ss904L thiab s316l yeeb nkab xa khoom. Tiv tauj peb kom tau txais kev tsocai dawb thiab qauv!
Stainless hlau 904L thiab 316L stainless hlau kavTxhua tus muaj lawv tus kheej lub zog thiab qhov tsis muaj zog. 316L stainless hlau yog tsim rau tus nqi- rhiab heev, kev siv dav dav hauv ib puag ncig corrosive ib puag ncig. 904L stainless hlau, nrog rau nws zoo heev tiv thaiv corrosion heev, yog irreplaceable nyob rau hauv xav tau, tshwj xeeb daim ntawv thov. Peb cov neeg tsim khoom tuaj yeem tsimastm a240 904L seamless thiab welded kavkom ua tau raws li cov kev cai ntawm kev lag luam. Tiv tauj pebmarket@htpipe.comkom paub ntau ntxiv thiab ib daim ntawv tsocai dawb!
uns n08904 thiab s31603 Chemical Composition
| Khoom (%) | 904 L (UNS N08904) NPE | 316L (UAS S31603) |
|---|---|---|
| Cr | 19-23 | 16-18 |
| Ni | 23-28 | 10-14 |
| Mo | 4.0-5.0 | 2.0-3.0 |
| Cu | 1.0-2.0 | Tsawg dua lossis sib npaug li 0.75 |
| C | Tsawg dua los yog sib npaug li 0.02 | Tsawg dua lossis sib npaug li 0.03 |
| PREN Tus nqi | Ntau dua lossis sib npaug rau 33 (Cr+3.3Mo+16N) | Ntau dua lossis sib npaug li 24 |
s904l thiab s316l Mechanical & Physical Properties
| Khoom | 904L | 316L |
|---|---|---|
| Yield zog (MPa) | Ntau tshaj los yog sib npaug rau 220 | Ntau dua lossis sib npaug li 170 |
| Tensile zog (MPa) | Ntau dua lossis sib npaug li 490 | Ntau dua lossis sib npaug rau 485 |
| Hardness (HB) | 70-90 | 70-90 |
| Qhov ceev (g / cm³) | 8.0 | 8.0 |
| Qhov txawv tseem ceeb | Siab dua Mo / Cu txhim khu lub zog tab sis ua kom muaj zog ua haujlwm | Ua kom txias txias |
Corrosion Resistance ntawm ss904l thiab ss316l
(1) s904l thiab s316l hauv Acid Environments
Sulfuric Acid (H₂SO₄):
904L: Resistant boiling dilute sulfuric acid (tsawg dua los yog sib npaug rau 40% concentration).
316L: Tsuas yog tsim rau<10% concentration below 40°C.
Phosphoric Acid (H₃PO₄):
904L: Withstands industrial phosphoric acid nrog fluoride impurities.
316L: fluoride ua rau pitting.
Organic Acids (Acetic / Formic):
904L: Tiv thaiv tag nrho cov concentrations.
316L: Txwv rau qis / nruab nrab concentrations.
(2) stainless hlau 904l thiab 316l hauv Chloride Ib puag ncig
| Khoom | 904L | 316L |
|---|---|---|
| Pitting/Crevice Corr. | Dej hiav txwv / ntsev resistant (tsawg dua los yog sib npaug li 40 degree) | Kev pheej hmoo siab hauv dej hiav txwv |
| Kev ntxhov siab Corrosion Cracking (SCC) | Muaj kev nyab xeeb hauv qab 50 degree | Txaus ntshai tshaj 25 degree |
(3) 904l steel yeeb nkab thiab s31603 yeeb nkab hauv Kev Tshaj Tawm Tshwj Xeeb
904L: Tiv thaiv cov kua qaub sib xyaw (piv txwv li, H₂SO₄ + Cl⁻) thiab slurry nrog cov khib nyiab.
316L: Tsim nyog tsuas yog rau cov xov xwm ntshiab.
Thaum twg kuv yuav tsum xaiv 904L?
Ib puag ncig sulfuric acid:concentration> 10% lossis kub> 40 degree.
Mixed corrosive media:xws li H₂SO₄ + Cl⁻ lossis fluoride-muaj phosphoric acid.
Seawater systems:Ntev - lub sij hawm immersion los yog qis - cheeb tsam ntws.
Siab -purity yuav tsum:Cov khoom siv tshuaj / semiconductor (904L nto tiv taus ntau dua).
