Simbi isina simbi iboka remaferrous alloys ane hushoma hunosvika 11% chromium, chimiro chinodzivirira simbi kuti isaite ngura uye zvakare inopa inodzivirira kupisa.Mhando dzakasiyana dzesimbi isina tsvina dzinosanganisira zvinhu kabhoni (kubva pa0.03% kusvika kuhukuru kupfuura 1.00%), nitrogen, aluminium, silicon, sarufa, titanium, nickel, mhangura, selenium, niobium, uye molybdenum.Marudzi chaiwo esimbi isina tsvina anowanzo kusarudzwa neAISI nhamba-matatu nhamba, semuenzaniso, 304 isina tsvina.