Ipuleti lensimbi engagqwali ngokuvamile igama elivamile lepuleti lensimbi engagqwali kanye nepuleti lensimbi elimelana ne-asidi. Ukuphuma ekuqaleni kwaleli khulu leminyaka, ukuthuthukiswa kwepuleti yensimbi engagqwali kuye kwabeka isisekelo esibalulekile kanye nezobuchwepheshe ekuthuthukiseni imboni yesimanje kanye nenqubekelaphambili yesayensi nezobuchwepheshe. Kunezinhlobo eziningi zamapuleti ensimbi engagqwali anezakhiwo ezihlukene, futhi kancane kancane iye yakha izigaba eziningana enqubweni yokuthuthukiswa. Ngokusho kwesakhiwo, ihlukaniswe izigaba ezine: ipuleti lensimbi engagqwali ye-austenitic, ipuleti lensimbi engagqwali ye-martensitic (okuhlanganisa imvula eyenza ipuleti lensimbi engagqwali libe lukhuni), ipuleti lensimbi engagqwali ye-ferritic, nepuleti le-austenitic ferritic duplex lensimbi engagqwali. Ngokuvumelana nokwakheka kwamakhemikhali okuyinhloko kwepuleti lensimbi noma ezinye izici zensimbi ezizohlukaniswa, zihlukaniswe ngepuleti lensimbi engenasici le-chromium, ipuleti lensimbi ye-chromium nickel, ipuleti lensimbi engenalutho ye-chromium nickel molybdenum kanye nepuleti lensimbi engenalutho ye-carbon, ipuleti lensimbi engagqwali ephezulu ye-molybdenum, ipuleti lensimbi engenasici. Ngokwezici zokusebenza nokusetshenziswa kwepuleti lensimbi, ihlukaniswe ipuleti lensimbi engagqwali elimelana ne-nitric acid, ipuleti lensimbi engagqwali eliba ne-sulfuric acid, ipuleti lensimbi engagqwali eligobayo, ipuleti lensimbi engagqwali elingagqwali ekucindezelekeni, ipuleti lensimbi engenasici lamandla aphezulu nokunye. Ngokwezici zokusebenza zepuleti lensimbi, lihlukaniswe izinga lokushisa eliphansi lepuleti lensimbi engenasici, alikho ipuleti lensimbi engagqwali kazibuthe, ukusika okulula ipuleti lensimbi engagqwali, ipuleti le-super plastic stainless steel. Indlela yokuhlukanisa evame ukusetshenziswa ihlukaniswa ngokuvumelana nezici zesakhiwo sepuleti lensimbi kanye nezici zokwakheka kwamakhemikhali epuleti lensimbi kanye nokuhlanganiswa kwezindlela ezimbili. Ngokuvamile ihlukaniswa ngepuleti lensimbi engenalutho ye-martensitic, ipuleti lensimbi engagqwali ye-ferritic, ipuleti lensimbi engagqwali ye-austenitic, ipuleti lensimbi engagqwali eliyi-duplex kanye nohlobo oluqinile lwepuleti lensimbi engagqwali noma ihlukaniswe ngepuleti lensimbi engagqwali ye-chromium kanye nepuleti lensimbi ye-nickel izigaba ezimbili. Ukusetshenziswa okujwayelekile: i-pulp nemishini yephepha Isishintshi sokushisa, okokusebenza kwemishini, okokusebenza kokudaya, okokugeza ifilimu, amapayipi, izinto zokwakha zangaphandle ezisogwini, njll.
Ingaphezulu lepuleti lensimbi engagqwali libushelelezi, linepulasitiki ephezulu, ukuqina namandla emishini, futhi alikwazi ukumelana ne-asidi, igesi ye-alkaline, isixazululo nokunye ukugqwala kwemidiya. Kuyinsimbi ye-alloy okungelula ukugqwala, kodwa ayinayo nhlobo ukugqwala.