2304 Super Duplex Stainless Hlauyog aLan Duplex Stainless Hlau(Tsis yog "super superple," uas feem ntau yog hais txog cov qib siab dua-alloy zoo li 1 . 4501). Nws qib Astm yog:
UNR UNL UNRT S32304
Cov Kev Tsim Qauv:
ASTM A240 Qib S32304
En Txuj:1.4362
| Ntiag tug |
Cov nqi raug (raws li ib astm A240) |
| Lub zog tensile |
Ntau dua los yog sib npaug rau 600 mpa (87,000 psi) |
| Tawm Zog (0.2% offset) |
Ntau dua los yog sib npaug rau 400 MPa (58,000 psi) |
| Elongation thaum so |
Ntau dua los yog sib npaug rau 25% |
| Hardness (HB) |
Tsawg dua los yog sib npaug rau 290 |
| Ceev |
~ 7.8 g / cm³ |
| Modulus ntawm elasticity |
~ 200 GPA (29, 000 ksi) |
| Lub ntsiab |
Qhov hnyav% ntau ntau |
| Carbon (c) |
Tsawg dua los yog sib npaug rau 0.030 |
| Silicon (si) |
Tsawg dua los yog sib npaug rau 1.00 |
| Manganese (mn) |
Tsawg dua los yog sib npaug rau 2.50 |
| Phosphorus (p) |
Tsawg dua los yog sib npaug rau 0.030 |
| Sulphur (s) |
Tsawg dua los yog sib npaug rau 0.020 |
| Chromium (cr) |
22.0 – 23.0 |
| Npib tsib caug (ni) |
3.0 – 5.5 |
| Molybdenum (mo) |
0.10 – 0.60 |
| Nitrogen (n) |
0.05 – 0.20 |
Vim nws cov corrosion tsis kam thiab lub zog, 2304 yog siv nyob rau hauv:
Kev Lag Luam Ua Lag Luam: Reactors, tso tsheb hlau luam, thiab pipelines nthuav tawm cov medosive media .
Marine ib puag ncig: Offshore qauv, dej hiav txwv nruab nrog, thiab nkoj nkoj .
Daim Ntawv Thiab Picp Kev Lag Luam: Cov khoom siv tau nthuav tawm cov tebchaw hauv chlorinated .
Khoom Noj Thiab Dej Haus: Tu cov raj xa khoom thiab cov tso tsheb hlau luam .
Roj thiab Roj Kev Lag Luam: Cov tshuaj tiv thaiv kev ua kom huv si thiab flowlines .
Corrosion Kuj: Siab tsis kam muskev dai, Crevice corrosion, thiabKev ntxhov siab corrosion tawg(SCC) piv rau Austenitic stainless hlau (e {.}}}, .
Lub zog: Ntau dua cov txiaj ntsig muaj zog dua li Austenitic qib, txo cov khoom tuab thiab qhov hnyav hauv cov qauv ....
Nqi-Zoo: Qis dua npib tsib xee dua super duplex lossis ustenitic hlau los, ua rau nws muaj kev lag luam ntau dua rau cov kev siv corrosion-corrosion.
Hwj txwv: Zoo Weldability nrog cov txheej txheem tsim nyog, haum rau kev fabrication hauv cov txheej txheem nyuaj .
Dual microstructure: Lub duplex (ferrite + Austenite + qauv sib npaug nyuaj thiab muaj zog.
