904L stainless hlau yog ib qho uas tsis yog -stabilized austenitic stainless hlau nrog cov ntsiab lus qis carbon. Qhov no high alloy stainless hlau yog ntxiv nrog tooj liab los txhim kho nws cov kev tiv thaiv kom muaj zog txo acids, xws li sulfuric acid.
904L yog austenitic stainless hlau. Nws yog ib qho nyuaj tshaj 316L, thiab nws cov molybdenum ntxiv muab nws superior tsis kam mus rau hauv zos nres (pitting thiab crevice corrosion) los ntawm chlorides thiab ntau dua kuj txo acids; tshwj xeeb, nws cov tooj liab ntxiv muab nws cov txiaj ntsig zoo corrosion rau tag nrho cov ntsiab lus ntawm sulfuric acid. Nws cov ntsiab lus siab alloying kuj tseem ua rau nws ua haujlwm ntau dua rau chloride kev nyuaj siab corrosion cracking, tab sis nws tseem raug. Nws cov ntsiab lus tsis tshua muaj carbon ua rau nws resistant rau rhiab heev los ntawm vuam thiab uas tiv thaiv intergranular corrosion.
Nws muaj cov ntawv thov hauv cov kav dej, cov cuab yeej tswj kev ua qias tuaj, cov khoom siv hluav taws xob sib hloov, thiab cov tshuab bleaching.
Kev sib xyaw
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Nickel yog 23-28%
Chromium 19-23%
Carbon, 0.02% siab tshaj
tooj liab, 1-2%
Molybdenum 4-5%
Manganese, 2% siab tshaj
Silicon, 1.0% siab tshaj
Hlau, (sib npaug)
Daim ntawv thov
Cov nroj tsuag tshuaj, roj refinery, petrochemical nroj tsuag, bleaching tank rau daim ntawv kev lag luam, combustion gas desulfurisation nroj tsuag, thov nyob rau hauv dej hiav txwv, sulfuric thiab phosphoric acid. Vim yog C- cov ntsiab lus qis, qhov tsis kam mus rau intergranular corrosion kuj tau lees tias nyob rau hauv cov xwm txheej welded.
Kev Ua Haujlwm / Vuam
Cov txheej txheem vuam txheej txheem rau qib steel no yog:
TIG-Vuam
MAG-Vuam Khoom Hlau
Arc vuam (E)
Laser Bean Vuam
Submerged Arc Welding (SAW)
Siv cov ntaub ntawv ntawm qee lub cev muaj zog
| Qhov ceev ntawm 20℃kg / m3 | 8.0 | |
|---|---|---|
| Thermal conductivity W/m K ntawm | 20 degree | 12 |
| Modulus ntawm Elasticity kN / mm2ntawm | 20 degree | 195 |
| 200 degree | 182 | |
| 400 degree | 166 | |
| 500 degree | 158 | |
| Tshwj xeeb Thermal Capacity ntawm 20℃J / kg K | 450 | |
| Hluav taws xob Resistivity ntawm 20℃Ω mm2/m | 1.0 | |
Qib Specification Sib piv
| Qib | UNS No | Laus British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | Tsis muaj | Lub npe | ||||
| 904L | N08904 | 904S13 | - | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | - |
Cim npe nrov: Stainless hlau 904l, Tuam Tshoj stainless hlau 904l manufacturers, lwm tus neeg, Hoobkas
