An ƙera bulo na Magnesium-carbon cikin nasara a matsayin ɗaya daga cikin abubuwan da ke hana magnesium-carbon refractories a tsakiyar shekarun 1960,; An yi amfani da tubalin Magnesium-carbon sosai wajen yin ƙarfe don haka ya zama al'adar amfani da graphite. Aluminum-carbon tubali kamar aluminum-carbon refractory abu ne yafi amfani ga ci gaba da simintin gyaran kafa, a m cover for lebur karfe billet kai matsayi bututu, karkashin ruwa bututun ƙarfe da man rijiyar fashewa ganga, da dai sauransu Crucible Ya sanya daga graphite kafa da wuta-resistant cauldrons da kuma Abubuwan da ke da alaƙa, irin su crucible na kowa, kwalban wuyansa mai lankwasa, toshe da bututun ƙarfe, suna da tsayayyar wuta mai ƙarfi, ƙarancin haɓakar thermal, tsarin narkewar ƙarfe, ta hanyar shigowar ƙarfe da yashwa kuma yana da karko, kwanciyar hankali mai kyau na thermal da ingantaccen yanayin zafi a babban zafin jiki. , Don haka graphite da samfuran da ke da alaƙa suna amfani da su sosai a cikin aikin narkewar ƙarfe kai tsaye.