Insimbi engagqwali iyi-alloy enokubukeka okukhangayo kakhulu. Idingeka kakhulu njengoba inamandla okumelana nokugqwala nezinye izinhlobo ezahlukene zokugqwala. Izakhiwo zensimbi engagqwali ukuthi empeleni zinezakhiwo ezifanayo futhi ngenxa yalokho insimbi engagqwali ibhekwa njengento esezingeni eliphezulu futhi efanelekela kahle izinselele zesikhathi samanje. Itholakala ngamamaki ahlukahlukene nezigaba futhi ngayinye yalezi ihlukaniswa ngezici ezithile. I-Chromium ikhona ku-SS yingakho i-stainless futhi yingakho futhi iyisizathu sokuthi imelane nokugqwala.