Inconel 625 Seamless Yeeb Nkab Yog Dab Tsi?
Inconel 625 (UNS N06625, W.Nr. 2.4856) yog ib qho hlau nickel-chromium-molybdenum uas muaj niobium ntxiv. Cov niobium ua haujlwm nrog molybdenum los ua kom cov hlau sib xyaw ua ke ruaj khov, ua rau nws muaj zog heev yam tsis tas yuav tsum tau kho cua sov ntxiv. Qhov ntawd yog ib qho tseem ceeb - nws txhais tau tias koj tuaj yeem vuam nws thiab tseem tau txais lub zog tag nrho yam tsis tas yuav kho cua sov tom qab vuam ntxiv.
Ib lub yeeb nkab uas tsis muaj qhov txuas (seamless) txhais tau tias tsis muaj qhov txuas txuas raws qhov ntev. Nws yog ua los ntawm kev tho ib lub billet khov kho thiab dov lossis kos nws kom loj. Tsis muaj qhov txuas txuas (weld seam) txhais tau tias tsis muaj qhov tsis muaj zog, tsis muaj kev pheej hmoo ntawm kev xeb ntawm cov yeeb nkab, thiab muaj kev ruaj khov zoo dua. Yog vim li cas cov yeeb nkab uas tsis muaj qhov txuas yog qhov kev xaiv tseem ceeb rau cov ntawv thov tseem ceeb uas tsis muaj kev ua tsis tiav.
Cov yeeb nkab tsis muaj qhov txuas Inconel 625 ua haujlwm tau los ntawm qhov kub thiab txias cryogenic mus txog 982 ° C (1800 ° F). Nws tiv taus pitting, crevice corrosion, thiab chloride stress corrosion cracking - peb yam uas tua cov yeeb nkab stainless hlau hauv kev pabcuam marine thiab tshuaj lom neeg.
Cov Tshuaj Lom Zem
Cov khoom sib xyaw ua ke yog qhov ua rau Inconel 625 ua tau zoo. Nov yog qhov kev faib tawm:
| Khoom | Qhov hnyav% |
| Nickel (Ni) | 58.0% tsawg kawg nkaus (qhov nyiaj tshuav) |
| Chromium (Cr) | 20.0 – 23.0% |
| Molybdenum (Mo) | 8.0 – 10.0% |
| Niobium + Tantalum (Nb + Ta) | 3.15 – 4.15% |
| Hlau (Fe) | 5.0% siab tshaj |
| Manganese (Mn) | 0.50% siab tshaj |
| Silicon (Si) | 0.50% siab tshaj |
| Cov pa roj carbon (C) | 0.10% siab tshaj |
| Cobalt (Co) | 1.0% siab tshaj |
Qhov muaj nickel ntau (58%+) yog qhov ua rau nws tsis muaj zog tiv thaiv kev tawg ntawm chloride kev ntxhov siab corrosion. Cov molybdenum (8-10%) muab kev tiv thaiv zoo heev rau pitting thiab crevice corrosion hauv dej hiav txwv thiab cov xov xwm uas muaj chloride. Cov niobium (3.15-4.15%) muab kev txhawb zog rau cov khoom khov.
Cov Khoom Siv Kho Tshuab
Hauv qhov xwm txheej annealed, Inconel 625 seamless yeeb nkab xa cov khoom siv kho tshuab hauv qab no:
| Vaj tse | Tus nqi |
| Lub Zog Tensile (Qhov Kawg) | ≥827 MPa (120 ksi) |
| Lub Zog Tawm (0.2% offset) | ≥414 MPa (60 ksi) |
| Kev ntev (hauv 2 ″) | ≥30% |
| Qhov nyuaj | ≤287 HB |
| Qhov Ceev | 8.44 g/cm³ |
| Qhov Kub Yaj | 1290 – 1350°C |
Qhov no txhais li cas hauv kev xyaum:Inconel 625 muaj zog txaus rau cov kav dej siab thiab tawv txaus kom tiv taus kev cuam tshuam thiab kev co. Qhov ntev tsawg kawg nkaus 30% txhais tau tias nws tuaj yeem khoov thiab tsim tau yam tsis tawg.
Thaum kub siab, Inconel 625 tswj tau lub zog siv tau txog li 982 ° C (1800 ° F). Nws kuj tseem tuav tau zoo ntawm qhov kub cryogenic - mus txog -196 ° C - yam tsis ua brittle, yog vim li cas koj thiaj pom nws hauv LNG thiab cov kua nitrogen.
Kev Tiv Thaiv Kev Xeb - Qhov Chaw Uas Nws Ci Ntxim Siab Tiag Tiag
Qhov no yog qhov laj thawj tseem ceeb uas tib neeg them tus nqi siab rau Inconel 625. Nws tswj hwm cov chaw uas ua rau 316L stainless hlau puas tsuaj hauv ntau lub hlis.
Cov dej hiav txwv thiab cov chaw nyob hauv marine:Inconel 625 yuav luag tsis muaj zog tiv thaiv kev xeb ntawm dej hiav txwv. Nws tiv taus kev xeb ntawm qhov pitting, kev xeb ntawm qhov tawg, thiab kev ua kom cov khoom siv biofouling tsis zoo. Yog vim li ntawd koj thiaj pom nws hauv cov kav dej txias hauv dej hiav txwv, cov tshuab dej tua hluav taws, cov kav dej ballast, thiab cov khoom siv tsim khoom hauv qab dej hiav txwv.
Kev tawg ntawm chloride kev ntxhov siab corrosion:Qhov no yog qhov tua tau rau 304 thiab 316 stainless hlau hauv kev pabcuam marine thiab tshuaj lom neeg. Inconel 625 tsis muaj zog vim nws muaj cov nickel ntau.
Kev tsis kam kua qaub:Inconel 625 kov tau cov kua qaub sulfuric, hydrochloric acid, phosphoric acid, cov kua qaub sib xyaw, chlorine, cov kuab tshuaj chlorinated, fluorides, thiab cov alkalis muaj zog. Hauv cov pa hydrofluoric acid, qhov corrosion ntawm 316L stainless hlau tuaj yeem siab dua Inconel 625 li ntawm 65 npaug.
Kev tiv thaiv pitting:Tus lej PREN (Pitting Resistance Equivalent Number) ntawm Inconel 625 siab dua 316L. Hauv 10% FeCl₃ kua ntawm 65 ° C, 316L ua rau muaj qhov hnyav thaum Inconel 625 tseem tsis raug cuam tshuam.
Kev pab cuam qaub (H₂S):Inconel 625 tau txais kev pom zoo rau kev pabcuam qaub ncaug raws li NACE MR0175 / ISO 15156. Nws yog siv dav hauv kev tsim roj thiab roj av hauv hiav txwv rau cov khoom uas raug rau hydrogen sulfide, carbon dioxide, thiab chlorides.
Cov Ntawv Khoom thiab Cov Qauv
Inconel 625 muaj ntau hom khoom. Womic Steel muab txhua yam ntawm lawv:
Cov Yeeb Nkab Thiab Lub Raj Tsis Muaj Qhov Txuas:ASTM B444 / ASME SB-444, AMS 5581
- OD ntau yam: 6mm - 219mm (tus qauv); txog li 610mm muaj nyob rau ntawm qhov kev thov
- Phab ntsa tuab: 0.5 hli - 20 hli
- Qib: Qib 1 (cov tshuaj annealed, cov noob loj rau creep) thiab Qib 2 (stabilized annealed, cov noob me rau qaug zog)
Cov Yeeb Nkab Welded:ASTM B704, ASTM B705
- Cov kab uas hla loj dua, pheej yig dua rau cov ntawv thov uas tsis tseem ceeb
Phaj thiab Ntawv:ASTM B443 / ASME SB-443, AMS 5599
- Tuab: 0.5 hli - 50 hli
Bar thiab Qws:ASTM B446 / ASME SB-446, AMS 5666
- Txoj kab uas hla: 6mm - 250mm
Cov Khoom Siv Forging:ASTM B564 / ASME SB-564
- Flanges, fittings, valve lub cev, kev cai duab
Cov Khoom Siv Hlau Thiab Vuam:AWS A5.14 ERNiCrMo-3 (hlau nplaum)
Cov Txheej Txheem Tsim Khoom
Womic Steel tsim cov yeeb nkab Inconel 625 seamless los ntawm cov txheej txheem tswj hwm:
- Yaj:Kev siv lub tshuab nqus tsev (VIM) los yog kev siv lub tshuab nqus tsev rov ua kom cov pa roj tsawg thiab huv si.
- Kev tho qhov:Cov khoom billet khov kho raug cua sov thiab tho qhov kom ua lub plhaub hollow.
- Kub extrusion los yog dov:Lub plhaub hollow raug txo kom me me.
- Kev kos duab txias:Kev kos duab txias ntau zaus nrog kev annealing nruab nrab ua tiav qhov ntev kawg thiab kev kam rau siab. Kev kos duab txias txhim kho qhov tiav ntawm qhov chaw thiab qhov tseeb ntawm qhov ntev.
- Kev daws teeb meem annealing:Kev kho cua sov kawg ntawm 980-1040 ° C ua raws li kev txias sai rov qab kho qhov corrosion tsis kam thiab ductility.
- Kev kho thiab passivation:Tshem tawm cov nplai thiab oxide, tawm hauv qhov chaw huv si.
- NDT thiab kev kuaj xyuas:100% kev kuaj hydrostatic, kev kuaj ultrasonic, kev kuaj eddy tam sim no, thiab kev tshuaj xyuas qhov ntev.
Rau cov yeeb nkab welded, cov txheej txheem siv cov kab txaij txias uas tsim thiab welded siv TIG lossis plasma welding, ua raws li kev daws teeb meem tag nrho thiab NDT ntawm cov kab sib txuas.
Kev Vuam thiab Kev Tsim Khoom
Inconel 625 paub txog kev vuam zoo heev. Koj tuaj yeem vuam nws siv TIG (GTAW), MIG (GMAW), stick welding (SMAW), laser welding, lossis electron beam welding.
Cov hlau nplaum uas pom zoo:AWS A5.14 ERNiCrMo-3 (Inconel 625 filler)
Cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov:
- Tsis tas yuav tsum tau kho cua sov tom qab vuam - cov hlau tau txais nws lub zog los ntawm kev ua kom cov khoom khov kho, tsis yog los ntawm kev ua kom cov nag lossis daus khov kho.
- Ua ntej vuam, ntxuav qhov chaw vuam kom huv si - tsis txhob muaj roj, roj, lossis oxide.
- Tswj cov cua sov kom tsis txhob kub dhau.
- Khaws qhov kub ntawm qhov chaw hla mus rau hauv qab 150 ° C.
- Siv cov roj argon ntshiab los yog argon-helium tiv thaiv.
Rau kev vuam hlau sib txawv (Inconel 625 rau hlau tsis xeb lossis rau hlau carbon), ERNiCrMo-3 kuj yog qhov kev pom zoo kom siv.
Cov Ntawv Thov — Qhov Chaw Koj Nrhiav Tau Inconel 625 Seamless Pipe
Inconel 625 seamless yeeb nkab siv tau thoob plaws ntau yam lag luam:
Kev Lag Luam Roj thiab Roj Av
- Cov yeeb nkab downhole thiab casing
- Cov kab dej ntws hauv qab dej thiab cov kab sib txuas
- Cov kab txhaj tshuaj
- Cov khoom ntawm lub qhov dej
- Cov kav dej roj qaub (NACE MR0175 ua raws li)
- Cov teeb ci ntsa iab
- Cov kav dej hauv hiav txwv thiab ntug dej hiav txwv
Kev Tsim Kho Marine
- Cov tshuab cua txias dej hiav txwv
- Cov tshuab dej tua hluav taws
- Cov kav dej ballast
- Cov khoom siv sib txuas hauv qab dej hiav txwv thiab cov tsev cable
- Cov tshuab tso pa tawm ntawm nkoj
- Cov raj xa cua sov ntawm cov nroj tsuag Desalination
Kev Ua Tshuaj Lom Zem
- Kev thauj mus los ntawm sulfuric acid, hydrochloric acid, phosphoric acid
- Cov khoom sab hauv ntawm lub reactor
- Cov raj xa cua sov (sab corrosive media)
- Cov txheej txheem desulfurization roj flue (FGD)
- Cov khoom siv tswj kev ua qias tuaj
Kev tsav dav hlau
- Cov kav dej tso pa tawm ntawm lub cav dav hlau
- Cov kav dej roj hydraulic
- Cov kav dej cua
- Cov txheej txheem deicing nacelle
- Cov kab ntawm lub cav foob pob hluav taws
Kev Tsim Hluav Taws Xob
- Cov kav dej pabcuam ntawm cov kob nuclear
- Kev rov qab siv cov pa roj kub kub uas pov tseg
- Cov raj xa dej kub
Lwm Cov Lag Luam
- Cov kav dej ua tshuaj (kev ntxuav tau thiab tiv taus xeb)
- Cov kav dej ua cov tshuaj dawb rau cov khoom siv pulp thiab ntawv
- Cov kav dej xa hydrogen
Inconel 625 vs 316L Stainless Steel — Kev Sib Piv Sai
Nov yog ib lo lus nug uas peb tau txais txhua lub sijhawm. Nov yog cov lus luv luv:
| Aspect | Inconel 625 | 316L Stainless hlau |
| PREN (kev tiv thaiv pitting) | ≥45 | 24-26 |
| Kub siab tshaj plaws rau kev pabcuam | 982°C (1800°F) | ~400°C |
| Chloride SCC tsis kam | Yuav luag tsis muaj zog tiv thaiv kab mob | Muaj kev cuam tshuam |
| Kev xeb ntawm dej hiav txwv | Zoo heev | Phem (ua rau mob sai sai) |
| Lub zog tawm los (annealed) | ≥414 MPa | ~170 MPa |
| Tus nqi sib piv | Siab | Qis |
| Kev vuam tau | Zoo heev, tsis muaj PWHT | Zoo, tej zaum yuav xav tau PWHT |
Hauv cov chaw muaj hydrofluoric acid, 316L tuaj yeem xeb sai dua li Inconel 625 li ntawm 65 npaug. Hauv dej hiav txwv, 316L yuav lwj hauv ob peb lub hlis. Inconel 625 kav ntev txog ntau xyoo.
Inconel 625 Tus Nqi thiab Cov Yam Ntxim Saib Xyuas Tus Nqi
Txij li xyoo 2025, tus nqi Inconel 625 feem ntau yog txij li$45 txog $85 ib kg, nyob ntawm seb cov khoom muaj pes tsawg, daim ntawv pov thawj, thiab tus neeg muag khoom:
| Daim Ntawv Khoom | Tus Nqi Kwv Yees Li Cas (USD/kg) |
| Ntawv / Phaj | $45 – 65 |
| Lub Rooj Sib Tw | $50 – 70 |
| Cov Yeeb Nkab / Raj Seamless | $55 – 75 |
| Hlau | $60 – 85 |
Dab tsi cuam tshuam rau tus nqi tshaj plaws:
- Cov ntsiab lus ntawm nickel (~ 58%) — tus nqi taug qab LME nickel kev lag luam
- Txoj kev ua tiav - forged, kub-dov, lossis txias-dov
- Cov kev cai ntawm daim ntawv pov thawj — ASTM, ASME, NACE, lossis tus nqi ntxiv rau kev tshuaj xyuas sab nraud
- Kev txiav txim kom muaj nuj nqis - kev txiav txim ntau yuav txo tus nqi ib kg
- Keeb Kwm — Cov ntaub ntawv hauv Tebchaws Meskas/EU feem ntau kim dua li cov khoom ua hauv Suav teb
Cov Lus Nug Feem Ntau
Q: Qhov txawv ntawm Inconel 625 seamless yeeb nkab thiab welded yeeb nkab yog dab tsi?
A: Cov yeeb nkab tsis muaj qhov txuas ntev. Nws yog ua los ntawm kev tho ib lub billet khov kho thiab dov lossis kos kom loj. Cov yeeb nkab vuam yog tsim los ntawm daim kab xev thiab vuam raws cov leeg. Cov yeeb nkab tsis muaj qhov txuas yog muaj zog dua, tsis muaj kev pheej hmoo ntawm kev xeb ntawm cov leeg, thiab nyiam siv rau kev siv siab thiab kev siv tseem ceeb.
Q: Inconel 625 puas yog hlau nplaum?
A: Tsis yog. Inconel 625 tsis yog hlau nplaum vim nws cov qauv siv lead ua austenitic (FCC).
Q: Inconel 625 puas xav tau kev kho cua sov tom qab vuam?
A: Tsis yog. Inconel 625 tau txais kev txhawb zog los ntawm kev txhawb zog cov khoom khov (molybdenum thiab niobium). Nws tsis xav tau kev kho cua sov los ntawm kev ua kom tawv, yog li tsis tas yuav kho cua sov tom qab vuam.
Q: Yuav tsum siv cov hlau vuam twg rau Inconel 625?
A: AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) yog qhov kev xaiv txheem. Nws kuj tseem tsim nyog rau kev vuam Inconel 625 rau cov hlau tsis xeb thiab rau lwm cov hlau nickel.
Q: Inconel 625 puas tau pom zoo rau kev pabcuam qaub (H₂S ib puag ncig)?
A: Yog. Inconel 625 tau txais kev pom zoo raws li NACE MR0175 / ISO 15156 rau cov ntawv thov kev pabcuam qaub. Nws yuav tsum tau muab rau hauv qhov xwm txheej annealed.
Q: Qhov kub siab tshaj plaws rau Inconel 625 ua haujlwm yog dab tsi?
A: Txog li 982 ° C (1800 ° F) rau kev pabcuam tas mus li.
Q: Inconel 625 puas siv tau rau hauv cov ntawv thov cryogenic?
A: Yog. Inconel 625 tswj tau qhov tawv txog li -196 ° C, ua rau nws tsim nyog rau LNG thiab cov kua nitrogen.
Q: PREN ntawm Inconel 625 yog dab tsi?
A: Tus lej PREN (Pitting Resistance Equivalent Number) ntawm Inconel 625 yog kwv yees li 45, siab dua 316L (24-26).
Q: Inconel 625 puas tuaj yeem muab nrog daim ntawv pov thawj NACE MR0175?
A: Yog. Womic Steel tuaj yeem muab Inconel 625 seamless yeeb nkab nrog NACE MR0175 / ISO 15156 ua raws li tag nrho thiab EN 10204 Hom 3.2 daim ntawv pov thawj.
Q: Lub sijhawm ua khoom siv rau Inconel 625 seamless yeeb nkab yog dab tsi?
A: Rau cov qhov loj thiab qib txheem, kwv yees li 4-6 lub lis piam. Rau cov qhov loj lossis cov ntawv pov thawj tshwj xeeb, 6-8 lub lis piam.
Tiv tauj Womic Steel
Yog xav paub ntxiv, xav tau kev pab txog kev siv tshuab, lossis xav tau tus nqi rau koj cov yeeb nkab Inconel 625 uas tsis muaj seamless - txawm tias yog yeeb nkab, raj, bar, phaj, forgings, lossis cov khoom siv tshwj xeeb - thov hu rau peb:
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Womic Steel - Koj tus khub txhim khu kev qha rau Inconel 625 seamless yeeb nkab thiab cov hlau nickel ua tau zoo rau kev siv hauv marine, roj & roj av, tshuaj lom neeg, thiab kev siv hauv aerospace.
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