Phakathi kwezinto zensimbi engagqwali, 304 insimbi engagqwali kanye 201 insimbi engagqwali izinhlobo ezimbili ezivamile. Zinomehluko othile ekubunjweni kwamakhemikhali, izakhiwo ezingokomzimba, kanye nokusebenza.

Okokuqala, insimbi engagqwali engu-304 iyinsimbi engagqwali enokumelana nokugqwala okuphezulu, okuhlanganisa u-18% we-chromium no-8% we-nickel, kanye nengxenye encane yezinto ezifana ne-carbon, i-silicon, ne-manganese. Lokhu kwakheka kwamakhemikhali kunikeza insimbi engagqwali engu-304 ukumelana nokugqwala okuhle, ukumelana ne-oxidation, nokumelana nezinga lokushisa eliphezulu. Ibuye ibe namandla aphezulu kanye ne-ductility, ngakho-ke ivame ukusetshenziswa ekwenzeni imishini kanye nezingxenye ezinezidingo eziphezulu.

201 insimbi engagqwali yakhiwe 17% kuya ku-19% chromium kanye nickel 4% kuya 6%, kanye nenani elincane carbon, manganese, kanye nitrogen. Uma kuqhathaniswa nensimbi engagqwali engu-304, insimbi engagqwali engu-201 inokuqukethwe kwe-nickel ephansi, ngakho-ke ukumelana nokugqwala kwayo kanye nokumelana nezinga lokushisa eliphezulu kubi kakhulu. Kodwa-ke, insimbi engagqwali engu-201 inamandla angcono kanye nepulasitiki futhi ifanele ezinye izinhlelo zokusebenza ezidingeka kancane zesakhiwo nezokuhlobisa.

Mayelana nezakhiwo ezibonakalayo, ukuminyana kwensimbi engagqwali engu-304 kukhudlwana, cishe amagremu angu-7.93/cubic centimeter, kuyilapho ukuminyana kwensimbi engagqwali engu-201 cishe kungama-7.86 amagremu/cubic centimeter. Ngaphezu kwalokho, insimbi engagqwali engu-304 inokumelana nokugqwala okuhle futhi ingamelana nokugqwala okuvela emkhathini ojwayelekile, amanzi ahlanzekile, umusi, kanye nemidiya yamakhemikhali; kuyilapho 201 insimbi engagqwali ingase ibangele ukugqwala kwezinye izindawo ezonakalisayo.

Mayelana nokusetshenziswa, insimbi engagqwali engu-304 ivame ukusetshenziswa ekwenzeni izinto zamakhemikhali, imikhumbi yamandla, imishini yokucubungula ukudla, nezinye izinkambu ezidinga ukumelana nokugqwala okuphezulu kanye nokumelana nokushisa okuphezulu. Insimbi engagqwali engu-201 ivame ukusetshenziswa ekwenzeni izitsha zasekhishini, umhlobiso wasekhaya, nezinye izikhathi ezidinga amandla aphezulu kanye nepulasitiki kodwa ukumelana nokugqwala okuphansi.

Ngokuvamile, insimbi engagqwali engu-304 inokumelana nokugqwala okungcono, ukumelana nezinga lokushisa eliphezulu, nokumelana ne-oxidation kunensimbi engagqwali engu-201, futhi ifanele amasimu ezimboni anezidingo eziphezulu. I-201 insimbi engagqwali ifaneleka kakhulu ekusetshenzisweni okunamandla aphezulu kanye nezidingo zepulasitiki kodwa izidingo zokumelana nokugqwala ziphansi. Lapho ukhetha izinto zensimbi engagqwali, ukukhethwa kufanele kusekelwe endaweni ethile yokusetshenziswa kanye nezidingo.