Ntawm no yog kev tshaj lij kev sib piv ntawmHastelloy C276 Cov Ntaub Ntawv Sib XwsHla thoob ntiaj teb cov qauv thiab lwm txoj kev xaiv:
1. Lus qhia ncaj qha qib los ntawm cov qauv
| Lub hom phiaj | Sib xws | Qhov sib txawv |
|---|---|---|
| Tsis yog | N10276 | Tib alloy (feem ntau tsim) |
| En (EU) | Nimo16Cr15w (2.4819) | Yuav luag tau muaj pes tsawg leeg |
| ISO | Nimo16Cr15fe6w4 | Me ntsis dav dua keeb kwm |
| JIS (Nyiv) | Nw 0276 | Ntais ntawv uns n10276 |
| GB (Suav Teb) | NS3304 | Me Zam Tawm Tsam Hloov |
2. Kev xaiv ua haujlwm rau cov ntawv thov tshwj xeeb
| Khoom | Zoo tshaj plaws rau | Kev Lag Luam-Offs thiab C276 |
|---|---|---|
| Hastelloy C22 (tsis yog N06022) | Dav Hlau Temp Ntau & Zoo Weldability | Siab dua tus nqi (~ 15-20%) |
| Inconel 625 (tsis yog N06625) | Siab Muaj Zog Xav Tau | Tsawg MO (8% vs. 15-17}%) → qis dua pits Kuj |
| Hastelloy b3 (uns tsis N10675) | Zoo tshaj hcl tsis kam | Txom nyem oxidant tsis kam |
| Zeron 100 (Super Duplex) | Chloride ib puag ncig | Txwv rau 300 degree |
3. Tshuaj lom neeg sib xyaw (WT%)
| Lub ntsiab | C276 | C22 | Inconel 625 |
|---|---|---|---|
| Ni | Bal. | Bal. | Bal. |
| Mo | 15-17 | 12-14 | 8-10 |
| Cr | 14.5-16.5 | 20-22.5 | 20-23 |
| Zaum fe | 4-7 | 2-6 | Tsawg dua los yog sib npaug rau 5 |
| W | 3-4.5 | 2.5-3.5 | - |
| Co las | Tsawg dua los yog sib npaug rau 2.5 | Tsawg dua los yog sib npaug rau 2.5 | Tsawg dua los yog sib npaug rau 1 |
4. Kev Ua Haujlwm Tseem Ceeb
Qhov Kub Txwv Txwv:
C276: {{{-196 degree rau 1093 degree (oxidizing) \/ 400 degree (txo)
C22: Txuas ntxiv rau 1200 degree hauv oxidizing
625: Zoo tshaj plaws rau cryogenic (-270 degree)
Corrosion Kuj:
Zoo tshaj plaws rau hcl: B3> C276> C22
Zoo tshaj plaws rau h₂so₄: C22 ≈ C276> 625
Zoo tshaj plaws rau nacl: C276> Zeron 100> 625
5. Kev Lag Luam Cov Lus Qhia Tshwj Xeeb
Kev Lag Luam: Lo nrog C276 rau kev sib xyaw acid
Roj & Roj (Qaub): C276 lossis C22 rau H₂S \/ CLR
Chaw ua tshuaj paus: Txiav txim siab rau Electropolished C22 rau kev huv si
Tus sawv cev ua tub rog: Zeron 100 rau dej hiav txwv
6. Tus nqi sib piv (ntsuas rau c 276=100)
C276: 100
C22: 115-120
625: 90-95
B3: 85-90
Zeron 100: 70-75
7. Kev Xaiv Tseem Ceeb Xaiv
Thaum hloov C276:
Nrhiav pov thawjChloride Ion Concentration(Tseem Ceeb rau SCC)
KuajPh \/ Kub Profile
Xav zooKev Xav Tau Fabrication(C22 Welds yooj yim dua)
Tshab xyuasKev Lag Luam Kev Lag Luam(piv txwv li MR0175 rau Oilfield)
Rau kev sib npaug nyob rau hauv cov phiaj xwm tswj hwm, ib txwm:
Lus thovASTM B575 \/ B574 Cov Ntawv Cim
Siv tau nrogKev Kuaj Corrosion
NtuasASME SEC II-D Cov Kev Nyuaj Siab
Xav tau kev pab xaiv? Muab:
Te kev pab ib puag ncig ② temp \/ siab ③ Fabrication txoj kev
Peb yuav pom zoo kom cov zoo tshaj plaws alloy.
