstenCorinthian bronzeCrown goldクニフェ白銅Cymbal alloysデバルダ合金ジュラルミンDutch metalエレクトロン貨エリンバーFernicoフェロアロイフェロセリウムフェロクロムフェロマンガンフェロモリブデンFerrosiliconFerrotitaniumFerrouraniumField's metalFlorentine bronzeGalfenolガリンスタンガリウムGilding metalガラスGlucydurGuanín (bronze)砲金HepatizonHiduminiumHydronaliumインジウムインバーIron–hydrogen alloyItalmaMagnaliumマグネシウムマンガニンMegalliumMelchior (alloy)マーキュリーMolybdochalkosMuntz metalニクロムニッケル洋白ノルディック・ゴールドOrmoluリン青銅銑鉄Pinchbeck (alloy)合成樹脂PlexiglasプルトニウムカリウムRhoditeロジウムRose's metalサマリウムスカンジウム赤銅 (合金)ナトリウムスペキュラム合金ステンレス鋼ステライト鉄骨構造スズチタントムバックTumbagaウランVitalliumウッドメタルY alloy亜鉛ジルコニウムコバールStaballoyBulat steelCrucible steelクロムモリブデン鋼ダマスカス鋼高マンガン鋼高速度鋼Mushet steelマルエージング鋼高張力鋼Reynolds 531ケイ素鋼ばね鋼AL-6XNCelestriumAlloy 20Marine grade stainlessMartensitic stainless steelSanicro 28Surgical stainless steelZeron 100Silver steel工具鋼耐候性鋼Wootz steelはんだTerne活字合金Elektron (alloy)アマルガムマグノックスAlumelBrightrayChromelHaynes InternationalインコネルモネルNicrosilNisilNickel titaniumMu-metalパーマロイSupermalloyNickel hydrideプルトニウムガリウム合金ナトリウムカリウム合金ミッシュメタルリチウムTerfenol-DPseudo palladiumScandium hydrideサマリウムコバルト磁石Argentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterling四分一 (合金)スターリングシルバーTibetan silverTitanium Beta Cチタン合金Titanium hydrideGum metalTitanium gold窒化チタンバビットメタルBritannia metalピューターQueen's metalWhite metal水素化ウラン(III)ZamakZirconium hydride水素ヘリウムホウ素窒素酸素フッ素吸盤メタン中二階原子

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