Hastelloy yog dab tsi?
Hastelloy yog ibsiab -kev ua tau zoo nickel- raws li tsev neeg alloyrenowned rau nwsexceptional corrosion kuj, siab - qhov kub thiab txias, thiabzoo heev fabricabilitynyob rau hauv huab muaj ib puag ncig. Hastelloy alloys tau siv dav hauvKev tsim tshuaj lom neeg, roj & roj, aerospace, tsim hluav taws xob, tswj kev ua qias tuaj, thiab kev lag luam tshuaj, qhov twg cov pa stainless hlau los yog cov txheej txheem nickel alloys ua tsis tiav.
Keeb kwm tsim los ntawm Haynes International, Hastelloy tau dhau los ua ib qhoCov khoom siv ntsuas rau corrosion-resistant alloys (CRAs), tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov kev koom tesmuaj zog acids, chlorides, siab siab, thiab siab kub.
Hastelloy txhais (Technical Explanation)
Hastelloy hais txog ibpawg nickel-raws li superalloysFeem ntau alloyed nrog:
Chromium (Cr)- oxidation thiab corrosion kuj
Molybdenum (hli)- tiv thaiv pitting, crevice corrosion, thiab txo acids
Hlau (Fe)- Cov qauv kev ruaj ntseg thiab tus nqi sib npaug
Cobalt (Co), Tungsten (W), Aluminium (Al)- txhim kho siab - qhov kub thiab txias
Cov alloys no yog engineered los muabzoo heev tiv thaiv corrosion tsis zoo, localized corrosion, stress corrosion cracking (SCC), thiab siab -kub oxidation.
Exceptional Corrosion Resistance
Hastelloy alloys ua tau zoo tshwj xeeb hauv:
Sulfuric acid
Hydrochloric acid
Nitric acid
Phosphoric acid
Mixed acid ib puag ncig
Cov roj chlorine ntub dej
Cov dej hiav txwv thiab cov tshuaj chloride- nplua nuj media
Piv nrog316L stainless hlau los yog Monel, Hastelloy muajho superior kujraupitting corrosion, crevice corrosion, thiab SCC.
Siab -Tsub Muaj Zog & Kev ruaj ntseg
Hastelloy tuav:
High mechanical zog
Microstructural stability
Oxidation kuj
ntawm qhov kub thiab txias mus txog1000℃(1832℃F), ua rau nws zoo tagnrho rauThaum tshav kub kub exchangers, reactors, thiab roj turbine Cheebtsam.
Zoo heev Fabricability & Weldability
Txawm hais tias nws cov ntsiab lus siab alloy, Hastelloy tuaj yeem yog:
Kub-ua haujlwm thiab txias- ua haujlwm
Machined nrog tswj tooling
Welded siv cov txheej txheem GTAW / GMAW
Qhov no ua rau nws haum raucomplex fabricated khoomxws licov hlab ntsha, kab, thiab cov kav dej.
Resistance to Stress Corrosion Cracking (SCC)
Hastelloy qhia tau zoo heev rau:
Chloride -induced SCC
High -siab acidic ib puag ncig
High -kub aqueous systems
Cov cuab yeej no tseem ceeb hauvtshuaj reactors, offshore platforms, thiab refining units.
Common Hastelloy Qib – Technical Comparison Table
| Hastelloy Qib | UNS No. | Lub ntsiab Alloying Elements | Cov khoom tseem ceeb | Tej kev siv |
|---|---|---|---|---|
| Hastelloy C-276 | N10276 | Ni-Cr-Mo-Fe | Zoo heev tiv taus pitting, crevice corrosion & SCC; ua tau zoo hauv oxidizing & txo cov xov xwm | Chemical reactors, kub exchangers, scrubbers, siab hlab ntsha |
| Hastelloy C-22 | N06022 | Ni-Cr-Mo-W | Superior kuj rau localized corrosion; kev ua tau zoo hauv cov kua qaub sib xyaw | Thaum tshav kub kub exchangers, flanges, cov khoom siv tshuaj |
| Hastelloy C-2000 | N06200 | Ni-Cr-Mo-Cu | Kev tiv thaiv zoo heev rau ob qho tib si oxidizing & txo cov kua qaub, tshwj xeeb tshaj yog sulfuric acid | Cov khoom siv tshuaj ua haujlwm, cov kua qaub rov qab |
| Hastelloy X | N06002 | Ni-Cr-Fe-Mo | Siab - kub lub zog thiab oxidation tsis kam mus txog ~ 1200 degree | Gas turbines, aerospace Cheebtsam, qhov cub tawg |
| Hastelloy B-2 | N10665 | Ni – Mo | Kev tiv thaiv zoo rau hydrochloric acid thiab txo qhov chaw ib puag ncig | Acid tuav systems, reactors, piping |
| Hastelloy B-3 | N10675 | Ni – Mo | Txhim kho thermal stability thiab intergranular corrosion kuj vs B-2 | Chemical reactors, kub exchangers |
| Hastelloy G-30 | N06030 | Ni-Cr-Fe-Mo-Cu | Zoo heev tiv thaiv phosphoric & nitric acid | Fertilizer thiab chemical processing equipment |
| Hastelloy G-35 | N06035 | Ni-Cr-Mo-Cu | Txhim kho sulfuric acid kuj | Kev ua tshuaj lom neeg, acid nroj tsuag |
| Hastelloy N | N10003 | Ni-Mo-Cr | Zoo heev - kub stability nyob rau hauv molten ntsev ib puag ncig | Nuclear & molten ntsev systems |
ASTM / UNS / EN Cross Reference Table - Hastelloy Alloys
| Hastelloy Qib | UNS No. | ASTM / ASME Cov Qauv (Common) | EN / DIN sib npaug | Ib puag ncig daim ntawv thov |
|---|---|---|---|---|
| Hastelloy C-276 | N10276 | ASTM B575/B619/B622/B626 | TS EN 2.4819 | Mixed acids, chlorides, tshuaj reactors |
| Hastelloy C-22 | N06022 | ASTM B575/B619/B622 | TS EN 2.4602 | Pitting & crevice corrosion, tshav kub exchangers |
| Hastelloy C-2000 | N06200 | ASTM B575/B619/B622 | TS EN 2.4675 | Sulfuric acid, oxidizing & txo cov acids |
| Hastelloy C-4 | N06455 | ASTM B575/B619/B622 | TS EN 2.4610 | Siab -kub corrosion kuj |
| Hastelloy B-2 | N10665 | ASTM B333 / B619 / B622 / ASTM B333 / B619 / B622 / TS | TS EN 2.4617 | Hydrochloric acid, txo qhov chaw |
| Hastelloy B-3 | N10675 | ASTM B333 / B619 / B622 / ASTM B333 / B619 / B622 / TS | TS EN 2.4600 | Txhim kho HCl tsis kam, zoo dua stability |
| Hastelloy G-30 | N06030 | ASTM B582 / B619 Cov Lus Qhia Tshwj Xeeb | TS EN 2.4603 | Phosphoric thiab nitric acid systems |
| Hastelloy G-35 | N06035 | ASTM B575 / B619 Cov Lus Qhia | TS EN 2.4645 | Sulfuric acid ua |
| Hastelloy X | N06002 | ASTM B435/B619/B622 | TS EN 2.4665 | High -kub oxidation, roj turbines |
| Hastelloy XR | N06004 | ASTM B 435 3 | EN 2.4665 (Variant) | Gas turbine & cub Cheebtsam |
| Hastelloy N | N10003 | ASTM B573 / B619 Cov Lus Qhia | TS EN 2.4816 | Molten ntsev & nuclear daim ntawv thov |
Hastelloy Chemical Composition Table
| Qib | UNS | Ni | Cr | Mo | Fe | Co | W | Cu | Mn | Si | C | Lwm yam |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hastelloy C-276 | N10276 | Bal. | 14.5–16.5 | 15.0–17.0 | 4.0–7.0 | Tsawg dua lossis sib npaug li 2.5 | 3.0–4.5 | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.01 | V Tsawg dua lossis sib npaug li 0.35 |
| Hastelloy C-22 | N06022 | Bal. | 20.0–22.5 | 12.5–14.5 | 2.0–6.0 | Tsawg dua lossis sib npaug li 2.5 | 2.5–3.5 | - | Tsawg dua los yog sib npaug li 0.5 | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua lossis sib npaug li 0.015 | - |
| Hastelloy C-2000 | N06200 | Bal. | 22.0–24.0 | 15.0–17.0 | Tsawg dua los yog sib npaug rau 3.0 | Tsawg dua lossis sib npaug li 2.0 | - | 1.3–1.9 | Tsawg dua los yog sib npaug li 0.5 | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.01 | - |
| Hastelloy C-4 | N06455 | Bal. | 14.0–18.0 | 14.0–17.0 | Tsawg dua los yog sib npaug rau 3.0 | Tsawg dua lossis sib npaug li 2.0 | - | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.01 | - |
| Hastelloy B-2 | N10665 | Bal. | Tsawg dua los yog sib npaug rau 1.0 | 26.0–30.0 | Tsawg dua lossis sib npaug li 2.0 | Tsawg dua los yog sib npaug rau 1.0 | - | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua los yog sib npaug li 0.01 | - |
| Hastelloy B-3 | N10675 | Bal. | 1.0–3.0 | 26.0–30.0 | Tsawg dua los yog sib npaug rau 3.0 | Tsawg dua los yog sib npaug rau 3.0 | - | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua los yog sib npaug li 0.01 | - |
| Hastelloy G-30 | N06030 | Bal. | 28.0–31.5 | 4.0–6.0 | 13.0–17.0 | Tsawg dua los yog sib npaug rau 5.0 | - | 1.5–4.0 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.8 | Tsawg dua lossis sib npaug li 0.02 | - |
| Hastelloy G-35 | N06035 | Bal. | 32.0–35.0 | 7.0–9.0 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 1.0 | - | Tsawg dua los yog sib npaug li 0.5 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua lossis sib npaug li 0.6 | Tsawg dua los yog sib npaug li 0.01 | - |
| Hastelloy X | N06002 | Bal. | 20.5–23.0 | 8.0–10.0 | 17.0–20.0 | 0.5–2.5 | Tsawg dua los yog sib npaug rau 1.0 | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 1.0 | 0.05–0.15 | - |
| Hastelloy XR | N06004 | Bal. | 20.5–23.0 | 8.0–10.0 | 17.0–20.0 | 0.5–2.5 | Tsawg dua los yog sib npaug rau 1.0 | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.08 | La ntxiv |
| Hastelloy N | N10003 | Bal. | 6.0–8.0 | 15.0–18.0 | Tsawg dua los yog sib npaug rau 5.0 | Tsawg dua los yog sib npaug li 0.2 | - | - | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.5 | Tsawg dua los yog sib npaug li 0.05 | Al, Ti (txoj kev) |
Lub luag haujlwm ntawm Cov Ntsiab Lus Alloying hauv Hastelloy
| Alloying Element | Lub luag haujlwm tseem ceeb | Kev cuam tshuam rau Corrosion Resistance |
|---|---|---|
| Nickel (Ni) | Stabilizes austenitic qauv | Kev tiv thaiv zoo heev rau kev xeb dav dav thiab siab -kub acids |
| Chromium (Cr) | Cov ntaub ntawv tiv thaiv passive oxide zaj duab xis | Kev tiv thaiv oxidation, pitting, thiab crevice corrosion |
| Molybdenum (hli) | Suppresses anodic dissolution | Qhov zoo tshaj plaws tiv thaiv kom tsis txhob acids thiab localized corrosion |
| Tungsten (W) | Txhim kho Mo efficiency | Txhim khu kev ruaj ntseg nyob rau hauv qhov hnyav acid ib puag ncig |
| Copper (Cu) | Hloov cov cwj pwm electrochemical | Tseem ceeb txhim kho sulfuric acid kuj |
| Hlau (Fe) | Structure stability, tus nqi sib npaug | Cov nyhuv nruab nrab ntawm corrosion kuj |
| Tsawg carbon / Silicon | Minimizes carbide nag lossis daus | Txhim kho weldability thiab intergranular corrosion kuj |
Engineering Insight:
Mo & W → txo cov kua qaub
Cr → oxidizing media & chloride pitting kuj
Cu → sulfuric acid kev ua tau zoo
Composition vs Corrosion Media Performance
| Hastelloy Qib | Ua kom pom tseeb | Chlorides | Hydrochloric acid | Sulfuric Acid | Mixed Acids | Siab -Tub kub oxidation |
|---|---|---|---|---|---|---|
| C-276 | Mo + W | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| C-22 | Siab Cr + Mo | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| C-2000 | Cr + Mo + Cu | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ |
| B-2 | Mos siab heev, qis Cr | ⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐ | ⭐⭐ |
| B-3 | Mo nrog txhim kho thermal stability | ⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐ | ⭐⭐ |
| G-30 | Siab Cr + Cu | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| G-35 | Zoo heev Cr | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| Hastelloy X | Cr + Fe (siab-kub alloy) | ⭐⭐ | ⭐ | ⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐⭐ |
Qhov zoo tshaj plaws Hastelloy Chemistry rau txawv Corrosion Mechanisms
Chloride Pitting & Crevice Corrosion
Cov ntsiab lus tseem ceeb:Siab Cr + Mo (+ W)
Cov qib uas pom zoo: C-22, C-276
Tej kev siv:
Seawater systems
Thaum tshav kub kub exchanger tubing
Kev ntub dej chlorine ib puag ncig
Strong Reducing Acids (Tshwj xeeb yog HCl)
Cov ntsiab lus tseem ceeb:Mos siab heev, qis Cr
Cov qib uas pom zoo: B-2, B-3
Tej kev siv:
Hydrochloric acid reactors
Acid pickling khoom
⚠ Tsis pom zoo rau oxidizing lossis sib xyaw -acid ib puag ncig
Sulfuric Acid Systems
Cov ntsiab lus tseem ceeb:Cu + Cr
Cov qib uas pom zoo: C-2000, G-30, G-35
Tej kev siv:
Sulfuric acid concentration units
Fertilizer nroj tsuag
Acid rov qab systems
Mixed los yog Uncertain Chemical Media
Cov ntsiab lus tseem ceeb:Balanced Cr-Mo tsim
Cov qib uas pom zoo: C-276, C-22
Qhov zoo:
Broad corrosion kuj qhov rais
Siab kam rau ua cov txheej txheem hloov pauv
Nyiam "kev xaiv nyab xeeb" hauv engineering tsim
High -Tub kub Oxidizing Ib puag ncig
Cov ntsiab lus tseem ceeb:Cr + Fe nrog cov khoom ruaj khov - kev daws teeb meem
Qib pom zoo:Hastelloy X
Tej kev siv:
Roj turbines
Rauv Cheebtsam
Aerospace kub- ntu ntu
Peb lub Hoobkas
Muaj lus nug txogHastelloy alloyslos yog xav tau ibkev cai quote? Peb pab pawg kws tshaj lij tau npaj los pab koj.
Peb qhov chaw nyob
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Hastelloy Composition & Corrosion Resistance - FAQ
1. Hastelloy yog dab tsi?
Hastelloy yog ibnickel-raws li alloyfeem ntau yog tsim los ntawmNickel (Ni), Chromium (Cr), thiabMolybdenum (hli), nrog yeem ntxiv ntawmTungsten (W), Copper (Cu), Hlau (Fe), thiab kab kawm.
Qhov muaj pes tsawg leeg sib txawv los ntawm qib mus rau lub hom phiaj tshwj xeeb corrosion mechanisms.
2. Vim li cas Hastelloy muaj kev tiv thaiv corrosion zoo dua li cov hlau tsis muaj steel?
Hastelloy muajntau qib ntawm Mo thiab Nitshaj stainless hlau.
Momuab superior tiv taustxo cov acids thiab crevice corrosion
Niua kom ruaj khov nyob rau hauv siab -kub thiab acidic ib puag ncig
Crtxhim kho oxidation thiab pitting kuj
Qhov kev sib xyaw no tso cai rau Hastelloy ua haujlwm zoo dua304/316 stainless hlaunyob rau hauv aggressive tshuaj tej yam kev mob.
3. Hastelloy qib twg yog qhov zoo tshaj rau hydrochloric acid (HCl)?
Hastelloy B-2 thiab B-3yog cov kev xaiv zoo tshaj plaws rauhydrochloric acidvim lawvcov ntsiab lus molybdenum siab heevthiab qib chromium tsawg.
⚠ Cov qib no yuav tsumtsis yogsiv rau hauv oxidizing lossis sib xyaw-acid ib puag ncig.
4. Yam twg Hastelloy alloy yog qhov zoo tshaj plaws rau sulfuric acid?
Rau kev pabcuam sulfuric acid, qib uas muajCopper (Cu)ua qhov zoo tshaj plaws:
Hastelloy C-2000
Hastelloy G-30
Hastelloy G-35
tooj liab ho txhim khu kev tiv thaiv rausulfuric acid corrosion, tshwj xeeb tshaj yog nyob rau nruab nrab mus rau high concentrations.
5. Yuav ua li cas chromium cuam tshuam rau Hastelloy corrosion kev ua tau zoo?
Chromium forms ativ thaiv passive oxide txheej, txhim kho kev tiv thaiv rau:
Oxidizing ib puag ncig
Chloride pitting
Kev txhim kho corrosion
Qib nrog cov ntsiab lus chromium siab dua, xws liC-22, muab kev tiv thaiv zoo tshaj hauv chloride-nplua nuj media.
6. Lub luag haujlwm ntawm molybdenum ua haujlwm li cas hauv Hastelloy alloys?
Molybdenum yog qhov tseem ceeb rau:
Kev tiv thaiv rautxo cov kua qaub
Kev tiv thaiv tawm tsamlocalized corrosion
Txhim kho kev ua haujlwm hauv siab -chloride ib puag ncig
Cov ntsiab lus Mo siab dua feem ntau txhais tau tias ua tau zoo dua hauvhnyav chemical txheej txheem.
7. Puas yog Hastelloy tiv taus kev ntxhov siab corrosion tawg (SCC)?
Yog lawm. Cov qib Hastelloy feem ntau nthuav tawmKev tiv thaiv zoo heev rau chloride-induced stress corrosion cracking, ua rau lawv zoo tagnrho rau:
Thaum tshav kub kub exchangers
Offshore thiab marine systems
Tshuaj reactors
8. Hastelloy qib twg yuav tsum raug xaiv rau qhov chaw sib xyaw lossis tsis paub txog tshuaj lom neeg?
Thaum qhov chaw corrosion yog complex lossis tsis meej,Hastelloy C-276 los yog C-22feem ntau pom zoo.
Cov qib no muab covwidest corrosion kuj ntau yamthiab feem ntau suav hais tias "kev xaiv nyab xeeb" alloys hauv engineering tsim.
9. Hastelloy ua li cas ntawm qhov kub thiab txias?
Qee qib Hastelloy tuav lub zog thiab oxidation tsis kam ntawm qhov kub siab:
Hastelloy Xyog optimized rausiab -kub cov qauv sivxws li gas turbines thiab furnaces.
Corrosion-cov qib tsom (C-series) kuj tseem khaws cov khoom zoo ntawm qhov kub nruab nrab.
10. Puas yog Hastelloy nyuaj rau kev tsim los yog vuam?
Txawm hais tias nws cov ntsiab lus siab alloy, Hastelloy muaj:
Weldability zoo (GTAW, GMAW feem ntau siv)
Kub thiab txias ua haujlwm zoo nrog cov txheej txheem kom raug
Tsawg carbon thiab tswj chemistry pab txo qhov kev pheej hmoo ntawmintergranular corrosion tom qab vuam.
11. Vim li cas Hastelloy thiaj li kim dua lwm yam alloys?
Hastelloy raug nqi ntau dua vim:
High nickel thiab molybdenum cov ntsiab lus
Complex melting thiab ua
Superior kev ua tau zoo nyob rau hauv huab ib puag ncig
Txawm li cas los xij, nws feem ntau muabqis dua tag nrho cov nqi ntawm lub neejlos ntawm kev siv lub neej ntev dua thiab txo kev saib xyuas.
12. Leej twg yog tus tsim Hastelloy?
Hastelloy alloys yog Ameslikas tsim thiab ua lag luam los ntawm Haynes International thiab tam sim no dav teev nyob rau hauvASTM / ASME / UNS / EN cov qauv.
