Yawanci sun haɗa da ƙarfe mai maganadisu (duba kayan maganadisu), ƙarfe mai roba, ƙarfe mai faɗaɗawa, ƙarfe mai zafi, ƙarfe mai amfani da wutar lantarki, ƙarfe mai adana hydrogen (duba kayan adana hydrogen), ƙarfe mai siffar ƙwaƙwalwa, ƙarfe mai aiki da magnetostrictive (duba kayan magnetostrictive), da sauransu.
Bugu da ƙari, wasu sabbin ƙarfe galibi ana haɗa su cikin rukunin ƙarfe masu daidaito a aikace-aikace masu amfani, kamar ƙarfe masu rage girgiza da damping, ƙarfe masu ɓoyewa (duba kayan ɓoyewa), ƙarfe masu rikodin maganadisu, ƙarfe masu ɗaukar nauyi, ƙarfe masu amorphous na microcrystalline, da sauransu.
An raba ƙarfe masu daidaito zuwa rukuni bakwai bisa ga halaye daban-daban na zahiri, wato: ƙarfe masu laushi na maganadisu, ƙarfe masu nakasa na dindindin na maganadisu, ƙarfe masu roba, ƙarfe masu faɗaɗawa, ƙarfe masu zafi, ƙarfe masu juriya, da ƙarfe masu kusurwa na thermoelectric.
Yawancin ƙarfe masu daidaito sun dogara ne akan ƙarfe masu ƙarfe, kaɗan ne kawai suka dogara ne akan ƙarfe marasa ƙarfe.
Garin maganadisu sun haɗa da garin maganadisu masu laushi da garin maganadisu masu tauri (wanda kuma aka sani da garin maganadisu na dindindin). Na farko yana da ƙarancin ƙarfin tilastawa (m), yayin da na biyun yana da babban ƙarfin tilastawa (>104A/m). Ana amfani da su galibi a masana'antu kamar ƙarfe mai tsarki, ƙarfe na lantarki, garin ƙarfe-nickel, garin ƙarfe-aluminum, garin alnico, garin cobalt mai rare, da sauransu.
Bimetal mai zafi wani abu ne mai hadewa wanda ya kunshi layuka biyu ko fiye na karafa ko gami masu ma'aunin fadadawa daban-daban wadanda aka hade su sosai a dukkan saman da aka taba. Ana amfani da gamin fadada mai girma a matsayin mai aiki, ana amfani da gamin fadada mai karamin girma a matsayin mai aiki, kuma ana iya kara wani layi a tsakiya. Yayin da yanayin zafi ke canzawa, gamin zafi na iya lankwasawa, kuma ana amfani da shi wajen kera na'urorin watsa zafi, na'urorin katse da'ira, na'urorin fara amfani da kayan gida, da kuma bawuloli masu sarrafa ruwa da iskar gas ga masana'antar sinadarai da masana'antar wutar lantarki.
Gilashin lantarki sun haɗa da ƙarfe masu juriya daidai, ƙarfe masu amfani da wutar lantarki, kayan thermocouple da kayan hulɗar lantarki, da sauransu, kuma ana amfani da su sosai a fannin na'urorin lantarki, kayan aiki da mita.
Magnetostrictive gami wani nau'in kayan ƙarfe ne mai tasirin magnetostrictive. Ana amfani da su galibi a hade-haden ƙarfe da kuma nickel, waɗanda ake amfani da su don ƙera na'urorin canza sauti na ultrasonic da na ƙarƙashin ruwa, oscillators, matattara da firikwensin.
1. Lokacin zabar hanyar narkar da ƙarfe mai daidaito, ya zama dole a yi la'akari da inganci, farashin tarin tanderu, da sauransu, a mafi yawan lokuta. Kamar buƙatar sarrafa sinadarai masu ƙarancin carbon, cire gas, inganta tsarki, da sauransu. Hanya ce mai kyau don amfani da tanderun lantarki da tacewa a wajen tanderun. A ƙarƙashin ƙa'idar buƙatu masu inganci, tanderun injin shigar da injin har yanzu hanya ce mai kyau. Duk da haka, ya kamata a yi amfani da ƙarfin da ya fi girma gwargwadon iko.
2. Ya kamata a mai da hankali kan fasahar zuba ruwa don hana gurɓatar ƙarfe mai narkewa yayin zubawa, kuma zuba ruwa akai-akai a kwance yana da mahimmanci na musamman ga daidaiton ƙarfe