Imigoqo yensimbi engagcini yimikhiqizo ehlukahlukene esetshenziswa kakhulu ezinhlelweni ezahlukahlukene ngenxa yezakhiwo zayo ezihlukile. Yakhiwe ikakhulukazi ngensimbi, i-chromium, ne-nickel, le migoqo yenzelwe ukumelana nokugqwala kanye ne-oxidation, ezenza zilungele kuzo zombili izilungiselelo zasendlini nangaphandle. Isimo sebha esiyisicaba, esibonakala ngesigaba esingunxande kanye nezindawo eziyisicaba, kuvumela ukuphathwa okulula nama-ins