Carbon fiber fiber ne na musamman tare da abun cikin carbon sama da 95% wanda ya dogara da PAN wanda aka samar ta hanyar pre-oxidation, carbonization, da graphitization. Ƙarfinsa bai wuce 1/4 na ƙarfe ba yayin da ƙarfinsa ya ninka sau 20 na karfe. Ba wai kawai yana da halaye na kayan carbon ba amma har ma yana da aikin aiki, da sassaucin zaruruwan yadi.