904 insimbi engagqwali plateiwuhlobo lwensimbi engagqwali ye-austenitic enokuqukethwe kwekhabhoni ephansi kakhulu kanye nengxubevange ephezulu eyenzelwe izindawo ezinezimo zokugqwala ezinzima.Inokumelana nokugqwala okungcono kuno-316L no-317L, kuyilapho icabangela kokubili intengo nokusebenza.Inani elihle lemali.Ngenxa yokwengezwa kwethusi elingu-1.5%, inokumelana nokugqwala okuhle kakhulu ekunciphiseni ama-asidi afana ne-sulfuric acid ne-phosphoric acid.Futhi inokumelana nokugqwala okuhle kakhulu ngokumelene nokugqwala kwengcindezi, ukugqwala kwemigodi kanye nokugqwala okubangelwa ama-ion ayinkimbinkimbi, futhi inokumelana kahle nokugqwala kwe-intergranular.Ku-sulfuric acid emsulwa ebangeni lokuhlushwa lika-0-98%, izinga lokushisa lesevisi yepuleti lensimbi elingu-904L lingaba phezulu libe ngu-40 degrees Fahrenheit.
Ku-asidi ehlanzekile ebangeni lokuhlushwa lika-0-85%, ukumelana nokugqwala kwayo kuhle kakhulu.Ezimbonini ze-phosphoric acid ezikhiqizwa izinqubo ezimanzi, ukungcola kunomthelela oqinile ekuphikiseni ukugqwala.Phakathi kwazo zonke izinhlobo zama-asidi, i-904L super austenitic insimbi engagqwali inokumelana nokugqwala okungcono kunensimbi engagqwali evamile.Ku-nitric acid ene-oxidizing kakhulu, insimbi engagqwali engu-904L inokumelana nokugqwala okuphansi kunezinsimbi ezixubene kakhulu ezingenayo isiliva.Ku-hydrochloric acid, ukusetshenziswa kwe-904L amapuleti ensimbi engagqwaliinqunyelwe ekugxilweni okuphansi kwe-1-2%.
Ku-asidi ehlanzekile ebangeni lokuhlushwa lika-0-85%, ukumelana nokugqwala kwayo kuhle kakhulu.Ezimbonini ze-phosphoric acid ezikhiqizwa izinqubo ezimanzi, ukungcola kunomthelela oqinile ekuphikiseni ukugqwala.Phakathi kwazo zonke izinhlobo zama-asidi, i-904L super austenitic insimbi engagqwali inokumelana nokugqwala okungcono kunensimbi engagqwali evamile.Ku-nitric acid ene-oxidizing kakhulu, insimbi engagqwali engu-904L inokumelana nokugqwala okuphansi kunezinsimbi ezixubene kakhulu ezingenayo isiliva.Ku-hydrochloric acid, ukusetshenziswa kwe-904L amapuleti ensimbi engagqwaliinqunyelwe ekugxilweni okuphansi kwe-1-2%.
| Ibanga | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| 904L | 0.020 ubuningi | 2.00 ubuningi | 1.00 ubuningi | 0.040 ubuningi | 0.030 ubuningi | 19.00 - 23.00 | 4.00 - 5.00 ubuningi | 23.00 - 28.00 | 1.00 - 2.00 |
Isikhathi sokuthumela: Oct-30-2023