Eekanna simenti, ti a mọ nigbagbogbo bi eekanna irin, jẹ iru eekanna kan, lilo iṣelọpọ irin erogba,
ohun elo jẹ irin 45 tabi irin 60, lẹhin iyaworan waya, annealing, ṣiṣe eekanna, quenching ati awọn miiran
lakọkọ, ki awọn sojurigindin jẹ jo lile.Iṣẹ rẹ ni lati kan àlàfo diẹ ninu awọn eekanna lile miiran