Wayar ƙarfe ta 4J33 wani abu ne mai ƙarancin faɗaɗawa na Fe-Ni-Co wanda aka ƙera musamman don amfani da hatimin gilashi zuwa ƙarfe. Tare da kusan kashi 33% na nickel da ƙaramin adadin cobalt, wannan ƙarfe yana ba da ma'aunin faɗaɗa zafi wanda ya dace da gilashi mai tauri da yumbu. Ana amfani da shi sosai wajen kera bututun injin, na'urori masu auna infrared, na'urorin lantarki, da sauran na'urori masu inganci.
Nickel (Ni): ~33%
Cobalt (Co): ~3–5%
Baƙin ƙarfe (Fe): Daidaito
Wasu: Mn, Si, C (adadin da aka gano)
Faɗaɗawar Zafi (30–300°C):~5.3 × 10⁻⁶ /°C
Yawan yawa:~8.2 g/cm³
Juriyar Lantarki:~0.48 μΩ·m
Ƙarfin Taurin Kai:≥ 450 MPa
Halayen Magnetic:Mai laushi na maganadisu, mai kyau da kuma kwanciyar hankali
Diamita: 0.02 mm zuwa 3.0 mm
Surface: Mai haske, babu sinadarin oxide
Fom ɗin isarwa: Coils, spools, ko tsawon yankewa
Yanayi: An rufe shi ko kuma an sanya shi a cikin sanyi
Girman da aka keɓance da marufi suna samuwa
Daidai ne mai kyau da gilashi mai tauri don rufewa mai matsewa
Faɗaɗawar zafi mai ƙarfi don daidaiton abubuwan haɗin
Kyakkyawan juriyar lalata da walda
Tsaftace saman da aka gama, mai dacewa da injin tsabtace iska
Ingantaccen aiki a cikin aikace-aikacen sararin samaniya da lantarki
Hatimin hermetic-to-metal-gilashi-zuwa-ƙarfe
Bututun injin tsotsa da na'urori masu auna infrared
Gidajen jigilar kaya da marufi na lantarki
na'urar gani mai rufewa
Masu haɗin kai da jagorori masu matakin sararin samaniya
Na'urar filastik ta yau da kullun, wacce aka rufe da injin ko kuma marufi na musamman
Isarwa ta hanyar iska, teku, ko gaggawa
Lokacin isarwa: Kwanaki 7-15 na aiki dangane da girman oda
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