904 mbale yachitsulo chosapanga dzimbiriNdi mtundu wa chitsulo chosapanga dzimbiri cha austenitic chokhala ndi mpweya wochepa kwambiri komanso chosakanikirana kwambiri chomwe chimapangidwira malo omwe ali ndi dzimbiri kwambiri. Chimalimbana ndi dzimbiri bwino kuposa 316L ndi 317L, poganizira mtengo ndi magwiridwe antchito. Mtengo wake ndi wabwino. Chifukwa cha kuwonjezera 1.5% ya mkuwa, chimakhala ndi kukana kwabwino kwambiri kwa dzimbiri motsutsana ndi ma acid ochepetsa monga sulfuric acid ndi phosphoric acid. Chimakhalanso ndi kukana kwabwino kwambiri kwa dzimbiri motsutsana ndi kupsinjika, kuphulika kwa dzenje ndi dzimbiri zomwe zimayambitsidwa ndi ma ayoni ovuta, ndipo chimalimbana bwino ndi dzimbiri la intergranular. Mu sulfuric acid yoyera yomwe ili pakati pa 0-98%, kutentha kwa mbale yachitsulo ya 904L kumatha kufika madigiri 40 Fahrenheit.
Mu asidi woyera womwe uli pakati pa 0-85%, kukana kwake dzimbiri kumakhala bwino kwambiri. Mu phosphoric acid ya mafakitale yopangidwa ndi njira zonyowa, zinthu zosafunika zimakhudza kwambiri kukana dzimbiri. Pakati pa mitundu yonse ya ma asidi, 904L super austenitic stainless steel imakhala ndi kukana dzimbiri bwino kuposa chitsulo chosapanga dzimbiri wamba. Mu nitric acid yolimba kwambiri, 904L stainless steel imakhala ndi kukana dzimbiri kochepa kuposa zitsulo zopangidwa ndi alloy kwambiri zomwe zilibe siliva. Mu hydrochloric acid, kugwiritsa ntchitoMbale zachitsulo zosapanga dzimbiri za 904Lzimangochepetsa kuchuluka kwa shuga m'magazi ndi 1-2%.
Mu asidi woyera womwe uli pakati pa 0-85%, kukana kwake dzimbiri kumakhala bwino kwambiri. Mu phosphoric acid ya mafakitale yopangidwa ndi njira zonyowa, zinthu zosafunika zimakhudza kwambiri kukana dzimbiri. Pakati pa mitundu yonse ya ma asidi, 904L super austenitic stainless steel imakhala ndi kukana dzimbiri bwino kuposa chitsulo chosapanga dzimbiri wamba. Mu nitric acid yolimba kwambiri, 904L stainless steel imakhala ndi kukana dzimbiri kochepa kuposa zitsulo zopangidwa ndi alloy kwambiri zomwe zilibe siliva. Mu hydrochloric acid, kugwiritsa ntchitoMbale zachitsulo zosapanga dzimbiri za 904Lzimangochepetsa kuchuluka kwa shuga m'magazi ndi 1-2%.
| Giredi | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| 904L | 0.020 pasadakhale | 2.00 payokha | 1.00 payokha | 0.040 pasadakhale | 0.030 pasadakhale | 19.00 – 23.00 | 4.00 – 5.00 pasadakhale | 23.00 – 28.00 | 1.00 – 2.00 |
Nthawi yotumizira: Meyi-23-2024