IningiI-I-Standard Precision Mold Basekukhona izinsimbi medium and high carbon alloy. Ngemva kokucisha, i-cockhysite ebanda kancane ayiguquki ibe i-martensite, iqhubeke nokucutshungulwa ngendlela ye-austenite esele, ethinta ukusebenza kokucubungula. Ingcindezi ekucimeni insimbi kuwumphumela wokucindezelwa kwezicubu ekucindezelweni kokushisa nokushintsha kwesigaba phakathi nenqubo yokupholisa. Ukucindezeleka kokucisha kubangelwa ukuguqulwa nokuqhekeka.