ss321 isithuthi seshishe esikhulu
Imboni yamakhromiumi SS321 yikhangela leliyona inqanawa yokubhanti elikhulu le-austenitic elinikeza ukukhululeka kakhulu kwekholo nekokhwezi kuma-temperatshiwe enkulu. Lesi gade ikhona ithayithani njengomtholi wokuzimela, okuphazamisa ukungena kwekholo yamakhromiumi fakuthi kugcinwe ubunzulu bokwekanga kuma-temperatshiwe uphambi kwe-800°F ukuya kuma-1500°F (427°C ukuya kuma-816°C). Imboni yekhimiya yaleli inqanawa ikhona ngokuphelele 17-19% yamakhromiumi, 9-12% yaniyikili, nezinhlobo ezinhle zethayithani, ukwenza into enkulu enobukhulu kakhulu kuzindlela eziningi. Imboni yeSS321 zinikezwa ngokuzenzakalelayo, kubandakanya ukulahla kwezindawo nezindlela zokwenza okuhle, ukugcina ubunzulu nekakhululo. Lezi mboni zisebenziswa kakhulu kumadivayisi lokuphatha izinhlelo, amakhomithi wokushisa, amavili wokuphuma kwezinhloso, nezindawo zokugcina ukupreza. Ubukhulu bokugcina nekholo yokungena kwekholo yamagribhu kubangela ukuthi zibe yimali esebenzayo kuzindlela ezidinga ukushisa okuphinde kubonakale kuma-temperatshiwe enkulu. Lezi mboni ziguqula izinhlobo zazo nezinhlobo zokugcinwa kwayo noma kuba kushisiwe kumaqondo amaningi, ukwenza yona indlela elungileyo kuzindlela ezinhlelo zokusebenza kaphambili lapho ukubaluleka nokude kubaluleke kakhulu.