Karfe bututusuna da samfura daban-daban da ƙayyadaddun bayanai bisa ga yanayin aikace-aikacen daban-daban da buƙatun fasaha. Samfuran gama gari sun haɗa amma ba'a iyakance ga masu zuwa ba:
Q235B: Carbon tsarin tsarin karfe na yau da kullun, ana amfani da shi sosai a cikin injiniyan gini gabaɗaya da masana'antu.
20 #: Low gami high ƙarfi tsarin karfe, dace da aikace-aikace bukatar mafi girma ƙarfi.
L245 / L415: Ya dace da jigilar ruwa a ƙarƙashin yanayin matsa lamba, kamar bututun mai da iskar gas.
Q345B: Low gami high ƙarfi tsarin karfe, tare da mai kyau weldability da sanyi kafa yi, fiye amfani a gadoji, hasumiyai da sauran filayen.
X52 / X60 / X70 / X80: Babban bututun bututun ƙarfe, wanda aka ƙera don jigilar mai da iskar gas a ƙarƙashin matsanancin yanayi, yana iya jure matsanancin matsin lamba da yanayin zafi.
SSAW (Cikin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarfafa don Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙa ) )