I-Nodulizer iwumlutha ongakhuthaza ukwakheka kwe-spheroidal graphite kusuka kuzingcezu zegraphite ezinqubweni zokukhiqiza.Ingathuthukisa ama-graphite angama-spheroidal futhi ikhulise inani lama-spheroidal graphite ukuze izakhiwo zawo zemishini zithuthukiswe.Ngenxa yalokho, i-ductility nokuqina