API 5L X42 LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Khoom Qhia Txog Duab Tshwj Xeeb

API 5L X42 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 X42 LSAW zoo rau kev xa roj thiab roj nruab nrab, cov tes hauj lwm sib sau ua ke roj, thiab cov kab txhaj dej. X42 muaj lub zog tsawg kawg nkaus ntawm 290 MPa (42,100 psi), muab kev txhim kho pheej yig los ntawm GR.B rau cov haujlwm xav tau kev ua haujlwm siab dua yam tsis tau txog X52 tus nqi. Cov txheej txheem LSAW suav nrog JCOE, UOE, thiab dov phaj vuam txoj kev, txhua tus xa cov kab ncaj nrog kev sib txuas zoo dua, qhov ntev ntawm qhov vuam luv dua, thiab kev ruaj khov zoo heev. Rau cov kab uas loj heev lossis cov phab ntsa tuab (txog li 50.8 hli), 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 1,600mm (8″ - 63″), phab ntsa tuab los ntawm 5.0mm txog 60mm (nyob ntawm cov txheej txheem), ntev txog li 24m. Daim ntawv pov thawj zeb, kev sim dej, 100% ultrasonic lossis phased array kev sim, beveled ends, thiab anti-corrosion coating (3LPE, FBE, thee tar) muaj. Haum rau onshore thiab offshore medium-pressure kab, structural piling, thiab sour service (PSL2).

LSAW Hlau Yeeb Nkab Loj:Sab Nraud Txoj Kab uas hla: 219mm – 1,600mm (8″ – 63″), Phab Ntsa Thickness: 5.0mm – 60.0mm (JCOE/UOE siab tshaj 50.8mm, phaj dov siab tshaj 60mm), Ntev: 6m – 18m tus qauv, kev cai ntev txog li 24m

Tus Qauv & Qib ntawm LSAW Steel Pipe:API 5L X42 PSL1 / PSL2; kuj muaj nyob rau hauv API 5L X42 rau kev pabcuam qaub (HIC/SSC sim); sib npaug rau ISO 3183 L290

Kev siv LSAW Steel Pipe:Kev sib sau ua ke ntawm cov roj av nruab nrab (2–6 MPa), cov kav dej roj nyoos, cov qhov dej txhaj tshuaj, cov chaw tso dej tawm hauv hiav txwv, kev thauj mus los ntawm cov slurry, kev muab dej siab, cov kav dej rau cov choj thiab chaw nres nkoj, cov kav dej ua haujlwm hauv kev lag luam

Womic Steel muab cov yeeb nkab zoo thiab sib tw ntawm API 5L X42 LSAW steel yeeb nkab, ncaj seam submerged arc welded yeeb nkab, UOE kab yeeb nkab, phab ntsa hnyav carbon yeeb nkab, JCOE roj sib sau ua ke yeeb nkab. Daim ntawv pov thawj zeb EN 10204 3.1/3.2, hydro test, UT/PAUT, beveled end, 3PE/FBE/coal tar coating muaj. Lub Hoobkas ncaj qha muab khoom rau EPC pipeline thiab cov haujlwm tsim kho 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 hauv kev tsim khoom tseem ceeb kom tau raws li ntau yam kev xav tau ntawm cov haujlwm:

● 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. Kev ua haujlwm siab, zoo puag ncig.

●Kab UOE:Rau cov txoj 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, nyiam rau kev pabcuam dej tob thiab qaub.

●Phaj Dov (Ib Leeg Sib Dhos):Rau cov txoj kab uas hla 600mm - 1,600mm (24″–63″), phab ntsa tuab ntawm 25mm txog 60mm. Ib lub phaj dov rau hauv lub tog raj kheej nrog ib qho vuam ntev. Zoo tagnrho rau phab ntsa tuab dhau JCOE / UOE peev xwm.

●Phaj dov (Ob chav sib txuas):Rau cov phab ntsa tuab > 50.8 hli txog 80 hli, siv ob daim hlau vuam ntev. Feem ntau siv rau cov kav dej roj siab.

Tag nrho cov peev xwm LSAW tshaj 300,000 tons txhua xyoo. 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.

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 ua rau lub voj voog zoo dua)

●Phaj dov (ib txoj kab sib txuas): 600–1,600mm OD × 25–60mm WT × ≤ 12m (qhov hnyav txwv)

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

Tag nrho cov kav dej tuaj yeem muab nrog PWHT (kev kho cua sov tom qab vuam) rau phab ntsa tuab lossis kev pabcuam qaub.

2. API 5L X42: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo

API 5L X42 yog qib yeeb nkab kab nruab nrab uas muaj zog nruab nrab 290 MPa (42,100 psi) qhov tsawg kawg nkaus ntawm lub zog tawm thiab 415 MPa (60,200 psi) qhov tsawg kawg nkaus ntawm lub zog tensile. Nws sau qhov sib txawv ntawm GR.B (245 MPa) thiab X52 (360 MPa), feem ntau teev rau cov kab ke sau roj uas qhov kev xav tau siab yog qhov nruab nrab tab sis siab dua li cov kab faib tawm txheem.

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

Khoom	API 5L X42 PSL1 (siab tshaj%)	API 5L X42 PSL2 (siab tshaj plaws%)
C	0.26	0.22
Mn	1.30	1.30
P	0.030	0.025
S	0.030	0.015
Si	0.45	0.45
Nb+V+Ti	0.05	0.05 (raws li tau pom zoo)

PSL2 xav tau cov pa roj carbon sib npaug (CEV) ≤ 0.43% rau kev txhim kho weldability hauv cov xwm txheej teb.

Cov Khoom Siv Kho Tshuab (Chav Kub):

Vaj tse	API 5L X42 PSL1	API 5L X42 PSL2
Lub Zog Tawm (min)	290 MPa (42,100 psi)	290–495 MPa
Lub zog Tensile (min)	415 MPa (60,200 psi)	415–655 MPa
Kev ntev (min)	23% (rau 50 hli gauge)	22%
Qhov nyuaj (siab tshaj plaws)	Tsis tau teev tseg	90 HRB
Kev Cuam Tshuam Toughness (min)	Tsis tas yuav tsum muaj	27 J @ 0°C (xaiv tau -20°C)

Kev sib piv nrog GR.B thiab X52:

Qib	Cov qoob loo MPa	Daim Ntawv Thov Ib Txwm Muaj
GR.B	245	Kev faib dej/roj txheem
X42	290	Kev sib sau ua ke ntawm cov roj nruab nrab, kev txhaj dej
X52	360	Cov kab hluav taws xob siab dua

3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv

Khoom	Cov Lus Qhia Tshwj Xeeb
Tus Qauv	API 5L PSL1 / PSL2 (tseem yog ISO 3183 L290)
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: 5.0mm – 50.8mm; Phaj dov: 25mm – 60mm (txog li 80mm kev cai)
Qhov Ntev Ntau	Txheem: 6m, 12m, 18m; Txuas ntxiv: txog li 24m (JCOE/UOE) lossis 12m (phab ntsa hnyav dov)
Xaus tiav	Plain End (PE), Beveled End (BE) ib API 5L
Qhov Chaw Tiav	Liab qab, Roj, 3LPE, 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 X42 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
273	6.4, 8.0, 10.0, 12.5	JCOE	42.1 – 80.1	12m
324	6.4, 8.0, 10.0, 12.5, 14.0	JCOE	50.2 – 107.1	12m / 18m
406	8.0, 10.0, 12.5, 14.0, 16.0	JCOE/UOE	78.5 – 153.9	12m / 18m
508	8.0, 10.0, 12.5, 14.0, 16.0, 19.0	UOE	98.6 – 229.1	12m / 18m / 24m
610	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	UOE	148.0 – 319.1	12m / 18m / 24m
711	10.0, 12.5, 14.0, 16.0, 19.0, 22.0, 25.4	JCOE/UOE	172.9 – 429.4	12m / 18m
813	12.5, 14.0, 16.0, 19.0, 22.0, 25.4, 30.0	JCOE	246.7 – 579.8	12m / 18m
914	14.0, 16.0, 19.0, 22.0, 25.4, 30.0, 35.0	JCOE	310.8 – 759.2	12m / 18m
1,016	16.0, 19.0, 22.0, 25.4, 30.0, 35.0, 40.0	JCOE/Kuav	394.6 – 963.9	12m
1,220	19.0, 22.0, 25.4, 30.0, 35.0, 40.0, 45.0	Dov (ib qho xaws)	563.0 – 1,304.2	12m
1,422	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Dov (ib leeg / ob npaug)	875.1 – 1,692.5	12m
1,600	30.0, 40.0, 50.0, 60.0	Dov (ob chav xaws)	1,162 – 2,280	10m / 12m

Cov kav dej phab ntsa hnyav (≥ 40mm) feem ntau xav tau PWHT los txo cov kev ntxhov siab seem thiab ua tau raws li cov kev txwv hardness rau kev pabcuam qaub.

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	X42, X52, X60, X65, X70	Kev sib kis roj / roj av	JCOE/UOE/Kuav
ASTM A53	GR.B	Cov kav dej qis	JCOE
ASTM A106	GR.B/C	Kub siab	JCOE/Kuav
EN 10217-1	S235JR, S275JR	Cov raj xa dej siab	JCOE
EN 10219	S355JRH, S355J2H	Cov ntu ntawm cov qauv	JCOE/Kuav
DNV-OS-F101	L290 (X42)	Cov kav dej hauv qab dej hiav txwv	UOE
BS 7191	L290 (X42)	Cov qauv tsim kho hauv hiav txwv	UOE/Kuav

Kev siv luv luv:Cov tes hauj lwm sib sau ua ke roj, cov kab txhaj dej, cov chaw nce dej hiav txwv, cov ncej choj, cov kav dej slurry, cov kav dej ua haujlwm phab ntsa hnyav hauv cov chaw ua roj.

6. Cov Txheej Txheem Tsim Khoom - LSAW (JCOE / UOE / Dov Phaj) rau X42 Cov Yeeb Nkab Hlau

Womic Steel xaiv cov txheej txheem tsim nyog raws li txoj kab uas hla, phab ntsa tuab, thiab cov khoom siv kho tshuab.

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

● Kev txiav ntug phaj (X lossis J bevel)

● Ua ntej khoov (crimping) ntawm cov npoo

● Kev tsim cov duab J (punch press)

● Kev tsim cov duab C (cov pwm sib txawv)

● Kev tsim cov duab O (lub tog raj kheej kawg)

● Kev vuam siv cov khoom siv (cov khoom siv vuam raws ntug sib txuas)

● SAW sab hauv (ib txoj hlua lossis ntau txoj hlua)

● SAW Sab Nraud (tom qab rho tawm tom qab yog tias xav tau)

● Kev nthuav dav ntawm lub cev (nce 1–1.5% OD rau qhov puag ncig thiab txo kev ntxhov siab)

● Haum rau feem ntau cov yeeb nkab siv, qhov sib npaug zoo ntawm tus nqi thiab qhov zoo.

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

● U-nias ua rau lub phaj ua ib daim duab U

● O-nias kaw rau hauv ib lub cylindrical zoo li

● Expander (mechanical) mus rau qhov kawg txoj kab uas hla thiab puag ncig

● Kev vuam zoo ib yam li JCOE tab sis muaj kev ua haujlwm siab dua

● Nyiam siv rau cov kav dej tob thiab cov kev pabcuam qaub vim nws qhov puag ncig zoo dua (±0.2% OD) thiab kev ntxhov siab tsawg.

Phaj Dov (Ib Leeg Sib Dhos) rau Phab Ntsa Hnyav (600–1,600mm OD, 25–60mm WT):

● Ib daim hlau ib daim dov rau hauv ib lub tog raj kheej siv lub tshuab khoov 3- lossis 4-yob

● Cov xov ntev txuas nrog SAW (ntau txoj kev hla, feem ntau yog ob sab)

● Tsis muaj kev nthuav dav ntawm lub cev (qhov puag ncig yog ua tiav los ntawm kev dov qhov tseeb)

● Haum rau cov kav dej tuab uas cov cuab yeej JCOE/UOE muaj tsawg

● Feem ntau xav tau PWHT (kev txo kev ntxhov siab) kom tau raws li qhov yuav tsum tau ua kom tawv rau kev pabcuam qaub.

Phaj Dov (Ob Chav Sib Dhos) rau Phab Ntsa Hnyav / Txoj Kab Uas Loj Heev (1,000–2,000mm OD, 25–80mm WT):

Ob lub phaj dov ua ib nrab-lub tog raj kheej thiab vuam raws ob txoj kab sib txuas ntev

Feem ntau siv rau cov kav dej siab, cov kav dej, thiab cov chav dej loj.

Tag nrho cov welds 100% UT thiab RT tshuaj xyuas.

Kev Kho Mob Kub Tom Qab Weld (PWHT):Rau cov phab ntsa tuab > 32 hli lossis rau kev pabcuam qaub (H₂S), Womic muab kev kho cua sov uas txo kev ntxhov siab hauv lub cub tawg hauv qab tsheb lossis siv cov cua sov induction hauv zos. Qhov nyuaj raug tswj kom ≤ 90 HRB (lossis ≤ 248 HV10).

7. Kev Tswj Xyuas Zoo & Cov Txheej Txheem Ntsuas rau API 5L X42 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 kev txwv X42	Tag nrho
Phaj	Ultrasonic (Kev kuaj xyuas lamination)	Tshawb nrhiav qhov tsis zoo sab hauv	Tag nrho
Phaj	Tensile / Khoov	Kev txheeb xyuas tshuab	Tag nrho
Thaum lub sijhawm tsim	Qhov ntev (inch, oval)	Xyuas kom meej tias muaj kev sib npaug	Tag nrho
Weld seam	100% Tsis Siv Neeg UT (lossis PAUT)	Tshawb nrhiav tsis muaj fusion, slag, porosity	Tag nrho
Weld seam	RT (qhov chaw lossis tag nrho ntev raws li qhov tshwj xeeb)	Kev txheeb xyuas qhov zoo ntawm vuam	Tag nrho
Weld seam	MPI (ntiv taw thiab HAZ)	Cov kab nrib pleb ntawm qhov chaw	Tag nrho
Cov yeeb nkab tiav lawm	Kev Ntsuas Hydrostatic (ib API 5L)	Kev ua siab ncaj ncees	Tag nrho
Cov yeeb nkab tiav lawm	Charpy V-Notch (PSL2)	Kev tawv tawv kub qis (27J @ 0°C)	PSL2 xwb
Cov yeeb nkab tiav lawm	Qhov nyuaj (HRB / HV10)	Kev ua raws li kev pabcuam tsis zoo	PSL2 / qaub
Cov yeeb nkab tiav lawm	Kev Khoov / Flattening	Kev yoog tau	Tag nrho
Cov yeeb nkab tiav lawm	Pom thiab cim	Qhov xwm txheej ntawm qhov chaw, kev taug qab	Tag nrho

Xaiv tau rau kev pabcuam tseem ceeb:

● HIC ib NACE TM0284

● SSC ib NACE TM0177

● Qhov kub qis dua ntawm -20°C, -40°C lossis -60°C

● DWTT (Kev Ntsuas Qhov Hnyav Tear) rau kev tswj kev tawg ntawm qhov tawg

Kev kos duab tag nrho ntawm qhov chaw hla ntawm qhov nyuaj rau phab ntsa tuab

8. Cov Ntawv Thov Tseem Ceeb - API 5L X42 LSAW Cov Yeeb Nkab Hlau

● Cov tes hauj lwm sau roj - sau cov roj av los ntawm cov qhov dej mus rau cov chaw ua khoom (siab txog li 6 MPa)

● Cov kab ntws roj nyoos - kev thauj mus los luv luv los ntawm lub qhov dej mus rau lub manifold

● Cov kav dej txhaj - rov qab tau roj theem ob, dej siab (10–20 MPa)

● Cov caissons ntawm lub platform offshore - cov khoom tiv thaiv rau cov risers hauv thaj chaw dej txaws

● Cov kav dej Slurry - kev thauj cov hlau ore, tooj liab concentrate, tailings

● Choj thiab chaw nres nkoj piling - txoj kab uas hla loj dua, cov yeeb nkab phab ntsa hnyav rau lub hauv paus tob

● Cov kav dej ua haujlwm hauv kev lag luam - cov kav dej ua roj thiab cov kav dej petrochemical nruab nrab

● Cov phaj hlau (phaj hlau hnyav uas dov rau ntawm phab ntsa) - cov chaw tsim hluav taws xob siv dej

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

Ntim:

● Cov kab uas me me (≤ 24″): Cov pob khoom hexagonal, hlau khi nrog cov tiv thaiv ntug.

● Cov kav dej loj (> 24″): Cov kav dej ib leeg, sib cais los ntawm cov ntoo dunnage thiab cov roj hmab.

● Lub hau kawg: Lub hau yas lossis hlau uas ruaj khov (cov kawg uas nkhaus tau tiv thaiv).

● Kev tiv thaiv txheej: Rau cov kav dej 3LPE/FBE uas muaj txheej, txhua txheej sib cais nrog cov nplhaib ua npuas ncauj kom tiv thaiv kev puas tsuaj thaum thauj khoom hauv hiav txwv.

Txoj kev xa khoom:

● Cov nkoj thauj khoom loj rau >500 tons lossis cov kab uas hla loj

● Cov thawv 20ft/40ft rau cov thawv me me (ua ke)

● Cov txee tiaj tiaj lossis cov thawv qhib rau saum toj rau qhov ntev ntxiv (txog li 24m)

● Txhua yam khoom xa tuaj muaj cov ntaub ntawv pov thawj tag nrho: MTC (EN 10204 3.1 lossis 3.2), daim ntawv qhia txog kev sim dej, daim ntawv qhia UT/PAUT, daim ntawv pov thawj txheej (yog tias siv tau), daim ntawv teev cov khoom ntim khoom, daim ntawv them nqi lag luam, COO.

10. Cov txiaj ntsig ntawm Womic Steel & FAQ - API 5L X42 LSAW Steel Pipe

Vim li cas Womic Steel rau X42 LSAW?

●Peb txoj kev sib txuas ua ke (JCOE, UOE, dov phaj) uas npog ntau qhov ntau thiab tsawg

●Muaj peev xwm ua phab ntsa tuab txog li 60 hli (ib txoj kab sib txuas) lossis 80 hli (ob txoj kab sib txuas) rau kev txhaj dej siab thiab cov kav dej manifold

●PWHT chaw rau kev txo kev ntxhov siab ntawm phab ntsa tuab thiab cov kav dej qab zib

●API 5L Monogram + CE + kev tshuaj xyuas los ntawm lwm tus (SGS, BV, TÜV, DNV)

●Kev xa khoom sai (30-50 hnub ib txwm muaj)

●Qhov ntev txog li 24m txo qhov sib txuas ntawm thaj teb los ntawm 30–40%

Cov Lus Nug Feem Ntau:

Q: Thaum twg kuv yuav tsum xaiv UOE es tsis txhob JCOE rau X42?
A: UOE muaj qhov puag ncig zoo dua (±0.2% vs ±0.5% rau JCOE) thiab qis dua qhov kev ntxhov siab seem, ua rau nws nyiam rau cov kav dej tob hauv hiav txwv (subsea) thiab kev pabcuam qaub qhov twg qhov ruaj khov ntawm qhov siab sab nraud yog qhov tseem ceeb. JCOE pheej yig dua rau feem ntau ntawm cov haujlwm hauv hiav txwv.

Q: Koj puas ua tau X42 phab ntsa yeeb nkab hnyav dhau 50 hli?
A: Yog. Rau cov phab ntsa tuab ntawm 50mm txog 60mm, peb siv cov phaj dov ib leeg nrog PWHT. Rau 60–80mm, ob chav longitudinal seam. Cov no feem ntau yog siv rau cov kab txhaj dej ntawm 20–30 MPa lossis rau cov pas dej hydroelectric.

Q: Qhov txawv ntawm PSL1 thiab PSL2 rau X42 yog dab tsi?
A: PSL2 muaj cov kev txwv C, P, S nruj dua, yuav tsum muaj Charpy cuam tshuam (27J @ 0°C), qhov nyuaj siab tshaj plaws 90 HRB, thiab xav tau NDT ntau dua. Rau cov kab sau roj uas yuav muaj qhov kub thiab txias qis lossis H₂S, PSL2 raug pom zoo.

Q: Koj puas muab kev pabcuam qaub ncaug X42?
A: Yog. Peb muab X42 PSL2 nrog HIC xeem (NACE TM0284) thiab SSC (NACE TM0177). Cov qauv lees txais ib txwm muaj: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Peb tau muab kev pabcuam sour X42 rau Middle East thiab West Africa cov haujlwm.

Q: Koj ua li cas thiaj paub tseeb tias qhov zoo ntawm vuam rau cov kav dej tuab (40–60mm)?
A: Peb siv ntau-pass SAW nrog kev tswj cua sov kom raug, kev saib xyuas kub ntawm interpass, thiab 100% automated UT nrog lub sijhawm-ntawm-diffraction (TOFD) rau kev kuaj xyuas volumetric. PWHT yog siv los txo cov kev ntxhov siab seem.

Cov Lus Qhia Txog Qhov Project - West Africa Natural Gas Gathering Network

Lub Tebchaws:Nigeria (Niger Delta cheeb tsam)
Tus Qauv & Qib:API 5L X42 PSL2 (kev pabcuam qaub, kuaj HIC)
Qhov Loj & Qhov Ntau:

OD 508mm (20″) × WT 11.9mm – 12,000 meters (kwv yees li 1,800 tons) tsim los ntawm JCOE txheej txheem

OD 762mm (30″) × WT 19.0mm - 3,500 meters (kwv yees li 1,550 tons) tsim los ntawm cov phaj dov ib leeg nrog PWHT
Cov Lus Qhia:Txheej 3LPE sab nraud (2.8 hli tag nrho tuab), qhov kawg beveled 30° / 1.6 hli hauv paus ntsej muag, hydrotest ntawm 8.5 MPa (tsim siab 6.4 MPa). Yuav tsum muaj Charpy cuam tshuam ntawm 0°C (yam tsawg kawg nkaus 27J, ua tiav 65–90J). HIC ib NACE TM0284 Tshuaj A, 96h - cov qauv txais: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%.
Daim Ntawv Thov:Cov roj av sau los ntawm rau lub qhov dej mus rau qhov chaw ua haujlwm hauv nruab nrab hauv thaj av av noo Niger Delta. Cov kav dej phab ntsa hnyav 30″ tau siv rau lub taub hau tseem ceeb hla ib ntu av noo 1.2km, thaum cov kav dej JCOE 20″ tau ua haujlwm ua cov kab ceg.

Cov Kev Sib Tw thiab Kev Dais Teeb Meem:

●Kev hla dej ntws nrog cov yeeb nkab phab ntsa hnyav– Cov kav dej 30″ × 19.0mm (kwv yees li 355 kg/m2) yuav tsum tau teeb tsa hla ib lub pas dej uas muaj av nplaum mos heev. Cov nkoj thauj khoom ib txwm tsis tuaj yeem nkag mus rau qhov chaw. Womic Steel tau muab cov kav dej nrog cov pob qij txha ntev heev (18m es tsis yog 12m tus qauv) los txo cov lej ntawm cov vuam girth hauv thaj teb los ntawm 33%, txo qis kev vuam ntawm qhov chaw hauv cov xwm txheej nyuaj. Peb kuj tau muab cov lus qhia ntxaws txog kev nqa thiab kev tuav pov hwm suav nrog qhov sib nrug ntawm lub spreader beam.

●Kev ua raws li kev pabcuam qaub (muaj H₂S)– Cov roj uas muaj feem cuam tshuam muaj txog li 30 ppm H₂S. Womic tau ua qhov kev sim HIC ntawm ob lub kav dej 20″ JCOE thiab 30″ dov. Tag nrho cov qauv tau dhau los nrog CLR 0%, CTR 0%, CSR 0%. Rau lub kav dej 30″ (19mm WT), tus neeg siv khoom xav tau qhov nyuaj hauv qab 85 HRB (nruj dua li API 5L's 90 HRB). Womic tau siv cua sov induction hauv zos rau ntawm qhov txuas txuas kom ntseeg tau tias qhov nyuaj sib xws. Cov txiaj ntsig: hlau puag 78–82 HRB, txuas 80–85 HRB.

● Kev nplaum 3LPE txheej hauv cov av noo siab– Kev teeb tsa cov dej ntws txhais tau tias cov kav dej yuav raug muab tso rau hauv dej rau ntau lub lis piam ua ntej rov qab ntim. Tus qauv 3LPE tuaj yeem ntsib cathodic disbondation yog tias cov av noo tsis tswj tau. Womic tau siv cov txheej txheem hauv lub chaw ua haujlwm tswj huab cua (siab tshaj 60% RH) thiab ua tiav 100% kev kuaj pom hnub so ntawm 5kV. Lub zog tev tawv uas kuaj ntawm 25 ° C muab > 200 N / cm, zoo dua ISO 21809 qhov yuav tsum tau ua ntawm 100 N / cm.

●Logistics mus rau qhov chaw nyob deb– Cov kav dej tau raug xa los ntawm Shanghai mus rau Tin Can Island Port, Lagos, tom qab ntawd thauj khoom mus rau 380km mus rau Niger Delta qhov chaw. Cov xwm txheej ntawm txoj kev tsis zoo nrog kev txwv qhov hnyav. Womic tsim ib txoj kev npaj xa khoom siv 12m qhov ntev txheem rau 20″ cov kav dej (bundled) thiab 18m ib qho sib koom ua ke rau 30″ cov kav dej ntawm cov tsheb thauj khoom tiaj tus nrog cov tsheb thauj neeg. Tsis muaj kev puas tsuaj lossis khoov thaum lub sijhawm thauj mus los.

● Qhov Tshwm Sim:Lub network sau roj tau pib ua haujlwm hauv Q1 2024. Tag nrho 1,550 tons ntawm 30″ yeeb nkab thiab 1,800 tons ntawm 20″ yeeb nkab tau dhau qhov kev tshuaj xyuas sab nraud los ntawm SGS Nigeria. Tus neeg siv khoom tau tshaj tawm xoom qhov tsis zoo thaum lub sijhawm vuam girth, vim yog qhov sib xws bevel geometry thiab ovality tswj (≤ 0.3% rau JCOE yeeb nkab, ≤ 0.5% rau dov phaj yeeb nkab). Womic Steel tam sim no tau teev npe ua tus neeg muag khoom tau pom zoo rau tus neeg siv khoom yav tom ntej pipeline expansions.

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Womic Steel - Koj tus khub txhim khu kev qha rau API 5L X42 LSAW kav dej rau kev sau cov roj nruab nrab, kev txhaj dej, thiab cov ntawv thov kev pabcuam qaub.

Yav dhau los: API 5L GR.B LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom

Tom ntej no: API 5L X52 LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom