X65MS + Incoloy 825 Bimetal Metallurgical Clad Pipe | Sour Service CRA Lined Pipe rau H₂S & CO₂ Ib puag ncig - Womic Steel

Kev Piav Qhia Luv:

Cov Yeeb Nkab Sab Nraud (Cov Hlau Tom Qab):API 5L X65MS (PSL2) - qib kev pabcuam qaub, qis carbon, qis sulfur, tswj qhov nyuaj, tiv taus SSC

Sab Hauv (CRA Cladding):Incoloy 825 (UNS N08825) - nickel-hlau-chromium alloy nrog molybdenum, tooj liab, titanium; zoo heev tsis kam rau H₂S, CO₂, chlorides, thiab txo cov kua qaub

Qhov Loj Ntau:OD 219mm – 1016mm (8″ – 40″); Cov hlau phab ntsa tuab 10mm – 30mm; Cladding tuab 2.0mm – 3.5mm; Ib qho ntev txog li 18m (kev cai 24m muaj)

Txheej Txheem Tsim Khoom:Kev sib txuas kub dov + JCOE tsim - kev sib txuas hlau sib txuas interface shear zog ≥200 MPa; weld overlay ntawm seam

Cov Qauv & Cov Ntawv Pov Thawj:API SPEC 5LD (CRA Clad Steel Pipe), DNV-OS-F101, NACE MR0175 / ISO 15156 (SSC/HIC ua raws li), ISO 13623. Daim Ntawv Pov Thawj Zeb EN 10204 Hom 3.1/3.2. Kev tshuaj xyuas los ntawm sab nraud (SGS, BV, DNV, TÜV, ABS, LR) muaj.

Cov ntawv thov:Cov kav dej roj ntub dej, cov tshuab sau cov roj H₂S siab, cov qhov txhaj roj kua qaub (cov kab ntws saum npoo av), cov kab pub cov nroj tsuag Claus sulfur, cov dej pov tseg CO₂−H₂S siab.

Womic Steelmuab cov yeeb nkab X65MS + Incoloy 825 uas tau sib txuas ua ke los ntawm hlau - qhov kev daws teeb meem uas tau ua pov thawj rau kev pabcuam qaub ncaug hnyav. Cov hlau thaub qab ua tau raws li NACE MR0175 qhov nyuaj ≤248 HV; Incoloy 825 cladding tiv taus SSC, HIC, thiab kev xeb H₂S / CO₂ / Cl⁻ dav dav. Muaj cov ntaub ntawv sau tseg tag nrho thiab kev tshuaj xyuas sab nraud npaj tau.

Xa email rau peb Cov Lus Qhia Txog Khoom

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

1. Txheej txheem cej luam - Vim li cas X65MS + Incoloy 825 rau Kev Pabcuam Qab Zib

Cov pa roj qaub ntub - muaj hydrogen sulfide (H₂S), carbon dioxide (CO₂), thiab feem ntau yog chlorides - yog ib qho chaw muaj kev kub ntxhov tshaj plaws rau cov kav dej carbon steel. Cov hlau X65 txheem tsis ua haujlwm sai vim yogkev tawg ntawm kev ntxhov siab sulfide (SSC)thiabKev tawg ntawm hydrogen (HIC).

X65MS + Incoloy 825 bimetal clad yeeb nkabyog tsim tshwj xeeb rau cov xwm txheej zoo li no:

● Cov hlau sab nraud X65MSyog ib qho kev hloov kho tshiab ntawm X65 uas muaj cov pa roj carbon tsawg (≤0.10%), cov sulfur tsawg (≤0.002%), thiab kev tswj hwm qhov nyuaj (≤248 HV) los tiv taus SSC thiab HIC raws li NACE MR0175 / ISO 15156 xav tau.

●Sab Hauv Incoloy 825 cladding (UNS N08825)yog ib qho hlau nickel uas muaj 38-46% Ni, 19-23% Cr, 2.5-3.5% Mo, ntxiv rau tooj liab thiab titanium. Nws tiv taus H₂S, CO₂, cov chlorides siab, cov sulfur hauv paus, thiab cov organic acids thoob plaws ntau pH thiab qhov kub thiab txias.

Ob txheej no sib txuas tas mus li los ntawm kev sib txuas hlau (kev sib txuas kub + kev tsim JCOE). Tsis zoo li cov yeeb nkab uas muaj cov khoom siv kho tshuab, muajtsis muaj kev pheej hmoo ntawm liner collapse, wrinkling, lossis crevice corrosion ntawm qhov interface.

Qhov kev sib xyaw ua ke no yog tus qauv kev lag luam raukev sib sau ua ke ntawm cov roj qaub hauv hiav txwv,Cov kab dej ntws ntawm cov pa roj acid (AGI),Cov kab pub zaub ntawm Claus, thiabcov qhov dej pov tseg siab.

2. Cov Nta Tseem Ceeb & Cov Txiaj Ntsig

Feature	Kev Pab
X65MS kev pabcuam qab zib	Ua raws li NACE MR0175 - qhov nyuaj ≤248 HV, SSC/HIC tiv taus
Incoloy 825 cladding	Tiv taus H₂S, CO₂, chlorides, sulfur, organic acids - PREN 30 35
Kev sib txuas ua ke tag nrho	Tsis muaj liner tawg / delamination - shear zog ≥200 MPa
Lub neej ua haujlwm ntev	Feem ntau 25-30 xyoo hauv kev pabcuam roj qaub
Kev txuag nqi	40-60% pheej yig dua li cov yeeb nkab Incoloy 825 lossis Alloy 625
Cov ntaub ntawv tiav	EN 10204 3.1/3.2; Daim ntawv qhia txog kev ua raws li NACE; UT, MT, cov ntaub ntawv kuaj dej

3. Cov Ntaub Ntawv Txuj Ci & Cov Khoom Siv

3.1 Cov Tshuaj Lom Zem (%)

Khoom	X65MS Tom Qab (siab tshaj plaws)	Incoloy 825 Cladding (ib txwm)
Cov pa roj carbon (C)	0.10	≤0.05
Silicon (Si)	0.45	≤0.50
Manganese (Mn)	1.35	≤1.00
Phosphorus (P)	0.020	≤0.030
Sulfur (S)	0.002	≤0.015
Chromium (Cr)	0.30	19.5 – 23.5
Nickel (Ni)	0.30	38.0 – 46.0
Molybdenum (Mo)	0.15	2.5 – 3.5
Tooj liab (Cu)	0.20	1.5 – 3.0
Titanium (Ti)	0.04	0.6 – 1.2
Vanadium (V)	0.08	—
Niobium (Nb)	0.05	—

3.2 Cov Khoom Siv Kho Tshuab

Vaj tse	X65MS thaub qab	Incoloy 825 Cladding
Lub Zog Tawm (min, MPa)	450	240 (annealed)
Lub zog tensile (min, MPa)	535	550
Kev ntev (min,%)	18	30
Qhov nyuaj (siab tshaj plaws, HV10)	248 ib NACE	240
Kev cuam tshuam (Charpy, 0°C, min J)	100 (qhov nruab nrab)	—

3.3 Kev Sib Txuas Lus thiab Kev Ua Raws Cai ntawm Kev Sib Tsoo

Cov Qauv	Qhov Yuav Tsum Tau Ua	Cov Lus Cim
Lub zog txiav	≥200 MPa	API 5LD
Kev ncaj ncees ntawm UT daim ntawv cog lus	Tsis muaj kev sib cais > 50mm	100% luam theej duab
Kev tiv thaiv SSC	Cov hlau thaub qab: NACE TM0177 Txoj Kev A	Tsis muaj kev tawg ntawm 80% SMYS
Kev tiv thaiv HIC	Cov hlau thaub qab: NACE TM0284	CLR ≤15%, CTR ≤5%, CSR ≤2%
Incoloy 825 pitting	PREN = Cr+3.3Mo+16N ≈ 30-35	Tiv taus txog li 150 ° C hauv cov chlorides siab

3.4 Qhov Ntev (Ib txwm muaj)

OD (nti/hli)	Qhov hnyav ntawm cov khoom thaub qab (hli)	Qhov hnyav ntawm daim ntaub thaiv (hli)	Qhov Ntev Tshaj Plaws (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

Kev cai loj muaj nyob rau ntawm qhov kev thov.

4. Cov Txheej Txheem Tsim Khoom - Kev Sib Txuas Kub Kub + JCOE

Cov txheej txheem tsim khoom rau X65MS + Incoloy 825 clad yeeb nkab nruj me ntsis ua raws li kev lees paub zoo ntawm kev pabcuam qaub:

●Kev xaiv khoom siv thiab kev txheeb xyuas– Phaj X65MS thiab phaj Incoloy 825 yog los ntawm cov chaw tsim khoom uas tau pom zoo. Cov tshuaj lom neeg thiab qhov nyuaj ntawm OES tau raug txheeb xyuas.

● Kev npaj nto- Ob lub phaj raug ntxuav thiab sib tsoo kom tshem tawm cov nplai thiab oxide.

● Kev sib sau ua ke ntawm lub tshuab nqus tsev- Cov phaj raug teeb tsa (Incoloy 825 sab hauv), cov npoo kaw hauv qab lub tshuab nqus tsev (≤10 Pa) kom tiv thaiv kev oxidation thaum lub sijhawm cua sov.

● Kub dov– Pawg khoom kub txog 1180-1250°C, dov ntawm qhov piv txo qis siab (≥5:1). Kev sib txuas ntawm cov hlau los ntawm kev sib kis atomic.

● Kev tshuaj xyuas phaj clad- 100% kev ntsuas ultrasonic rau kev sib txuas ruaj khov.

● Kev tsim JCOE- Phaj clad yog ntug-milled nrog cov profile stepped, tom qab ntawd tsim rau hauv cov yeeb nkab qhib ntawm JCO presses.

● Kev vuam seam ntev- Sab hauv vuam hla nrog Incoloy 625 filler; sab nraud hla nrog cov hlau carbon tsawg filler. Cov txheej txheem vuam tsim nyog rau NACE/API 5LD.

● Kev sib txuas ntawm cov hlau (xaiv tau)- Sab hauv weld seam yuav raug overlaid nrog Incoloy 625 rau kev txhim kho corrosion tiv thaiv.

● Kev kho cua sov- Kev txo kev ntxhov siab (PWHT yog tias xav tau los ntawm cov cai tsim; txwv tsis pub tsis muaj kev kho cua sov kom tswj tau cov hlau thaub qab cov khoom pabcuam qaub.

● NDT & kev kuaj xyuas– Saib Ntu 5.

● Xaus tiav- Cov npoo kawg + roj tiv thaiv xeb + lub hau yas.

5. Kev Tswj Xyuas Zoo & Kev Ntsuas - Kev Pabcuam Zoo

X65MS + Incoloy 825 clad yeeb nkab raug kuaj xyuas kom zoo kom ntseeg tau tias muaj kev pabcuam zoo.

Kev Ntsuas	Txoj Kev / Tus Qauv	Scope	Kev lees txais
Chemistry & hardness (rov qab)	OES + HV10	Txhua lub cua sov	X65MS qhov tshwj xeeb; qhov nyuaj ≤248 HV
Hardness (cladding)	HV10	Txhua pawg	≤240 HV
Bond UT	Tag nrho lub cev, shear & longitudinal waves	100%	Tsis muaj kev sib cais > 50 hli; tag nrho <2%
Weld seam UT	Cov txheej txheem phased tsis siv neeg	100%	API 5LD / DNV F101
Vuam MT / PT	Cov khoom sib nqus / cov xim nkag mus	Weld pib-nres, tag nrho ntev	Tsis muaj cov cim qhia linear
Kev xeem tensile & khoov	Transverse weld + bond shear	Ib pawg (≤50 kav dej)	Kev ua tsis tiav sab nraud ntawm kev sib txuas / kev sib txuas
Kev cuam tshuam Charpy (rov qab)	-20°C los yog -40°C	Ib qho cua sov	≥100 J nruab nrab
Kev xeem SSC (kev txhawb nqa)	NACE TM0177 Txoj Kev A (tensile)	Ib qho cua sov / ib qhov project	Tsis muaj kev tawg ntawm 80% SMYS
Kev xeem HIC (rov qab)	NACE TM0284	Ib qho cua sov / ib qhov project	CLR ≤15%, CTR ≤5%, CSR ≤2%
Kev sim hydrostatic	1.5 × tsim siab	Txhua lub yeeb nkab	Tsis muaj qhov xau
Dimensional & visual	Laser / caliper / pom	100%	OD, WT, ntev, bevel

Kev kuaj ntxiv raws li qhov thov:

● Kev tiv thaiv pitting (CPT / CCT) rau Incoloy 825

● Kev xeb intergranular (ASTM A262) rau kev vuam overlay

● Cov ntsiab lus Ferrite (rau cov hlau vuam)

6. Cov Ntawv Thov thiab Kev Paub Txog Project

6.1 Kev Sau Cov Roj Av High-H₂S Hauv Hiav Txwv

Qhov Chaw:Sichuan Basin, Suav teb (H₂S 8-15%, CO₂ 5-8%, chlorides nruab nrab)
Cov yeeb nkab qhia:X65MS + Incoloy 825, OD 323.9mm, thaub qab WT 14.3mm, cladding 2.5mm
Lub hom phiaj ntawm lub neej ua haujlwm:30 xyoo. Muab 47 km rau NOC loj. Txij li xyoo 2019 - tsis muaj kev puas tsuaj los ntawm xeb.

6.2 Cov Kab Ntsig Acid Gas Injection (AGI)

Qhov Chaw:Middle East offshore (H₂S + CO₂ + cov chlorides siab)
Kev Sib Tw:Cov dej condensed theem corrosive heev.
Kev daws teeb meem:X65MS + Incoloy 825 clad yeeb nkab, OD 406.4mm, cladding 3.0mm.
Qhov Tshwm Sim:Tau teeb tsa ua txoj kab ntws sab saud mus rau lub qhov dej; dhau qhov kev tsim nyog NACE TM0177 thiab TM0284.

6.3 Kab Pub Khoom Noj Rau Claus Plant (Kev Pabcuam Elemental Sulfur)

Qhov Chaw:Gulf Coast, Tebchaws Meskas lub chaw ua roj refinery
Teeb meem:Cov kua sulfur + cov tshuaj HCl ua rau muaj kev tawm tsam sai rau cov hlau carbon.
Kev daws teeb meem:X65MS + Incoloy 825 clad yeeb nkab (12″ OD, 2.8mm cladding).
Qhov Tshwm Sim:8 xyoo nyob rau hauv kev pabcuam tsis muaj ib qho liner lossis backing steel degradation.

7. Vim li cas ho xaiv Womic Steel rau Sour Service Clad Pipe?

Vim li cas	Cov ntsiab lus
Tshwj xeeb hauv cov ntaub ntawv qaub	Muaj kev paub dhau los hauv kev nrhiav cov phaj X65MS uas tsis muaj zog thiab Incoloy 825
Kev txawj ntse hauv NACE	Pab pawg kws tshaj lij tuaj yeem npaj cov ntaub ntawv ua raws li NACE tag nrho
Kev taug qab tag nrho	Los ntawm cov lej cua sov ntawm ob txheej mus rau qhov kev sim hydro kawg
Lub sijhawm luv luv	12-16 lub lis piam rau cov qhov loj me (rov ua dua 10-12 lub lis piam)
Kev pom zoo los ntawm sab nraud thoob ntiaj teb	Ua haujlwm nrog DNV, BV, TÜV, SGS rau kev tshuaj xyuas cov neeg ua tim khawv thiab daim ntawv pov thawj 3.2
Kev sib tw nqi	Tsawg dua 40-60% dua li cov yeeb nkab Alloy 825 lossis Inconel 625

8. Cov Lus Nug Feem Ntau (FAQ)

Q1: Qhov txawv ntawm X65 thiab X65MS yog dab tsi?
A: X65MS yog qhov kev hloov kho "qaub" ntawm X65. Nws muaj cov pa roj carbon tsawg dua (≤0.10%), cov leej faj tsawg heev (≤0.002%), kev tswj hwm qhov nyuaj dua (≤248 HV), thiab kev kuaj SSC/HIC uas yuav tsum tau ua raws li NACE MR0175. Tus qauv X65 tsis haum rau H₂S ntub.

Q2: Vim li cas ho siv Incoloy 825 es tsis txhob siv 316L lossis duplex rau kev pabcuam qaub?
A: Incoloy 825 muaj nickel siab (38-46%), uas muab kev tiv thaiv zoo rau chloride-induced SCC thiab SSC. Nws kuj tiv taus kev txo cov kua qaub (piv txwv li, HCl) thiab cov tshuaj sulfur - cov xwm txheej uas 316L thiab duplex yuav tsis ua haujlwm. Rau kev pabcuam qaub heev (siab H₂S + siab chlorides + elemental S), Incoloy 825 feem ntau yog qhov tsawg kawg nkaus CRA txais tau.

Q3: Incoloy 825 cladding puas tuaj yeem welded rau nws tus kheej lossis rau cov hlau carbon?
A: Yog. Incoloy 825 tuaj yeem vuam tau los ntawm GTAW (TIG), GMAW (MIG), thiab SMAW. Rau kev koom ua ke cladding rau cladding, siv cov hlau filler Alloy 82 / 82i (ERNiCr-3) lossis Alloy 625 (ERNiCrMo-3). Rau kev koom ua ke cladding rau carbon steel (piv txwv li, weld overlay), siv ib txheej nruab nrab ntawm Alloy 309L lossis 625 kom tsis txhob dilution thiab tawg.

Q4: Puas yog qhov txuas ntawm cov xov hlau ntev kuj tseem tiv taus kev pabcuam qaub?
A: Yog. Sab hauv yog welded nrog Incoloy 625 filler (ntau dua Ni, Cr, Mo dua 825). Qhov weld overlay no muab kev tiv thaiv corrosion sib npaug lossis zoo dua li 825 cladding. Tag nrho cov weld yog 100% NDT tshuaj xyuas thiab hardness kuaj.

Q5: Cov ntawv pov thawj twg muab rau kev pabcuam qaub ncaug?
A: Peb muab daim ntawv pov thawj EN 10204 Hom 3.1/3.2 uas suav nrog kev tshuaj xyuas cua sov ntawm cov hlau thaub qab, qhov nyuaj, cov ntawv qhia kev xeem SSC thiab HIC (yog tias ua tiav), thiab kev soj ntsuam qhov nyuaj ntawm vuam. Thaum thov, peb muab tsab ntawv ua raws li NACE MR0175.

Q6: Lub sijhawm ua khoom siv rau X65MS + Incoloy 825 clad yeeb nkab yog dab tsi?
A: Thawj qhov kev txiav txim: 14-18 lub lis piam (suav nrog kev yuav khoom siv thiab kev tsim nyog). Cov kev txiav txim rov ua dua: 10-12 lub lis piam. Kev tshuaj xyuas sab nraud yuav ntxiv 1-2 lub lis piam.

Q7: Puas yog Womic Steel muab tau Inconel 625 clad yeeb nkab es tsis txhob Incoloy 825?
A: Yog. Rau cov xwm txheej hnyav dua (kub siab, H₂S siab, chlorides siab), peb muab X65MS + Inconel 625 (UNS N06625) clad yeeb nkab. Inconel 625 muaj zog dua thiab zoo dua pitting tsis kam (PREN >45). Tiv tauj peb rau cov ntaub ntawv sib cais.