(1) high yawan amfanin ƙasa batu, high taurin, m sanyi hardening sakamako, sauki crack da sauran lahani.

(2) rashin ingancin thermal conductivity fiye da talakawa carbon karfe, sakamakon da ake bukata nakasawa karfi, naushi karfi, jawo karfi.

(3) a cikin zane, nakasar filastik yana da tsanani, tebur yana da sauƙi don kullun ko fadi.

(4) sabon abu cewa zana mold yana da sauƙi a bi da nodules,

(5) lokacin zana zurfi, yana da wuya a kai ga siffar da ake tsammani.

Samar da maudu'in da ke sama, shi ne ta aikin bakin karfe da kansa, galibi ta abubuwa biyar masu zuwa:

Daya shi ne yi na raw kayan;Na biyu, da mold tsarin da stamping gudun; Uku ne kayan na mold; Hudu ne stamping lubrication ruwa; Na biyar, da tsari na hanya na tsari.

Ƙarin bayanin macro na bakin karfe mai wadata don Allah ziyarci: https://www.hermessteel.net