API 5L X65 LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Khoom Qhia Txog Duab Tshwj Xeeb

API 5L X65 LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom

Kev Piav Qhia Luv:

Womic Steel muab cov yeeb nkab hlau API 5L X65 (L450) LSAW zoo rau kev xa roj siab, cov kav dej tob hauv dej hiav txwv, thiab cov ntawv thov kev pabcuam qaub. X65 muaj lub zog tsawg kawg nkaus ntawm 450 MPa (65,300 psi), ua rau kom txo tau qhov tuab ntawm phab ntsa - txog li 25% nyias dua li X52 rau tib qhov ntsuas siab - txo cov nqi khoom siv thiab lub sijhawm vuam hauv thaj teb. Cov txheej txheem LSAW suav nrog JCOE, UOE, thiab cov txheej txheem vuam phaj dov, txhua yam xa cov kab ncaj nrog kev sib txuas zoo dua. Rau cov kab uas hla loj heev lossis cov tuab ntawm phab ntsa hnyav (txog li 50.8 hli rau JCOE / UOE, txog li 70 hli rau phaj dov), Womic siv kev sib xyaw ua ke ntawm phaj dov thiab ntau-pass submerged arc vuam. Sab nraud txoj kab uas hla los ntawm 219mm txog 1,600 hli (8″ - 63″), phab ntsa tuab los ntawm 6.0 hli txog 70 hli (nyob ntawm cov txheej txheem), ntev txog li 24m. Daim ntawv pov thawj zeb, kev sim dej, 100% ultrasonic lossis kev sim phased array, beveled ends, thiab txheej tiv thaiv xeb (3LPE, FBE, 3LPP) muaj. Haum rau cov kab roj siab (txog li 15 MPa), cov kav dej tob hauv dej hiav txwv (txog li 3,000m qhov tob ntawm dej), kev pabcuam qaub (PSL2 nrog HIC/SSC), thiab cov ntawv thov arctic nrog kev sim cuam tshuam qis-kub txog -46 ° C.

LSAW Hlau Yeeb Nkab Loj:Sab Nraud Txoj Kab uas hla: 219mm – 1,600mm (8″ – 63″), Phab Ntsa Thickness: 6.0mm – 70.0mm (JCOE/UOE siab tshaj 50.8mm, phaj dov siab tshaj 70mm), Ntev: 6m – 18m tus qauv, kev cai ntev txog li 24m

Tus Qauv & Qib ntawm LSAW Steel Pipe:API 5L X65 PSL1 / PSL2 (kuj xaiv L450 raws li ISO 3183); kuj muaj nyob rau hauv kev pabcuam qaub (HIC/SSC sim); sib npaug rau DNV-OS-F101 L450

Kev siv LSAW Steel Pipe:Cov kav dej roj av siab (10-15 MPa), cov kav dej xa tawm roj av hauv dej tob, cov kav dej roj thiab roj av qab ntsev (H₂S ib puag ncig), cov kav dej ntws hauv qab dej hiav txwv thiab cov kav dej nce, cov kav dej roj arctic (kev tawv tsis kub), cov kav dej CO₂ rau kev ntes thiab khaws cov pa roj carbon (CCS), cov kav dej txhaj tshuaj siab, kev teeb tsa cov qauv rau cov platforms hauv dej hiav txwv

Womic Steel muab cov yeeb nkab zoo thiab sib tw ntawm API 5L X65 LSAW steel yeeb nkab, ncaj seam submerged arc welded yeeb nkab, UOE kab yeeb nkab, phab ntsa hnyav carbon yeeb nkab, JCOE roj trunk kab yeeb nkab, sour service yeeb nkab. Daim ntawv pov thawj zeb EN 10204 3.1/3.2, hydro test, UT/PAUT, beveled kawg, 3PE/FBE/3LPP txheej muaj. Lub Hoobkas ncaj qha muab khoom rau EPC pipeline thiab offshore projects thoob ntiaj teb.

Xa email rau peb Cov Lus Qhia Txog Khoom

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

1. Womic Steel: Kev Muaj Peev Xwm Tsim Khoom & Lub Zog ntawm Lub Tuam Txhab

Womic Steel Group ua haujlwm ntau txoj kab tsim khoom LSAW uas npog peb txoj kev tsim khoom tseem ceeb ntxiv rau cov peev xwm tshwj xeeb ntawm phab ntsa hnyav. Kev tsim khoom X65 xav tau kev ua haujlwm thermomechanical tswj hwm (TMCP) ntawm cov phaj thiab kev tswj hwm cua sov kom raug thaum vuam.

● Kab JCOE:Rau cov txoj kab uas hla 406mm - 1,422mm (16″–56″), phab ntsa tuab txog li 50.8mm. Cov kauj ruam-rau-kauj ruam JCO tsim nrog kev nthuav dav tshuab. Haum rau feem ntau ntawm cov ntawv thov kab X65 hauv hiav txwv.

●Kab UOE:Rau cov kab uas hla 508mm - 1,220mm (20″–48″), phab ntsa tuab txog li 40mm. U-forming ces O-forming nrog hydraulic expansion. Qhov tseeb zoo tshaj plaws hauv chav kawm (± 0.2% OD), nyiam rau cov kav dej tob hauv dej hiav txwv, cov risers, thiab cov kev pabcuam qaub.

●Phaj Dov (Ib Leeg Sib Dhos):Rau cov kav dej uas muaj txoj kab uas hla 600mm – 1,600mm (24″–63″), phab ntsa tuab ntawm 25mm txog 70mm. Ib lub phaj dov rau hauv ib lub tog raj kheej. Zoo tagnrho rau cov kav dej phab ntsa hnyav X65 uas xav tau kev tiv thaiv kev tawg siab.

●Phaj dov (Ob chav sib txuas):Rau cov phab ntsa tuab > 50.8 hli txog 80 hli, siv ob daim hlau vuam ntev. Siv rau cov kav dej CO₂ siab heev thiab kev txhaj dej.

Tag nrho cov peev xwm LSAW tshaj 300,000 tons txhua xyoo, nrog rau kev tsim khoom X65 tshaj 70,000 tons hauv ib xyoos. Womic Steel tuav API 5L Monogram, ISO 9001, CE PED, thiab raug tshuaj xyuas tsis tu ncua los ntawm ABS, DNV, TÜV, thiab BV. Cov ntaub ntawv thoob ntiaj teb hauv 80+ lub tebchaws nrog ntau tshaj 1,200 km ntawm X65 pipelines.

Kev Yooj Yim Tsim Khoom:

●JCOE: 406–1,422mm OD × 6.0–50.8mm WT × ≤ 18m

●UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m (kev nthuav dav ntawm lub tshuab, qhov puag ncig ±0.2%)

●Phaj dov (ib txoj kab sib txuas): 600–1,600mm OD × 25–70mm WT × ≤ 12m

●Phaj dov (ob chav sib txuas): 1,000–2,000mm OD × 25–80mm WT × ≤ 12m

Tag nrho cov kav dej X65 tuaj yeem muab nrog PWHT (kev kho cua sov tom qab vuam) rau phab ntsa tuab lossis kev pabcuam qaub. Kev sim cuam tshuam qis-kub muaj nyob rau hauv qab -46 ° C thiab -60 ° C.

2. API 5L X65: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo

API 5L X65 (L450) yog ib hom yeeb nkab uas muaj zog heev uas siv dav rau kev xa roj mus ntev thiab cov kav dej tob hauv dej hiav txwv. Qhov muaj zog tsawg kawg nkaus yog 450 MPa (65,300 psi) thiab lub zog tensile yog 535 MPa (77,600 psi). X65 yog tsim los ntawm kev siv kev tswj hwm dov (TMCP) nrog microalloying (Nb, V, Ti, feem ntau nrog Mo rau kev pabcuam qaub) kom ua tiav cov qauv ferrite lossis bainitic zoo.

Cov Tshuaj Lom Zem (Kev Tshuaj Xyuas Ladle, qhov siab tshaj plaws % los ntawm pawg):

Khoom	API 5L X65 PSL1 (siab tshaj plaws%)	API 5L X65 PSL2 (siab tshaj plaws%)	Kev Pabcuam Qab Zib (lub hom phiaj ib txwm muaj)
C	0.22 (feem ntau yog 0.08-0.10)	0.12	≤ 0.08
Mn	1.60	1.60	≤ 1.50
P	0.025	0.025	≤ 0.015
S	0.015	0.015	≤ 0.003
Si	0.45	0.45	0.15-0.40
V	0.10	0.10	≤ 0.08
Nb	0.05	0.05	0.03-0.05
Ti	0.04	0.04	≤ 0.025
Mo	Tsis tau teev tseg	Tsis tau teev tseg	≤ 0.30 (rau qaub)
CEV	Tsis tau teev tseg	≤ 0.43	≤ 0.40 (feem ntau ≤ 0.38)

Rau kev pabcuam qaub, Womic tswj CEV ≤ 0.40% thiab siv cov phaj qis-carbon, qis-manganese, qis-sulfur nrog kev kho calcium rau kev tswj cov duab suav nrog.

Cov Khoom Siv Kho Tshuab (Chav Kub):

Vaj tse	API 5L X65 PSL1	API 5L X65 PSL2
Lub Zog Tawm (min)	450 MPa (65,300 psi)	450–600 MPa
Lub zog Tensile (min)	535 MPa (77,600 psi)	535–760 MPa
Kev ntev (min)	19% (rau 50 hli gauge)	19%
Qhov Piv Txwv ntawm Cov Nyiaj Tau Los (siab tshaj plaws)	Tsis tau teev tseg	0.93
Qhov nyuaj (siab tshaj plaws)	Tsis tau teev tseg	90 HRB (qaub: 85 HRB ib txwm muaj)
Kev Cuam Tshuam Toughness (min)	Tsis tas yuav tsum muaj	27 J @ 0°C (xaiv tau -20°C, -40°C, -46°C)

Kev sib piv nrog X60 thiab X70:

Qib	Cov qoob loo MPa	Tensile MPa	Qhov Piv Txwv ntawm Cov Khoom	Daim Ntawv Thov Ib Txwm Muaj
X60	415	520	≤ 0.93	Cov roj siab, nyob ntawm ntug dej hiav txwv
X65	450	535	≤ 0.93	Siab heev, dej tob
X70	485	570	≤ 0.93	Siab heev, deb ntev

3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv

Khoom	Cov Lus Qhia Tshwj Xeeb
Tus Qauv	API 5L PSL1 / PSL2 (kuj yog ISO 3183 L450, DNV-OS-F101 L450)
Cov Txheej Txheem Tsim Khoom	JCOE, UOE, phaj dov (ib leeg/ob leeg sib txuas)
Sab Nraud Txoj Kab uas hla	219mm – 1,600mm (8″ – 63″)
Phab ntsa tuab ntau yam	JCOE/UOE: 6.0mm – 50.8mm; Phaj dov: 25mm – 70mm (txog li 80mm kev cai)
Qhov Ntev Ntau	Txheem: 6m, 12m, 18m; Ncua: txog li 24m (JCOE/UOE) lossis 12m (phaj dov)
Xaus tiav	Plain End (PE), Beveled End (BE) ib API 5L (30° bevel, 1.6mm hauv paus ntsej muag)
Qhov Chaw Tiav	Liab qab, Roj, 3LPE, 3LPP, FBE, Epoxy roj thee, Epoxy kua
Kev kam rau siab	OD: ±0.5% lossis ±3.2 hli (qhov twg tsawg dua); WT: -0% / +15%; Ntev: +50 hli / -0 hli

4. Qhov Loj & Cov Lus Qhia Tshwj Xeeb - API 5L X65 LSAW Cov Yeeb Nkab Hlau (Xaiv Cov Loj Ib Txwm)

OD (hli)	Kev Xaiv WT (hli)	Txheej Txheem	Kwv yees li qhov hnyav (kg / m2)	Tus Qauv Ntev	Daim Ntawv Thov Ib Txwm Muaj
273	6.4, 8.0, 10.0, 12.5	JCOE	42.1 – 80.1	12m	Cov kab roj sab nraud
324	8.0, 10.0, 12.5, 14.0	JCOE	62.4 – 107.1	12m / 18m	Kev sib sau ua ke ntawm cov roj
406	8.0, 10.0, 12.5, 14.0, 16.0, 19.0	JCOE/UOE	78.5 – 181.4	12m / 18m	Cov kab ntawm lub cev
508	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	UOE	122.8 – 263.8	12m / 18m / 24m	Cov roj siab
610	12.5, 14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	184.2 – 401.8	12m / 18m / 24m	Cov kab roj tseem ceeb
711	14.0, 16.0, 19.0, 22.0, 25.4, 28.0, 30.0	JCOE/UOE	240.7 – 503.8	12m / 18m	Cov roj hla teb chaws
813	16.0, 19.0, 22.0, 25.4, 30.0, 32.0, 35.0	JCOE	314.4 – 671.4	12m / 18m	Kev xa tawm mus rau txawv teb chaws
914	19.0, 22.0, 25.4, 30.0, 35.0, 38.0, 40.0	JCOE	419.5 – 862.0	12m / 18m	Cov roj av tob
1,016	22.0, 25.4, 30.0, 35.0, 40.0, 45.0, 50.0	JCOE/Kuav	539.2 – 1,191.7	12m	Dej tob heev
1,220	25.4, 30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Dov (ib leeg)	748.4 – 1,577.8	12m	Cov kav dej Arctic
1,422	30.0, 35.0, 40.0, 45.0, 50.0, 55.0, 60.0	Dov (ib leeg)	1,030 – 2,016	12m	CO₂ siab heev
1,600	35.0, 40.0, 50.0, 60.0, 70.0	Dov (ob npaug)	1,350 – 2,640	10m / 12m	Qhov project tshwj xeeb

*Cov kav dej X65 uas muaj phab ntsa hnyav (≥ 25mm rau kev pabcuam qaub, ≥ 32mm rau cov tsis qaub) xav tau PWHT. X65 rau dej tob xav tau Charpy impact ntawm -20°C lossis qis dua thiab kuaj CTOD.*

5. Cov Qauv & Qib Sib Xws - LSAW Kab Yeeb Nkab & Cov Yeeb Nkab Qauv

Tus Qauv	Cov Qib Hlau	Daim Ntawv Thov Ib Txwm Muaj	Cov Txheej Txheem Tsim
API 5L PSL1/PSL2	X65, X70	Kev sib kis roj / roj av	JCOE/UOE/Kuav
API 5L PSL2 (qaub)	X65, X70	Kev pabcuam qaub (H₂S)	UOE + PWHT
ISO 3183	L450, L485	Cov haujlwm thoob ntiaj teb	JCOE/UOE
DNV-OS-F101	L450, L485	Cov kav dej hauv qab dej hiav txwv	UOE
EN 10217-1	S355JR	Cov raj xa dej siab	JCOE
NORSOK M-120	X65	Lub platform offshore	UOE
ASTM A671	CC65, CC70	Kub qis	Dov

Kev siv luv luv:Cov kav dej xa tawm roj hauv dej tob, cov kav dej roj siab, cov kav dej kev pabcuam qaub, cov kav dej CO₂ rau CCS, cov kav dej hauv qab dej hiav txwv, kev xa roj arctic.

6. Cov Txheej Txheem Tsim Khoom - LSAW (JCOE / UOE / Dov Phaj) rau X65 Cov Yeeb Nkab Hlau

X65 xav tau TMCP (thermomemechanical controlled processing) phaj thiab kev tswj hwm cua sov nruj thaum lub sijhawm SAW vuam kom tswj tau HAZ toughness.

Txheej Txheem JCOE (406–1,422mm OD, 6.0–50.8mm WT):

● Kev txiav ntug phaj (X lossis J bevel) nrog kev ua kom raug ±0.5 hli

● Ua ntej khoov cov npoo

● Kev tsim cov JCO sib law liag

● Kev vuam siv cov khoom sib txuas (cov khoom sib nrug)

● SAW sab hauv (qhov nkag cua sov ≤ 2.5 kJ/mm rau X65)

● Kev txiav rov qab

● SAW Sab Nraud (ntau zaus dhau, qhov kub ntawm qhov sib tshuam ≤ 200°C)

● Kev nthuav dav ntawm lub tshuab (1-1.5% OD)

● Haum rau feem ntau ntawm cov kab X65 hauv hiav txwv

Cov Txheej Txheem UOE (508–1,220mm OD, 6.0–40mm WT):

● U-nias (2000-4000t)

● O-nias (3000-6000t)

● Kev nthuav dav ntawm lub tshuab (48-72 ntu)

● Vuam nrog kev tswj cua sov

● Zoo dua rau cov kav dej hauv dej tob (±0.2% puag ncig, kev ntxhov siab tsawg)

Phaj Dov (Ib Leeg Sib Dhos) rau Phab Ntsa Hnyav (600–1,600mm OD, 25–70mm WT):

● 4-yob khoov rau hauv lub tog raj kheej

● SAW ntau zaus (hauv paus, sau, hau)

● PWHT yuav tsum tau ua rau phab ntsa tuab ≥ 25 hli rau kev pabcuam qaub

● Siv rau CO₂ siab thiab kev txhaj dej

Kev Kho Mob Kub Tom Qab Weld (PWHT):Rau X65 kev pabcuam qaub, PWHT siv rau txhua phab ntsa tuab ≥ 25mm (lossis raws li tau teev tseg). Soaking kub 580-620 ° C, tuav 1 teev ib 25mm. Txias txias ≤ 200 ° C ib teev. Hardness tom qab PWHT: hlau puag 78-85 HRB, weld 82-88 HRB.

Kub Qis & CTOD Muaj Peev Xwm:Rau cov ntawv thov hauv hiav txwv thiab arctic, Womic muab X65 nrog Charpy impact ntawm -46 ° C (min 27J, feem ntau 100-150J) thiab CTOD (Crack Tip Opening Displacement) kev sim ib qho BS 7448 lossis ASTM E1820. Tus nqi CTOD ib txwm muaj: ≥ 0.25mm ntawm -20 ° C rau cov hlau vuam thiab HAZ.

7. Kev Tswj Xyuas Zoo & Cov Txheej Txheem Ntsuas rau API 5L X65 LSAW Steel Pipe

Theem	Txoj Kev Tshuaj Xyuas	Lub Hom Phiaj	Cov Txheej Txheem Siv Tau
Phaj	Kev Tshuaj Xyuas Tshuaj (OES)	Txheeb xyuas cov khoom xyaw X65	Tag nrho
Phaj	Ultrasonic (lamination)	Tshawb nrhiav qhov tsis zoo sab hauv	Tag nrho
Phaj	Tensile (L + T)	Cov khoom siv kho tshuab	Tag nrho
Phaj	Qhov loj ntawm cov noob (ASTM E112)	Cov noob zoo (ASTM 10+)	X65 PSL2
Thaum lub sijhawm tsim	Qhov ntev (OD, ovality)	Xyuas kom meej tias muaj kev sib npaug	Tag nrho
Weld seam	100% Tsis Siv Neeg UT (TOFD)	Tshawb nrhiav qhov tsis zoo ntawm vuam	Tag nrho
Weld seam	RT (qhov chaw/puv)	Qhov zoo ntawm vuam	Tag nrho
Weld seam	MPI (ntiv taw/HAZ)	Cov kab nrib pleb ntawm qhov chaw	Tag nrho
Weld seam	Kev nyuaj traverse (weld, HAZ, BM)	Kev pabcuam qaub	PSL2 qaub
Cov yeeb nkab tiav lawm	Kev Ntsuas Hydrostatic	Kev ua siab ncaj ncees	Tag nrho
Cov yeeb nkab tiav lawm	Charpy V-Notch (PSL2)	Kev kub tsawg	PSL2 xwb
Cov yeeb nkab tiav lawm	Qhov nyuaj (HRB / HV10)	Kev ua raws li qhov tsis zoo	PSL2 qaub
Cov yeeb nkab tiav lawm	Kev Khoov / Flattening	Kev yoog tau	Tag nrho
Cov yeeb nkab tiav lawm	DWTT (xaiv tau)	Kev tawg ntawm cov pob txha tawg	Arctic
Cov yeeb nkab tiav lawm	CTOD (xaiv tau)	Kev tawg tawv	Offshore/dej tob

Xaiv tau rau kev pabcuam tseem ceeb:

● HIC ib NACE TM0284 (Daim Ntawv Tshuaj A lossis B, 96 teev)

● SSC rau NACE TM0177 (Txoj Kev A, 720h)

● Qhov kub qis dua ntawm -46°C, -60°C

● DWTT ntawm -20°C lossis qis dua (≥ 85% thaj tsam txiav)

● CTOD ntawm -20 ° C lossis -46 ° C (≥ 0.25 hli)

● Tag nrho lub cev UT (tsis yog tsuas yog xaws xwb)

Kev kuaj xeb (CO₂, brine)

8. Cov Ntawv Thov Tseem Ceeb - API 5L X65 LSAW Cov Yeeb Nkab Hlau

Cov kav dej xa tawm roj av hauv dej tob- Qhov tob ntawm dej txog li 3,000m, tiv taus siab sab nraud (txheej txheem UOE nrog lub voj voog nruj)

Cov kav dej roj av siab- Kev ua haujlwm siab txog li 15 MPa (2,200 psi), kev txo cov phab ntsa vs qib qis dua

Cov kav dej roj thiab roj av uas tsis muaj zog– Cov chaw muaj H₂S (PSL2 nrog HIC/SSC, PWHT, qhov nyuaj ≤ 85 HRB)

Cov kav dej CO₂ rau kev ntes thiab khaws cov pa roj carbon (CCS)- Kev thauj mus los CO₂ siab, xav tau kev tawv tawv kub qis

Cov dej ntws thiab cov kab dej hauv qab dej hiav txwv- Cov ntawv thov dynamic uas xav tau CTOD thiab kev sim qaug zog

Cov kav dej roj Arctic thiab permafrost- Qhov cuam tshuam qis-kub txog li -46 ° C, DWTT rau kev tswj kev tawg

Cov kab txhaj tshuaj dej siab- Kev rov qab roj zoo dua, siab txog li 35 MPa

Cov voj voog nthuav dav ntawm cov kav dej- Cov ntawv thov siab uas xav tau kev tsim qauv raws li kev ntxhov siab (X65 nrog qhov piv txwv tshwj xeeb)

9. Ntim & Xa Khoom - API 5L X65 LSAW Cov Yeeb Nkab Hlau

Ib yam li cov khoom qub nrog kev saib xyuas ntxiv rau kev tiv thaiv txheej txheem ntawm cov kav dej X65 uas muaj nqi siab. Cov kav dej tau ntim ib leeg nrog cov ntoo dunnage padded, lub hau kawg, thiab cov hnab tiv thaiv xeb rau kev caij nkoj ntev. Rau cov haujlwm dej tob, kev saib xyuas tshwj xeeb rau kev tiv thaiv bevel tau muab.

10. Cov txiaj ntsig ntawm Womic Steel & FAQ - API 5L X65 LSAW Steel Pipe

Vim li cas Womic Steel rau X65 LSAW?

● Cov txheej txheem UOE xa ±0.2% OD puag ncig - qhov tseem ceeb rau kev tiv thaiv dej tob

● Kev pabcuam qaub ncaug tau ntawv pov thawj nrog HIC/SSC thiab PWHT muaj peev xwm

● Qhov cuam tshuam qis-kub txog li -60°C thiab kev sim CTOD rau kev kho qhov tawg

● API 5L Monogram + DNV kev pom zoo rau offshore

● Tshaj 1,200 km ntawm cov kav dej X65 xa mus thoob ntiaj teb

● Kev tshuaj xyuas los ntawm DNV, ABS, BV, SGS, TÜV los ntawm lwm tus neeg

Cov Lus Nug Feem Ntau:

Q: Qhov txawv ntawm X65 thiab X60 rau cov kav dej hiav txwv yog dab tsi?
A: X65 muaj 8% siab dua qhov muaj zog (450 vs 415 MPa), uas ua rau cov phab ntsa nyias dua me ntsis. Rau cov dej tob (≥ 1,000m), X65 feem ntau nyiam rau nws qhov kev tiv thaiv kev tawg zoo dua thiab kev ua haujlwm qaug zog. Txawm li cas los xij, X65 xav tau cov txheej txheem vuam nruj dua thiab muaj kev cuam tshuam ntau dua rau kev tawg hydrogen. Rau cov dej tob <500m, X60 tej zaum yuav pheej yig dua.

Q: Koj puas tuaj yeem muab X65 nrog CTOD kev kuaj rau cov neeg sawv hauv hiav txwv?
A: Yog. Peb ua qhov kev sim CTOD raws li BS 7448 lossis ASTM E1820 ntawm qhov kub thiab txias uas tau teev tseg (feem ntau -20 ° C lossis -46 ° C). Cov nqi CTOD tsawg kawg nkaus: 0.25 hli rau cov hlau vuam, 0.30 hli rau HAZ. Peb tau muab CTOD-tested X65 rau北海thiab cov haujlwm ua nyob rau sab hnub tuaj Asia.

Q: Qhov siab tshaj plaws ntawm phab ntsa tuab rau X65 LSAW yeeb nkab yog dab tsi?
A: JCOE/UOE siab tshaj 50.8 hli, dov phaj ib leeg txog li 70 hli, dov phaj ob leeg txog li 80 hli. Rau cov phab ntsa tuab > 50.8 hli, PWHT yog qhov yuav tsum tau ua. Tsis ntev los no peb tau muab X65 1,016 hli OD × 60 hli WT rau cov kav dej CO₂ siab.

Q: Koj ua li cas thiaj paub tseeb tias HAZ muaj zog rau X65 field welding?
A: Peb tswj cov tshuaj lom neeg ntawm lub phaj (CEV qis, ≤ 0.40%), cua sov nkag thaum lub sijhawm SAW (≤ 2.5 kJ / mm2), thiab qhov kub thiab txias interpass (≤ 200 ° C). Peb muab cov lus qhia txog kev tsim nyog ntawm cov txheej txheem vuam (WPQ) rau cov neeg siv khoom thiab tuaj yeem muab cov qauv siv vuam. Kev cuam tshuam HAZ Charpy ib txwm muaj ntawm -20 ° C: 120-200J.

Q: X65 puas haum rau kev pabcuam qaub (H₂S)?
A: Yog, tab sis yuav tsum tau PSL2 nrog CEV qis (≤ 0.40%), PWHT rau txhua phab ntsa tuab ≥ 20mm, hardness ≤ 85 HRB, thiab HIC/SSC kev kuaj. Womic tau muab kev pabcuam qaub X65 rau Middle East (30 ppm H₂S) thiab Canada (roj qaub).

Q: Lub sijhawm ua cov yeeb nkab X65 LSAW feem ntau yog dab tsi?
A: Tus qauv X65 PSL1: 40-55 hnub. X65 PSL2 nrog kev pabcuam qaub thiab PWHT: 60-80 hnub. Kev txiav txim maj (30-45 hnub) rau qhov ntau <2,000 tons ua tau yog tias cov phaj muaj nyob hauv Tshuag.

Cov Lus Qhia Txog Qhov Project - North Sea Deepwater Gas Export Pipeline

Lub Tebchaws:Norway (North Sea, Balder field cheeb tsam)
Tus Qauv & Qib:API 5L X65 PSL2 nrog kev pabcuam qaub thiab CTOD cov kev cai
Qhov Loj & Qhov Ntau:

● OD 610mm (24″) × WT 22.2mm – 28,000 meters (kwv yees li 9,200 tons) tsim los ntawm UOE txheej txheem

● OD 610mm (24″) × WT 25.4mm – 6,000 meters (kwv yees li 2,300 tons) tsim los ntawm UOE txheej txheem (phab ntsa tuab dua rau ntu riser)

● OD 813mm (32″) × WT 30.0mm – 4,000 meters (kwv yees li 2,500 tons) tsim los ntawm cov phaj dov ib leeg (rau ntug dej hiav txwv)
Tag Nrho:38,000 meters (38 km), kwv yees li 14,000 tons

Cov Lus Qhia:Txheej sab nraud 3LPP (3.5 hli tag nrho tuab) rau kev pabcuam kub siab (110 ° C), beveled kawg 30 ° / 1.6 hli lub hauv paus ntsej muag nrog stainless hlau bevel tiv thaiv, hydrotest ntawm 22.5 MPa (tsim siab 17.0 MPa). Yuav tsum muaj Charpy cuam tshuam ntawm -20 ° C (yam tsawg kawg nkaus 50J, ua tiav 120-200J) thiab ntawm -46 ° C (yam tsawg kawg nkaus 27J, ua tiav 80-150J). Kev kuaj CTOD ib BS 7448 ntawm -20 ° C - kev lees txais: weld hlau ≥ 0.25 hli, HAZ ≥ 0.30 hli. HIC ib NACE TM0284 (Daim ntawv A, 96h) - kev lees txais: CLR 0%, CTR 0%, CSR 0%. SSC ib NACE TM0177 - tsis muaj kev tawg. PWHT thov rau txhua lub kav dej vim yog kev pabcuam qaub. 100% UT nrog TOFD thiab tag nrho lub cev UT (tsis yog tsuas yog seam). DNV sab nraud tshuaj xyuas thoob plaws hauv kev tsim khoom.

Daim Ntawv Thov:Cov kav dej xa roj av tob tob los ntawm thaj chaw Balder (qhov tob ntawm dej 800-1,200m) mus rau qhov chaw txais roj hauv tebchaws Norway. Cov kav dej 38 km suav nrog ntu dynamic riser (2 km, 25.4mm WT) thiab ntug dej hiav txwv mus txog thaj chaw pob zeb (4 km, 30mm WT dov phaj).

Cov Kev Sib Tw thiab Kev Dais Teeb Meem:

● Tiv thaiv kev tawg dej tob– Qhov tob ntawm dej txog li 1,200m ua rau muaj lub zog sab nraud ntawm 12.5 MPa. Lub yeeb nkab UOE 24″ × 22.2mm xav tau kom ua tau raws li lub zog ntawm kev tawg ≥ 25 MPa (qhov kev nyab xeeb 2). Womic tsim cov yeeb nkab UOE nrog ovality ≤ 0.2% (ntsuas ntawm 0.15-0.18%) thiab kev ntxhov siab seem ≤ 35% SMYS. Peb tau ua qhov kev tshuaj xyuas finite element (FEA) ntawm cov kev tsim khoom thiab tau lees paub nrog kev sim lub zog ntawm kev tawg ntawm ob qhov qauv puv ntoob (tau ua tiav 28.5 MPa thiab 29.2 MPa).

● Kev pabcuam qaub nrog H₂S siab– Cov roj muaj 50 ppm H₂S ntawm 90°C qhov kub ua haujlwm. Womic xaiv cov phaj qis-carbon (C ≤ 0.07%), qis-manganese (Mn ≤ 1.40%), qis-sulfur (S ≤ 0.002%) nrog kev kho calcium. CEV tau khaws cia ntawm 0.35-0.38%. PWHT tau siv rau txhua lub kav dej (soaking 600°C ± 10°C, tuav 1.5 teev). Qhov nyuaj tom qab PWHT: hlau puag 78-84 HRB, weld 82-86 HRB, HAZ 80-84 HRB. HIC thiab SSC kev xeem dhau nrog xoom tawg.

● CTOD tawg toughness rau riser– Qhov seem dynamic riser xav tau qhov tawg siab kom tiv taus nthwv dej. Womic tau ua qhov kev sim CTOD ntawm cov hlau vuam thiab HAZ ntawm -20 ° C. Cov txiaj ntsig: hlau vuam 0.35-0.55 hli (≥ 0.25 hli xav tau), HAZ 0.40-0.70 hli (≥ 0.30 hli xav tau). Peb kuj tau ua Charpy qis-kub ntawm -46 ° C (qhov nruab nrab 110J). DNV tau pom txhua qhov kev sim CTOD.

● Txheej txheej kub siab (3LPP)– Kub ua haujlwm 90°C, nrog rau qhov siab tshaj plaws 110°C thaum kaw. Tus qauv 3LPE (polyethylene) tsuas yog txwv rau 80°C. Womic thov 3LPP (polypropylene) txheej nrog tuab 3.5mm (txheej sab saud 2.5mm + nplaum 0.5mm + FBE 0.5mm). Txheej dhau qhov kev sim cathodic disbondment ntawm 110°C (disbondment radius ≤ 8mm tom qab 28 hnub). Lub zog tev ntawm 110°C ntsuas ntawm 60 N/cm (yam tsawg kawg nkaus 50 N/cm).

● Kev kam rau siab heev rau kev teeb tsa reel-lay– Cov kav dej tau teeb tsa siv txoj kev reel-lay (cov yeeb nkab spooled rau ntawm lub reel vessel). Qhov no yuav tsum tau tswj hwm qhov ovality heev (≤ 0.2%) thiab qhov siab ntawm weld reinforcement ≤ 0.5mm. Womic's UOE txheej txheem tau ua tiav qhov ovality 0.15-0.18%. Peb tau sib tsoo weld caps rau ≤ 0.3mm qhov siab. Tag nrho cov kav dej tau dhau qhov kev xeem "reelability" tshwj xeeb: 10 lub voj voog spooling puv ntoob yam tsis muaj kev tawg.

● Kev Thauj Mus Rau Tebchaws Norway– Cov kav dej tau raug xa los ntawm Shanghai mus rau Stavanger, Norway los ntawm lub nkoj tawg-tawg (cov kav dej tshwj xeeb). Kev hla Hiav Txwv North Hiav Txwv thaum lub caij ntuj no xav tau cov ntim khoom tiv thaiv kev sib sau ua ke. Womic siv cov hnab VCI (vapor corrosion inhibitor) thiab cov tshuaj silica gel desiccants sab hauv lub hau kawg. Tag nrho 14,000 tons tuaj txog yam tsis muaj kev puas tsuaj los ntawm xeb lossis txheej txheej.

Qhov Tshwm Sim:Lub raj xa roj Balder tau teeb tsa rau hauv Q3 2024. Lub reel-lay installation (ua los ntawm tus thawj coj hauv offshore contractor) tau tshaj tawm xoom lub cev yeeb nkab lossis weld seam tsis ua haujlwm thaum lub sijhawm spooling thiab xa tawm. Tag nrho 38 km dhau qhov kev sim siab ntawm ntug dej hiav txwv. Tus neeg siv khoom (tus neeg ua haujlwm loj hauv Norwegian) tau muab "Supplier Performance Award" rau Womic Steel, sau tseg "kev sib xws ntawm qhov ntev thiab cov txiaj ntsig CTOD." Womic tam sim no yog tus neeg muag khoom tau pom zoo rau ob qhov project ntxiv North Sea tie-back.

Tiv tauj:
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Womic Steel - Koj tus khub txhim khu kev qha rau API 5L X65 LSAW cov kav dej rau cov kav dej tob hauv hiav txwv, cov kab roj siab, cov kev pabcuam qaub, thiab cov ntawv thov arctic thoob ntiaj teb.

Yav dhau los: API 5L X60 (L415) LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom

Tom ntej no: API 5L X65 PSL2 Sour Service LSAW Steel Pipe: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom