SS904L AISI 904L Bakin Karfe (UNS N08904)
Gabatarwar Samfur
AISI 904L bakin karfe (UNS N08904) babban gami ne austenitic bakin karfe. Idan aka kwatanta da 316L, SS904L yana da ƙananan abun ciki na carbon (C), mafi girma abun ciki na chromium (Cr), kuma kusan sau biyu na nickel (Ni) da molybdenum (Mo) abun ciki na316l, wanda ya sa ya sami mafi girma high zafin jiki oxidation juriya, pitting juriya, da juriya ga rage acid (misali, sulfuric acid). Nitrogen (N) na iya rage yawan hazo na chromium carbide, ta haka ne ya rage ji na ji, yana kuma inganta juriya ga ramuka da lalata da chlorides ke haifarwa. Musamman abin da ya tara na jan ƙarfe (Cu) yana sa ya zama mai amfani ga duk yawan adadin sulfuric acid.
Alloy 904L yayi mafi kyau fiye da sauran austenitic bakin karfe saboda mafi girma gami da nickel da molybdenum. Matsayin ba shi da maganadisu a cikin kowane yanayi kuma yana da kyakkyawan tsari da walƙiya. Har ila yau, tsarin austenitic yana ba da wannan matsayi mai kyau, har zuwa yanayin zafi na cryogenic Babban abun ciki na chromium yana inganta da kuma kula da fim mai banƙyama wanda ke kare kayan a yawancin wurare masu lalata. Babu haɗarin lalata intercrystalline akan sanyaya ko walda saboda ƙarancin abun ciki na carbon. Matsakaicin zafin sabis ɗin sa shine 450 ° C. Wannan matakin yana da amfani musamman a cikin sarrafawa da aikace-aikacen bututun kayan aiki inda 316 da 317L ba su dace ba.
Alloy 904L an samo asali ne don jure yanayin da ke dauke da sulfuric acid. Hakanan yana ba da juriya mai kyau ga sauran inorganic acid kamar zafi phosphoric acid da kuma mafi yawan kwayoyin acid.
Alloy 904L yana da sauƙin waldawa kuma ana sarrafa shi ta daidaitattun ayyukan ƙirƙira kanti.
904L bakin karfe (SS904L) ana amfani dashi a cikin man fetur, sinadarai, taki, hasumiya na raya ruwa, tankuna, bututu da bututu da masu musayar zafi. Rolex da sauran masana'antun agogo suma suna amfani da shi don yin agogo
Abubuwan Bukatun Sinadarai
Alloy 904L (UNS NO8904)
Abun ciki %
| C Carbon | Mn Manganese | P Phosphorous | S Sulfur | Si Siliki | Ni Nickel | Cr Chromium | Mo Molybdenum | N Nitrogen | Cu Copper |
| 0.020 max | 2.00 max | 0.040 max | 0.030 max | 1.00 max | 23.0-28.0 | 19.0-23.0 | 4.0-5.0 | 0.10 max | 1.00-2.00 |
| Kayayyakin Injini | |
| Ƙarfin Haɓaka | 31 Ksi min |
| Ƙarfin Ƙarfi | 71 Ksi min |
| Tsawaita (minti 2) | 35% |
| Hardness (Rockwell B Scale) | Babban darajar HRB90 |
| Matsakaicin izinin izini (naúrar: BAR) | ||||||||
| Kaurin bango (mm) | ||||||||
| 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.96 | 4.78 | ||
| OD (mm) | 6.35 | 393 | 572 | 783 | 1012 | |||
| 9.53 | 253 | 362 | 499 | 657 | 883 | |||
| 12.7 | 186 | 265 | 362 | 476 | 646 | |||
| 19.05 | 172 | 233 | 304 | 410 | ||||
| 25.4 | 128 | 172 | 223 | 299 | 443 | 549 | ||
| 31.8 | 136 | 176 | 235 | 345 | 425 | |||
| 38.1 | 113 | 146 | 194 | 283 | 348 | |||
| 50.8 | 84 | 108 | 143 | 208 | 255 | |||
Certificate na Daraja
ISO9001/2015 Standard
ISO 45001/2018 Standard
Takaddun shaida na PED
Takaddun gwajin dacewa na TUV Hydrogen
| A'a. | Girman (mm) | |
| OD | Thk | |
| BA Tube Inner surface roughness Ra0.35 | ||
| 1/4" | 6.35 | 0.89 |
| 6.35 | 1.00 | |
| 3/8" | 9.53 | 0.89 |
| 9.53 | 1.00 | |
| 1/2” | 12.70 | 0.89 |
| 12.70 | 1.00 | |
| 12.70 | 1.24 | |
| 3/4” | 19.05 | 1.65 |
| 1 | 25.40 | 1.65 |
| BA Tube Inner surface roughness Ra0.6 | ||
| 1/8" | 3.175 | 0.71 |
| 1/4" | 6.35 | 0.89 |
| 3/8" | 9.53 | 0.89 |
| 9.53 | 1.00 | |
| 9.53 | 1.24 | |
| 9.53 | 1.65 | |
| 9.53 | 2.11 | |
| 9.53 | 3.18 | |
| 1/2" | 12.70 | 0.89 |
| 12.70 | 1.00 | |
| 12.70 | 1.24 | |
| 12.70 | 1.65 | |
| 12.70 | 2.11 | |
| 5/8" | 15.88 | 1.24 |
| 15.88 | 1.65 | |
| 3/4" | 19.05 | 1.24 |
| 19.05 | 1.65 | |
| 19.05 | 2.11 | |
| 1" | 25.40 | 1.24 |
| 25.40 | 1.65 | |
| 25.40 | 2.11 | |
| 1-1/4" | 31.75 | 1.65 |
| 1-1/2" | 38.10 | 1.65 |
| 2" | 50.80 | 1.65 |
| 10 A | 17.30 | 1.20 |
| 15 A | 21.70 | 1.65 |
| 20 A | 27.20 | 1.65 |
| 25 A | 34.00 | 1.65 |
| 32A | 42.70 | 1.65 |
| 40A | 48.60 | 1.65 |
| 50A | 60.50 | 1.65 |
| 8.00 | 1.00 | |
| 8.00 | 1.50 | |
| 10.00 | 1.00 | |
| 10.00 | 1.50 | |
| 10.00 | 2.00 | |
| 12.00 | 1.00 | |
| 12.00 | 1.50 | |
| 12.00 | 2.00 | |
| 14.00 | 1.00 | |
| 14.00 | 1.50 | |
| 14.00 | 2.00 | |
| 15.00 | 1.00 | |
| 15.00 | 1.50 | |
| 15.00 | 2.00 | |
| 16.00 | 1.00 | |
| 16.00 | 1.50 | |
| 16.00 | 2.00 | |
| 18.00 | 1.00 | |
| 18.00 | 1.50 | |
| 18.00 | 2.00 | |
| 19.00 | 1.50 | |
| 19.00 | 2.00 | |
| 20.00 | 1.50 | |
| 20.00 | 2.00 | |
| 22.00 | 1.50 | |
| 22.00 | 2.00 | |
| 25.00 | 2.00 | |
| 28.00 | 1.50 | |
| BA Tube, Babu buƙatu game da rashin ƙarfi na ciki | ||
| 1/4" | 6.35 | 0.89 |
| 6.35 | 1.24 | |
| 6.35 | 1.65 | |
| 3/8" | 9.53 | 0.89 |
| 9.53 | 1.24 | |
| 9.53 | 1.65 | |
| 9.53 | 2.11 | |
| 1/2" | 12.70 | 0.89 |
| 12.70 | 1.24 | |
| 12.70 | 1.65 | |
| 12.70 | 2.11 | |
| 6.00 | 1.00 | |
| 8.00 | 1.00 | |
| 10.00 | 1.00 | |
| 12.00 | 1.00 | |
| 12.00 | 1.50 | |