Chitoliro cha X65MS+Incoloy 825 Bimetal Metallurgical Clad | Chitoliro Chopanda Mphamvu cha CRA cha Malo Ozungulira a H₂S & CO₂ – Womic Steel

Kufotokozera Kwachidule:

Chitoliro Chakunja (Chitsulo Chothandizira):API 5L X65MS (PSL2) - mtundu wa ntchito wowawasa, mpweya wochepa, sulfure wochepa, kuuma kolamulidwa, kukana SSC

Chivundikiro chamkati (CRA Cladding):Incoloy 825 (UNS N08825) – nickel iron chromium alloy yokhala ndi molybdenum, copper, titanium; kukana bwino kwambiri ku H₂S, CO₂, chlorides, ndi kuchepetsa ma acid.

Kukula kwa Kukula:OD 219mm – 1016mm (8″ – 40″); Chitsulo chothandizira khoma makulidwe 10mm – 30mm; Kukhuthala kwa cladding 2.0mm – 3.5mm; Kutalika kumodzi mpaka 18m (24m yovomerezeka ikupezeka)

Njira Yopangira:Kulumikiza kwa mpukutu wotentha + kupanga JCOE - mphamvu yochepetsera mawonekedwe a bond yachitsulo ≥200 MPa; kuphimba kwa weld pa msoko

Miyezo ndi Ziphaso:API SPEC 5LD (CRA Clad Steel Pipe), DNV-OS F101, NACE MR0175 / ISO 15156 (yogwirizana ndi SSC/HIC), ISO 13623. Chiphaso cha Mill EN 10204 Mtundu 3.1/3.2. Kuyang'ana kwa chipani chachitatu (SGS, BV, DNV, TÜV, ABS, LR) kulipo.

Mapulogalamu:Mapaipi a mpweya wonyowa, makina osonkhanitsira mpweya wa H₂S wambiri, zitsime zolowetsa mpweya wa asidi (njira zoyendera pamwamba), mizere yodyetsera zomera za Claus sulfur, malo otayira madzi a CO₂−H₂S okhala ndi mphamvu yokwera.

Chitsulo cha WomicChitoliro chopangidwa ndi zitsulo cha X65MS+Incoloy 825 chili ndi chitoliro cholimba chachitsulo - njira yotsimikizika yogwiritsira ntchito bwino kwambiri. Chitsulo chothandizira chimakwaniritsa kuuma kwa NACE MR0175 ≤248 HV; Chitoliro cha Incoloy 825 chimalimbana ndi SSC, HIC, ndi dzimbiri la H₂S/CO₂/Cl⁻. Zolembedwa zonse ndipo kuyang'aniridwa ndi anthu ena kwakonzeka.

Tumizani imelo kwa ife Zofotokozera Zamalonda

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

1. Chidule - Chifukwa Chake X65MS + Incoloy 825 Yautumiki Waukali

Mpweya wonyowa wowawasa - wokhala ndi hydrogen sulfide (H₂S), carbon dioxide (CO₂), ndipo nthawi zambiri ma chloride - ndi amodzi mwa malo omwe mapaipi achitsulo cha carbon amawonongeka kwambiri. Chitsulo chokhazikika cha X65 chimalephera kugwira ntchito mwachangu chifukwa chakuphwanya mphamvu ya sulfide (SSC)ndikusweka kwa haidrojeni (HIC).

Chitoliro cha X65MS+Incoloy 825 bimetal cladyapangidwira makamaka mikhalidwe yotereyi:

● Chitsulo chothandizira chakunja cha X65MSNdi mtundu wa X65 wosinthidwa ndi sour-service. Uli ndi mpweya wochepa (≤0.10%), sulfure wochepa (≤0.002%), komanso kuuma kolamulidwa (≤248 HV) kuti ukhale wolimbana ndi SSC ndi HIC monga momwe NACE MR0175 / ISO 15156 imafunira.

●Chivundikiro cha Inner Incoloy 825 (UNS N08825)Ndi aloyi yopangidwa ndi nickel yokhala ndi 38-46% Ni, 19-23% Cr, 2.5-3.5% Mo, kuphatikiza mkuwa ndi titaniyamu. Imapirira H₂S, CO₂, ma chloride ambiri, sulfure ya elemental, ndi ma organic acid pa pH ndi kutentha kwakukulu.

Zigawo ziwirizi zimalumikizidwa kosatha ndi chomangira chachitsulo (chomangira chotentha + kupanga JCOE). Mosiyana ndi chitoliro cholumikizidwa ndi makina, palipalibe chiopsezo cha kugwa kwa liner, makwinya, kapena dzimbiri pa malo olumikizirana.

Kuphatikiza kumeneku ndiye muyezo wamakampanikusonkhanitsa gasi wowawasa wa m'nyanja,njira zoyendetsera mpweya wa asidi (AGI),Mizere yodyetsera zomera za Clausndizitsime zotayira madzi zodzaza ndi mphamvu yamagetsi.

2. Zinthu Zofunika & Mapindu

Mbali	Phindu
Chithandizo cha X65MS cha sour service	NACE MR0175 imagwirizana - kuuma ≤248 HV, kukana SSC/HIC
Chivundikiro cha Incoloy 825	Imalimbana ndi H₂S, CO₂, ma chloride, sulfure, ndi ma organic acids – PREN 30 35
Chigwirizano chonse cha zitsulo	Palibe kugwa kwa liner / delamination - mphamvu yodula ≥200 MPa
Moyo wautali wautumiki	Kawirikawiri zaka 25-30 mu ntchito ya gasi wowawasa
Kusunga ndalama	Mtengo wotsika ndi 40-60% kuposa chitoliro cholimba cha Incoloy 825 kapena Alloy 625
Zolemba zonse	EN 10204 3.1/3.2; Lipoti la NACE lotsatira malamulo; UT, MT, zolemba zoyesera zamadzi

3. Deta Yaukadaulo & Zofotokozera Zazinthu

3.1 Kapangidwe ka Mankhwala (%)

Chinthu	Kuthandizira kwa X65MS (kwambiri)	Kuphimba kwa Incoloy 825 (kwachizolowezi)
Kaboni (C)	0.10	≤0.05
Silikoni (Si)	0.45	≤0.50
Manganese (Mn)	1.35	≤1.00
Phosphorus (P)	0.020	≤0.030
Sulfure (S)	0.002	≤0.015
Chromium (Cr)	0.30	19.5 – 23.5
Nikeli (Ni)	0.30	38.0 – 46.0
Molybdenum (Mo)	0.15	2.5 – 3.5
Mkuwa (Cu)	0.20	1.5 – 3.0
Titaniyamu (Ti)	0.04	0.6 – 1.2
Vanadium (V)	0.08	—
Niobium (Nb)	0.05	—

3.2 Katundu wa Makina

Katundu	Kuthandizira kwa X65MS	Kuphimba kwa Incoloy 825
Mphamvu Yotulutsa (min, MPa)	450	240 (yotsekedwa)
Mphamvu Yokoka (min, MPa)	535	550
Kutalika (mphindi, %)	18	30
Kulimba (kwapamwamba, HV10)	248 pa NACE	240
Mphamvu (Charpy, 0°C, mphindi J)	100 (avereji)	—

3.3 Bond Interface & Corrosion Compliance

Chizindikiro	Chofunikira	Zolemba
Mphamvu yometa	≥200 MPa	API 5LD
Umphumphu wa mgwirizano wa UT	Palibe kugawanika >50mm	Kujambula 100%
Kukana kwa SSC	Chitsulo chothandizira: NACE TM0177 Njira A	Palibe kusweka pa 80% SMYS
Kukana kwa HIC	Chitsulo chothandizira: NACE TM0284	CLR ≤15%, CTR ≤5%, CSR ≤2%
Kuyika kwa Incoloy 825	PREN = Cr+3.3Mo+16N ≈ 30-35	Kupirira kutentha mpaka 150°C mu ma chloride ambiri

3.4 Magawo Osiyanasiyana (Ofanana)

OD (inchi/mm)	Kulemera kwa Kumbuyo (mm)	Kulemera kwa cladding (mm)	Kutalika Kwambiri (m)
8″ (219.1)	10.0 – 18.0	2.0 – 2.5	18
10″ (273.1)	10.0 – 20.0	2.0 – 2.5	18
12″ (323.9)	12.0 – 22.0	2.0 – 3.0	18
16″ (406.4)	12.0 – 25.0	2.5 – 3.0	18
20″ (508.0)	12.0 – 28.0	2.5 – 3.0	18
24″ (609.6)	14.0 – 30.0	2.5 – 3.0	18
30″ (762.0)	14.0 – 30.0	3.0 – 3.5	18
40″ (1016.0)	16.0 – 32.0	3.0 – 3.5	18

Kukula kwapadera kulipo ngati mukufuna.

4. Njira Yopangira - Hot Roll Bonding + JCOE

Njira yopangira chitoliro cha X65MS+Incoloy 825 ikutsatira kwambiri chitsimikizo cha mtundu wa ntchito:

●Kusankha ndi kutsimikizira zinthu– Mbale ya X65MS ndi mbale ya Incoloy 825 zimachokera ku mphero zovomerezeka. Mankhwala a OES ndi kuuma kwake zatsimikiziridwa.

● Kukonzekera pamwamba– Ma mbale onse awiri amatsukidwa ndi kuphwanyidwa kuti achotse mamba ndi okosidi.

● Kuyika vacuum cleaner– Ma mbale amaikidwa m'mizere (Incoloy 825 mkati), m'mbali mwake amatsekedwa pansi pa vacuum (≤10 Pa) kuti apewe kukhuthala panthawi yotenthetsera.

● Kugubuduzika kotentha– Stack imatenthedwa kufika pa 1180-1250°C, yozunguliridwa pa chiŵerengero chapamwamba chochepetsera (≥5:1). Chigwirizano cha zitsulo chimapangidwa ndi kufalikira kwa atomiki.

● Kuyang'ana mbale zophimba- Kusanthula kwa 100% kwa ultrasound kuti muwone ngati bond ndi yolimba.

● Kupanga JCOE– Mbale yophimba imaphwanyidwa m'mphepete ndi mawonekedwe otsetsereka, kenako imapangidwa kukhala chitoliro chotseguka kudzera mu makina osindikizira a JCO.

● Kuwotcherera kwa msoko wautali- Njira yolumikizira yamkati yokhala ndi chodzaza cha Incoloy 625; njira yolumikizira yakunja yokhala ndi chodzaza chachitsulo chotsika mpweya. Njira yolumikizira yoyenerera NACE/API 5LD.

● Chophimba cholukidwa (chophimba chosankha)– Msoko wamkati wa weld ukhoza kuphimbidwa ndi Incoloy 625 kuti ukhale wolimbana ndi dzimbiri.

● Kuchiza kutentha- Kuchepetsa kupsinjika (PWHT) ngati pakufunika malinga ndi malamulo opangidwira; apo ayi palibe chithandizo cha kutentha kuti chisunge mawonekedwe a ntchito yachitsulo chowuma.

● NDT ndi mayeso– Onani Gawo 5.

● Malizitsani kumaliza– Mapeto a bevel + mafuta oletsa dzimbiri + zipewa za pulasitiki.

5. Kuwongolera Ubwino ndi Kuyesa - Kuyang'ana Kwambiri pa Utumiki

Chitoliro chophimbidwa cha X65MS+Incoloy 825 chikuyesedwa mwamphamvu kuti chitsimikizire kuti ntchito yake ndi yolimba.

Mayeso	Njira / Muyezo	Chigawo	Kuvomereza
Chemistry & hardness (kuthandiza)	OES + HV10	Kutentha kulikonse	Kuuma kwa X65MS; ≤248 HV
Kulimba (kuphimba)	HV10	Gulu lililonse	≤240 HV
Bond UT	Thupi lonse, kumeta ndi mafunde akutali	100%	Palibe kugawanika >50mm; chiwerengero chonse <2%
Msoko wowotcherera UT	Gulu lokhazikika lokhazikika	100%	API 5LD / DNV F101
Cholukizira MT / PT	Cholowetsa utoto cha maginito / chopaka utoto	Kuyimitsa koyambira ndi kosunthika, kutalika konse	Palibe zizindikiro zolunjika
Mayeso a kukoka ndi kupindika	Kuduladula kwa weld + chomangira cholumikizira	Pa gulu lililonse (≤mapaipi 50)	Kulephera kunja kwa weld / bond
Charpy impact (kuthandiza)	-20°C kapena -40°C	Pa kutentha kulikonse	≥100 J avareji
Mayeso a SSC (kubwerera kumbuyo)	NACE TM0177 Njira A (yokoka)	Pa kutentha kulikonse / pa polojekiti iliyonse	Palibe kusweka pa 80% SMYS
Kuyesa kwa HIC (kubwerera m'mbuyo)	NACE TM0284	Pa kutentha kulikonse / pa polojekiti iliyonse	CLR ≤15%, CTR ≤5%, CSR ≤2%
Mayeso a Hydrostatic	Kupanikizika kwa kapangidwe ka 1.5 ×	Chitoliro chilichonse	Palibe kutayikira
Zooneka ndi maso	Laser / calipers / zowonera	100%	OD, WT, kutalika, bevel

Mayeso ena akafunsidwa:

● Kukana kwa ming'alu (CPT / CCT) ya Incoloy 825

● Kutupa kwa intergranular (ASTM A262) kwa weld overlay

● Kuchuluka kwa ferrite (kwa zitsulo zosungunula)

6. Mapulogalamu Omwe Amagwiritsidwa Ntchito Ndi Zomwe Zikuchitika Pantchito

6.1 Kusonkhanitsa Gasi Wapamwamba Kwambiri wa H₂S Panyanja

Malo:Sichuan Basin, China (H₂S 8-15%, CO₂ 5-8%, ma chloride apakati)
Chitoliro:X65MS+Incoloy 825, OD 323.9mm, kumbuyo kulemera 14.3mm, cladding 2.5mm
Cholinga cha moyo wonse wautumiki:Zaka 30. Yaperekedwa mtunda wa makilomita 47 ku NOC yayikulu. Yakhala ikugwira ntchito kuyambira 2019 - palibe vuto lililonse lokhudzana ndi dzimbiri.

6.2 Mzere Woyendera Mpweya wa Asidi (AGI)

Malo:Kum'mawa kwa Middle East (H₂S + CO₂ + ma chloride ambiri)
Vuto:Madzi oundana amawononga kwambiri.
Yankho:Chitoliro chophimbidwa ndi X65MS+Incoloy 825, OD 406.4mm, chophimba cha 3.0mm.
Zotsatira:Yakhazikitsidwa ngati mzere wolowera kuchokera pamwamba kupita ku chitsime; yadutsa chiyeneretso cha NACE TM0177 ndi TM0284.

6.3 Mzere Wodyetsa Zomera za Claus (Ntchito ya Sulfur Yoyambira)

Malo:Kampani yoyeretsera mafuta ku Gulf Coast, USA
Vuto:Sulfure yamadzimadzi + HCl yocheperako idayambitsa kuukira mwachangu pa chitsulo cha kaboni.
Yankho:Chitoliro chophimbidwa ndi X65MS+Incoloy 825 (12″ OD, 2.8mm cladding).
Zotsatira:Zaka 8 akugwira ntchito popanda kuwonongeka kwa liner kapena backing steel.

7. N’chifukwa Chiyani Muyenera Kusankha Chitsulo cha Womic pa Chitoliro Cholimba cha Utumiki Wopanda Mphamvu?

Chifukwa	Tsatanetsatane
Zapadera mu zinthu zowawasa	Chidziwitso chachikulu pakupeza mbale ya X65MS yolimba kwambiri ndi Incoloy 825
Ukatswiri wa NACE wamkati	Gulu la akatswiri likhoza kukonzekera zikalata zonse zotsatizana ndi malamulo a NACE
Kutsata kwathunthu	Kuchokera ku kuchuluka kwa kutentha kwa zigawo zonse ziwiri mpaka mayeso omaliza a hydro
Nthawi yochepa yotsogolera	Masabata 12-16 a kukula koyenera (bwerezani maoda masabata 10-12)
Kuvomerezedwa ndi chipani chachitatu padziko lonse lapansi	Gwirani ntchito ndi DNV, BV, TÜV, SGS poyang'anira mboni ndi ziphaso 3.2
Mitengo yopikisana	40-60% yocheperako kuposa chitoliro cholimba cha Alloy 825 kapena Inconel 625

8. Mafunso Ofunsidwa Kawirikawiri (FAQ)

Q1: Kodi kusiyana pakati pa X65 ndi X65MS ndi kotani?
A: X65MS ndi mtundu wa "sour service" wa X65. Ili ndi kaboni wochepa (≤0.10%), sulfure wochepa kwambiri (≤0.002%), mphamvu yolimba (≤248 HV), komanso mayeso ofunikira a SSC/HIC pa NACE MR0175. X65 yokhazikika si yoyenera kugwiritsa ntchito H₂S yonyowa.

Q2: N’chifukwa chiyani mugwiritse ntchito Incoloy 825 m’malo mwa 316L kapena duplex popereka chithandizo cha sour?
A: Incoloy 825 ili ndi nickel yambiri (38-46%), yomwe imapereka kukana bwino kwambiri ku SCC ndi SSC zomwe zimayambitsa chloride. Imalimbananso ndi kuchepetsa ma acid (monga HCl) ndi sulfure yoyambira - momwe 316L ndi duplex zidzalepherera. Pa ntchito yovuta kwambiri ya sour (H₂S yokwera + ma chloride okwera + S yoyambira), Incoloy 825 nthawi zambiri imakhala CRA yovomerezeka.

Q3: Kodi chivundikiro cha Incoloy 825 chingalumikizidwe chokha kapena ku chitsulo cha kaboni?
A: Inde. Incoloy 825 imatha kuwotcherera ndi GTAW (TIG), GMAW (MIG), ndi SMAW. Pofuna kulumikiza cladding ku cladding, gwiritsani ntchito filler metal Alloy 82 / 82i (ERNiCr-3) kapena Alloy 625 (ERNiCrMo-3). Pofuna kulumikiza cladding ku carbon steel (monga weld overlay), gwiritsani ntchito gawo lapakati la Alloy 309L kapena 625 kuti mupewe kusungunuka ndi kusweka.

Q4: Kodi chotchingira cha longitudinal seam weld chilinso cholimba?
A: Inde. Cholumikizira chamkati chimalumikizidwa ndi chodzaza cha Incoloy 625 (chapamwamba Ni, Cr, Mo kuposa 825). Chophimba ichi cha weld chimapereka kukana dzimbiri kofanana kapena kwabwinoko kuposa cladding ya 825. Chophimba chonsecho chimawunikidwa 100% NDT ndipo chimayesedwa kuuma.

Q5: Ndi ziphaso ziti zomwe zimaperekedwa pa ntchito ya sour?
A: Timapereka satifiketi ya EN 10204 Type 3.1/3.2 yomwe imaphatikizapo kusanthula kutentha kwa chitsulo, kuuma, malipoti oyesera a SSC ndi HIC (ngati achitika), ndi kafukufuku wa kuuma kwa weld. Tikapempha, timapereka kalata yotsatirira malamulo a NACE MR0175.

Q6: Kodi nthawi yodziwika bwino yoperekera chitoliro cha X65MS+Incoloy 825 ndi yotani?
A: Oda yoyamba: masabata 14-18 (kuphatikizapo kugula zinthu zosakaniza ndi ziyeneretso). Maoda obwerezabwereza: masabata 10-12. Kuyang'aniridwa ndi munthu wina kungawonjezere sabata 1-2.

Q7: Kodi Womic Steel ingapereke chitoliro cha Inconel 625 chophimbidwa m'malo mwa Incoloy 825?
A: Inde. Pa matenda oopsa kwambiri (kutentha kwambiri, H₂S yambiri, ma chloride ambiri), timapereka chitoliro chophimbidwa cha X65MS+Inconel 625 (UNS N06625). Inconel 625 ili ndi mphamvu zambiri komanso kukana bwino kuyika mabowo (PREN >45). Lumikizanani nafe kuti mupeze deta yapadera.