API 5L X65 PSL2 Sour Service LSAW Steel Pipe: Kev Muaj Peev Xwm Tsim Khoom & Cov Khoom Qhia Tshwj Xeeb Duab Tshwj Xeeb

API 5L X65 PSL2 Sour Service LSAW Steel Pipe: 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 PSL2 sour service LSAW zoo rau kev xa roj thiab roj av hauv cov chaw muaj H₂S siab. X65 PSL2 nrog daim ntawv pov thawj sour service muab qhov tsawg kawg nkaus ntawm 450 MPa (65,300 psi) ua ke nrog cov kev txwv nruj (≤ 85 HRB ib txwm), cov pa roj carbon tsawg (CEV ≤ 0.40%), thiab lav qhov tsis kam rau hydrogen induced cracking (HIC) thiab sulfide stress cracking (SSC). Cov txheej txheem LSAW suav nrog JCOE, UOE, thiab dov phaj vuam txoj kev, nrog rau kev kho cua sov tom qab vuam (PWHT) rau txhua cov yeeb nkab sour service tsis hais txog phab ntsa tuab. Sab nraud txoj kab uas hla los ntawm 219mm txog 1,600mm (8″ - 63″), phab ntsa tuab los ntawm 6.0mm txog 60mm, ntev txog 24m. Daim ntawv pov thawj zeb nrog EN 10204 3.2, 100% kev kuaj ultrasonic nrog TOFD, kev kuaj hydro, beveled ends, thiab pob ntawv pov thawj kev pabcuam tag nrho (HIC, SSC, hardness traverses). Haum rau cov kav dej roj siab siab, kev xa roj thiab roj av hauv hiav txwv, cov kav dej roj av, thiab kev txhaj tshuaj roj acidic.

LSAW Hlau Yeeb Nkab Loj:Sab Nraud Txoj Kab uas hla: 219mm – 1,600mm (8″ – 63″), Phab Ntsa Thickness: 6.0mm – 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 X65 PSL2 nrog rau cov kev cai ntxiv rau kev pabcuam qaub raws li NACE MR0175/ISO 15156; HIC raws li NACE TM0284; SSC raws li NACE TM0177; kuj ua tau raws li DNV-OS-F101 kev pabcuam qaub ntxiv

Kev siv LSAW Steel Pipe:Cov kav dej roj av siab siab (txog li 15 MPa), cov kav dej roj av tob hauv hiav txwv, cov kav dej kho dej thiab amine hauv chaw ua roj refinery, cov qhov dej txhaj roj acid, cov kav roj nqa hauv cov teb av, cov kav dej sib xyaw CO₂-H₂S, cov kav dej rov qab sulfur

Womic Steel muab cov khoom zoo thiab cov nqi sib tw ntawm API 5L X65 PSL2 sour service LSAW steel yeeb nkab, HIC kuaj kab yeeb nkab, SSC resistant yeeb nkab, NACE ua raws li lub zog siab yeeb nkab. Daim ntawv pov thawj zeb EN 10204 3.2, hydro test, UT/TOFD, PWHT, beveled end, 3LPE/FBE txheej muaj. Lub Hoobkas ncaj qha muab rau cov roj sour thiab cov haujlwm roj 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 rau X65 Sour Service

Womic Steel Group ua haujlwm cov kab ntau lawm rau cov kav dej LSAW uas muaj zog heev. X65 cov kev pabcuam uas muaj zog heev yog qhov nyuaj dua li X52 vim muaj zog dua thiab cov kev cai nruj dua. Cov kev tswj tseem ceeb suav nrog:

● Cov pa roj carbon tsawg sib npaug (CEV ≤ 0.40%, feem ntau ≤ 0.38%)

● Muaj cov leej faj tsawg heev (S ≤ 0.0015%) thiab cov phosphorus tsawg (P ≤ 0.015%)

● Kev kho calcium rau kev tswj cov duab ntawm cov khoom (Ca/S piv ≥ 1.5)

● Cov phaj txias kom nrawm dua (TMCP) kom ua tiav cov qauv ferrite acicular

● Kev kho cua sov tom qab vuam (PWHT) rau txhua lub kav dej, tsis hais phab ntsa tuab npaum li cas los xij

● Kev sim qhov nyuaj 100% (weld, HAZ, hlau puag) - lub hom phiaj ≤ 85 HRB

● Kev kuaj HIC thiab SSC raws li cov qauv NACE uas tsis muaj kev lees txais qhov tawg rau ntau qhov project

Cov txheej txheem tsim khoom: JCOE, UOE (nyiam dua vim muaj kev ntxhov siab tsawg dua), phaj dov, txhua yam nrog PWHT yuav tsum tau ua hauv lub cub tawg hauv qab tsheb (ntev 12m, 600 ° C ± 10 ° C). Kev tshuaj xyuas sab nraud los ntawm SGS, BV, TÜV, DNV, ABS, lossis LR rau daim ntawv pov thawj kev pabcuam tag nrho.

Kev pabcuam sour txhua xyoo X65 LSAW muaj peev xwm:25,000 tons.

Kev Yooj Yim Tsim Khoom rau X65 Sour Service:

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

● UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m (nyiam dua rau qaub vim muaj kev ntxhov siab tsawg dua)

● Phaj dov: 600–1,600mm OD × 25–60mm WT × ≤ 12m

● PWHT siv rau txhua lub yeeb nkab (ntub 600°C ± 10°C, tuav 1 teev rau txhua 25 hli tuab, txias qeeb ≤ 200°C/teev)

2. API 5L X65 PSL2 Kev Pabcuam Qab Zib: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo

Rau X65 sour kev pabcuam, chemistry yog nruj dua li tus qauv PSL2 thiab kuj nruj dua li X52 sour. Lub hom phiaj yog kom ua tiav lub zog siab (450 MPa yield) thaum tswj hwm HIC thiab SSC zoo heev.

Cov Tshuaj Lom Zem (Kev Tshawb Fawb Txog Ladle, cov hom phiaj ib txwm muaj rau kev pabcuam qaub):

Khoom	Tus qauv PSL2 siab tshaj plaws	X65 Sour Service Target (Womic)
C	0.12	≤ 0.08 (feem ntau 0.05-0.07)
Mn	1.60	≤ 1.40 (feem ntau yog 1.20-1.35)
P	0.025	≤ 0.015
S	0.015	≤ 0.0015 (0.0010 feem pua)
Si	0.45	0.20-0.35
V	0.10	≤ 0.06
Nb	0.05	0.04-0.07
Ti	0.04	≤ 0.025
Mo	Tsis tau teev tseg	≤ 0.30 (rau qaub, feem ntau 0.15-0.25)
Ni	Tsis tau teev tseg	≤ 0.50 (xaiv tau rau qhov kub qis)
CEV	≤ 0.43	≤ 0.40 (feem ntau ≤ 0.38)
Pcm	≤ 0.25	≤ 0.22

Kev kho calcium (Ca/S piv ≥ 1.5) ua kom muaj cov sulfide globular. Kev ntxiv molybdenum txhim kho kev tiv taus SSC ntawm cov qib siab dua.

Cov Khoom Siv Kho Tshuab (Tom qab PWHT):

Vaj tse	X65 PSL2 Kev Pabcuam Qab Zib (Womic)
Lub Zog Tawm (min)	450 MPa (65,300 psi)
Lub Zog Tawm (max)	570 MPa (82,700 psi)
Lub zog Tensile (min)	535 MPa (77,600 psi)
Kev ntev (min)	19%
Qhov nyuaj (siab tshaj plaws)-ntau yam project	85 HRB (Womic ua tiav 78-85 HRB)
Kev Cuam Tshuam Toughness @ -20 ° C (yeem xaiv tau)	≥ 27 J (feem ntau 80-150 J)
Kev Nyuaj Siab Thaum Cuam Tshuam @ -46 ° C (yeem xaiv tau)	≥ 27 J (feem ntau yog 60-100 J)

Yuav Tsum Tau Kuaj Xyuas Rau X65 Sour Service:

● HIC ib NACE TM0284 (Kev daws teeb meem A, 96h)-kev lees txais: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% (ntau qhov project xav tau 0%)

● SSC ib NACE TM0177 (Txoj Kev A, 720h, 90% SMYS)-tsis muaj kev tawg

● Qhov nyuaj hla hla qhov vuam, HAZ, thiab cov hlau puag (siab tshaj 85 HRB)

● Charpy V-Notch ntawm 0°C lossis qis dua (feem ntau 27 J min)

● DWTT (rau kev tswj kev tawg, yog tias tau teev tseg)

3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv

Khoom	Cov Lus Qhia Tshwj Xeeb
Tus Qauv	API 5L PSL2 nrog cov kev pabcuam qaub ntxiv
NACE	NACE MR0175 / ISO 15156 (tsab tshiab tshaj plaws)
Cov Txheej Txheem Tsim Khoom	JCOE, UOE, phaj dov (tag nrho nrog PWHT)
Sab Nraud Txoj Kab uas hla	219 hli-1,600 hli (8″)-63″)
Phab ntsa tuab ntau yam	6.0 hli-60 hli (JCOE/UOE siab tshaj 50.8 hli, phaj dov siab tshaj 60 hli)
Qhov Ntev Ntau	6m -18m tus qauv; txog li 24m (UOE)
Xaus tiav	Beveled End (BE) ib API 5L
Qhov Chaw Tiav	Liab qab, 3LPE, 3LPP, FBE (cov txheej txheem yuav tsum tau ua kom tsis muaj zog)
Kev kam rau siab	OD: ±0.5%; WT: -0% / +15%; Ntev: +50mm / -0mm

4. Qhov Loj & Cov Lus Qhia Muaj - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

OD (hli)	Kev Xaiv WT (hli)	Txheej Txheem	Kwv yees li qhov hnyav (kg / m2)	Tus Qauv Ntev	Cov yam ntxwv ntawm kev pabcuam qaub
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6-63.6	12m	PWHT, HIC kuaj xyuas
273	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	52.3-101.5	12m / 18m	Kev Nyuaj Siab ≤ 85 HRB
324	10.0, 12.5, 14.0, 16.0, 19.0	JCOE	77.4-142.8	12m / 18m	CEV ≤ 0.40, Mo ntxiv
406	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	JCOE/UOE	97.7-208.4	12m / 18m	SSC tau kuaj xyuas
508	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	UOE	152.7-302.3	12m / 18m / 24m	Tag nrho cov hardness traverse
610	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	205.8-401.8	12m / 18m / 24m	HIC CLR 0% feem ntau
711	16.0, 19.0, 22.0, 25.4, 28.0, 31.8	UOE/JCOE	274.3-532.9	12m / 18m	Yuav tsum muaj PWHT
813	19.0, 22.0, 25.4, 30.0, 32.0, 35.0	JCOE	372.1-671.4	12m / 18m	NACE MR0175
914	22.0, 25.4, 30.0, 35.0, 38.0, 40.0	JCOE/Kuav	484.3-862.0	12m	Qis S (≤ 0.0015%)
1,016	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Dov	619.9-1,191.7	12m	Kho Ca, Mo txog li 0.25%
1,220	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Dov	880.9-1,577.8	12m	Dej qab zib tob

Txhua lub kav dej X65 sour tau txais PWHT tsis hais txog phab ntsa tuab npaum li cas. UOE yog qhov zoo dua rau cov txoj kab uas hla ≤ 1,220mm vim muaj kev tswj hwm kev ntxhov siab zoo dua.

5. Cov Qauv Siv Rau Cov Yeeb Nkab Uas Muaj Zog Siab

Tus Qauv	Daim Ntawv Thov	Cov Kev Cai Rau Kev Xeem
API 5L PSL2 + Annex H	Cov yeeb nkab kab kev pabcuam qaub	HIC, SSC, qhov nyuaj ≤ 90 HRB
NACE MR0175 / ISO 15156	Cov ntaub ntawv rau H₂S ib puag ncig	Cov kev txwv ntawm qhov nyuaj, chemistry
NACE TM0284	Txoj kev kuaj HIC	CLR, CTR, CSR
NACE TM0177	Txoj kev xeem SSC (Txoj Kev A, B, C, D)	Tsis muaj kev tawg
DNV-OS-F101 (ntxiv qab zib)	Cov kav dej hiav txwv	Ntxiv CTOD thiab qaug zog
Plhaub DEP 31.40.30.31	Kev pabcuam dej qab zib tob	Qhov nyuaj dua (≤ 85 HRB)

Kev siv luv luv:Cov kav dej roj qaub siab, cov kav dej roj qaub tob, kev pabcuam kua qaub hauv hiav txwv, dej qaub hauv chaw ua roj refinery, cov chav amine, kev txhaj roj qaub, CCS nrog H₂S.

6. Cov Txheej Txheem Tsim Khoom - LSAW rau X65 PSL2 Sour Service

Kev pabcuam X65 qaub ncaug xav tau cov phaj TMCP siab heev thiab kev tswj hwm cov txheej txheem nruj heev.

Kev Xaiv Phaj:

● Cov pa roj carbon tsawg (≤ 0.08%), cov manganese tsawg (≤ 1.40%), cov sulfur tsawg heev (≤ 0.0015%)

● Kho Calcium (Ca/S ≥ 1.5)

● Ntxiv Mo (0.15-0.25%) rau kev tiv thaiv SSC

● TMCP nrog kev txias sai-acicular ferrite microstructure

Cov Kauj Ruam Tshwj Xeeb rau Kev Tsim JCOE / UOE + Qaub:

●Kev txiav ntug -Kev Ntsuas ± 0.5 hli, J bevel rau kev nkag mus zoo dua.

●Kev tsim -UOE nyiam dua (kev ntxhov siab seem tsawg dua). JCOE siv tau rau ntawm ntug dej hiav txwv.

●SAW vuam -Cov cua sov nkag ≤ 2.2 kJ/mm (qis dua tus qauv). Qhov kub ntawm qhov nkag ≤ 150°C.

●100% UT nrog TOFD -Muaj kev nkag siab ntau dua li tus qauv UT.

●Kev Kho Mob Kub Tom Qab Weld (PWHT) -Yuav tsum tau ua txhua yam kev pabcuam qaub X65. Muab tsau rau ntawm 580-600°C (kub qis dua X52 kom tsis txhob poob zog). Tuav 1 teev rau txhua 25 hli tuab. Lub cub kom txias ntawm ≤ 150°C ib teev.

●Kev nthuav dav ntawm lub tshuab (UOE) -Txwv rau 0.5-0.8% (vs 1.5% rau tus qauv) kom tsis txhob ua kom tawv thaum ua haujlwm txias.

●Kev kuaj qhov nyuaj -Peb txoj kab hla tag nrho rau ib lub yeeb nkab (hlau puag, HAZ, kab txuas nruab nrab). Siab tshaj plaws 85 HRB.

●Kev kuaj HIC -Raws li NACE TM0284 Cov Tshuaj A, 96 teev. Cov qauv los ntawm cov yeeb nkab kawg.

●Kev kuaj xyuas SSC -Raws li NACE TM0177 Txoj Kev A, 720 teev ntawm 90% SMYS.

Cov Kev Ntsuas Rauv PWHT Rau X65 Sour:

● Kub: 590°C ± 10°C (qis dua rau X52 kom khaws tau lub zog)

● Lub sijhawm tsau: 1 teev rau txhua 25 hli (yam tsawg kawg 1 teev)

● Tus nqi txias: ≤ 150°C ib teev los ntawm 590°C txog 300°C

● Ntau lub thermocouples ntawm qhov chaw ntawm cov yeeb nkab

7. Kev Tswj Xyuas Zoo & Kev Ntsuas rau X65 Sour Service LSAW

Theem	Kev Tshuaj Xyuas	Cov Qauv Txais Yuav
Phaj	Tshuaj lom neeg (OES)	C ≤ 0.08, S ≤ 0.0015%, CEV ≤ 0.38, Mo 0.15-0.25%
Phaj	Ultrasonic (lamination)	Tsis muaj laminations > 3mm
Phaj	Tensile + Charpy ntawm -20 ° C	Cov txiaj ntsig ≥ 450 MPa, CVN ≥ 50J
Kev vuam	100% UT nrog TOFD	Tsis muaj qhov qhia txog > 1.6 hli
Kev vuam	RT (yam tsawg kawg nkaus 10%)	Tsis muaj kab nrib pleb, tsis muaj kev sib xyaw ua ke
Tom qab PWHT	Qhov nyuaj (HRB)-BM, Weld, HAZ	≤ 85 HRB (txhua thaj tsam)
Ua tiav lawm	HIC (NACE TM0284)	CLR ≤ 2% (feem ntau 0%), CTR ≤ 1%, CSR ≤ 0.5%
Ua tiav lawm	SSC (NACE TM0177 Txoj Kev A, 720h)	Tsis muaj kev tawg
Ua tiav lawm	Charpy @ -20°C lossis qis dua	≥ 27 J (min), raug 80-150 J
Ua tiav lawm	Tensile	Tawm los 450-570 MPa, Tensile ≥ 535 MPa
Ua tiav lawm	Kev Ntsuas Hydrostatic	90-100% SMYS

Cov ntaub ntawv pov thawj muaj xws li: MTC Hom 3.2, PWHT daim ntawv qhia, daim ntawv qhia qhov nyuaj, HIC thiab SSC cov ntawv qhia, UT/TOFD cov cav, daim ntawv pov thawj kuaj dej.

8. Cov Ntawv Thov Tseem Ceeb - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

●Cov kab hluav taws xob siab siab -Kev sib kis mus deb ntawm 10-15 MPa nrog H₂S txog li 50 ppm

● Cov kav dej roj av tob hauv hiav txwv -Cov kab dej hauv qab dej hiav txwv hauv H₂S ib puag ncig (UOE + CTOD kev sim)

● Cov kab dej roj nyoos qaub -Cov kav dej siab los ntawm cov qhov dej mus rau cov chaw hauv nruab nrab

● Cov kav dej qaub ntawm lub chaw ua roj refinery -Kev pabcuam Ammonium bisulfide thiab H₂S (kub siab)

● Cov kav dej kho amine -Cov amine nplua nuj thiab tsis muaj roj (H₂S thiab CO₂)

● Cov qhov dej txhaj roj acid -Rov txhaj cov khoom sib xyaw H₂S/CO₂ rau hauv thaj chaw pov tseg

● Cov kav roj nqa -Kev txhaj tshuaj roj qaub rau kev tsa khoom cuav

● Cov kav dej CCS uas muaj H₂S impurity -Kev ntes thiab khaws cia cov pa roj carbon uas cov dej CO₂ muaj H₂S

9. Ntim & Xa Khoom - X65 Sour Service LSAW Yeeb Nkab

Ib yam li cov ntawv ntim LSAW txheem nrog kev tiv thaiv zoo dua (pom zoo kom tsis txhob muaj kuab paug). Cov ntaub ntawv suav nrog cov ntaub ntawv zoo ntawm kev pabcuam qaub ncaug ntxiv rau cov ntaub ntawv xa khoom txheem.

10. Cov txiaj ntsig ntawm Womic Steel & FAQ - X65 PSL2 Sour Service LSAW

Vim li cas Womic Steel rau X65 Sour Service?

● Lub cub tawg PWHT tshwj xeeb (ntev 12m) nrog kev tswj qhov kub thiab txias kom meej (590°C ± 10°C)

● Kev kuaj HIC thiab SSC hauv tsev (chaw kuaj mob CNAS tau lees paub)

● Cov phaj Mo-alloyed rau kev tiv taus SSC zoo dua

● Cov txheej txheem UOE rau kev ntxhov siab seem qis dua (nyiam dua rau cov dej tob qaub)

● Muaj kev kuaj xyuas qaub ncaug los ntawm cov neeg sab nraud (SGS, BV, TÜV, DNV)

● Muaj cov kav dej X65 sour service ntau tshaj 300 km thoob ntiaj teb.

Cov Lus Nug Feem Ntau:

Q: Qhov txawv ntawm X52 qaub thiab X65 qaub kev pabcuam yog dab tsi?
A: X65 kev pabcuam qaub ncaug yog qhov xav tau ntau dua. X65 xav tau lub zog siab dua (450 vs 360 MPa cov txiaj ntsig) thaum tswj hwm tib yam lossis nruj dua qhov txwv hardness (≤ 85 HRB). Qhov no xav tau Mo ntxiv (0.15-0.25%), kev tswj hwm CEV nruj dua (≤ 0.38% vs ≤ 0.40%), thiab feem ntau qis dua PWHT kub (590 ° C vs 600 ° C) kom tsis txhob poob lub zog. X65 feem ntau yog teev rau cov kav dej siab dua (> 10 MPa) thiab cov ntawv thov dej tob hauv hiav txwv.

Q: Puas yog PWHT yuav tsum muaj rau txhua lub kav dej X65 tsis hais txog phab ntsa tuab npaum li cas?
A: Yog, ib qho NACE MR0175 thiab txhua qhov kev qhia tshwj xeeb ntawm tus neeg teb xov tooj. Txawm tias rau 6.4 hli WT kav dej, PWHT yuav tsum tau ua kom tiav qhov nyuaj ≤ 85 HRB thiab kom txo cov kev ntxhov siab seem. Womic siv PWHT rau 100% ntawm cov kav dej X65 uas tsis muaj zog.

Q: Cov qauv lees txais HIC rau X65 kev pabcuam qaub ncaug yog dab tsi?
A: NACE TM0284 tso cai rau CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Txawm li cas los xij, feem ntau cov dej tob thiab cov haujlwm siab-kev ncaj ncees xav tau CLR = 0% (tsis muaj kab nrib pleb). Womic's ultra-low sulfur plates (S ≤ 0.0015%) thiab kev kho calcium ua tiav CLR 0% tas li.

Q: Cov kav dej X65 puas siv tau rau hauv thaj chaw arctic lossis qhov kub qis?
A: Yog, nrog rau kev sim Charpy qhov kub qis ntxiv. Womic tuaj yeem muab X65 qhov kev pabcuam qaub nrog kev sim cuam tshuam ntawm -20 ° C, -40 ° C, lossis -46 ° C (tsawg kawg 27 J). Rau kev pabcuam qaub arctic, peb kuj muab DWTT (≥ 85% shear cheeb tsam ntawm qhov kub sim). Nco ntsoov tias qhov kub qis thiab kev pabcuam qaub ua ke yuav tsum tau ua tib zoo tsim cov hlau alloy (Ni ntxiv, CEV qis). Thov muab koj qhov kub ua haujlwm thiab H₂S ib nrab siab rau kev ntsuam xyuas kev tsim nyog.

Q: Qhov siab tshaj plaws ntawm H₂S ib nrab rau X65 kev pabcuam qaub yog dab tsi?
A: Ib qho NACE MR0175, X65 yog qhov tsim nyog rau kev pabcuam qaub ncaug txog li 0.3 psi (0.02 bar) H₂S ib nrab siab. Rau qhov siab dua ib nrab siab dua (piv txwv li, 0.5-1.0 psi), yuav tsum muaj kev tsim nyog ntxiv (HIC nrog pH qis dua, SSC ntawm kev ntxhov siab siab dua). Womic tau tsim nyog X65 rau H₂S ib nrab siab txog li 1.0 bar rau cov haujlwm tshwj xeeb. Thov qhia koj cov xwm txheej ua haujlwm.

Q: Lub sijhawm ua khoom siv rau X65 sour service LSAW yog dab tsi?
A: 80-120 hnub, nyob ntawm seb Mo-alloyed phaj puas muaj (lub sijhawm ua ntej 8-12 lub lis piam) thiab HIC/SSC kuaj (4-6 lub lis piam). Kev txiav txim sai (60-90 hnub) ua tau yog tias cov phaj muaj nyob hauv Tshuag. Kev kuaj pom los ntawm cov neeg thib peb ntxiv 1-2 lub lis piam.

Q: Koj puas muab kev kuaj CTOD rau cov nkoj X65 sour risers hauv hiav txwv?
A: Yog. Peb ua qhov kev sim CTOD (Crack Tip Opening Displacement) raws li BS 7448 lossis ASTM E1820 ntawm qhov kub thiab txias uas tau teev tseg (feem ntau yog -20°C lossis -46°C). Cov nqi CTOD tsawg kawg nkaus: hlau vuam ≥ 0.25mm, HAZ ≥ 0.30mm. Peb tau muab cov kav dej X65 uas tau kuaj CTOD rau cov haujlwm dej tob hauv Hiav Txwv North thiab Gulf of Mexico.

Kev Siv Ua Haujlwm-North West Shelf Sour Gas Pipeline (Australia)

Lub Tebchaws:Australia (Western Australia, North West Shelf)
Tus Qauv & Qib:API 5L X65 PSL2 nrog rau kev pabcuam qaub ntxiv raws li NACE MR0175; ntxiv CTOD thiab qhov yuav tsum tau ua kom sov qis
Qhov Loj & Qhov Ntau:

● Qhov Loj 610mm (24″) × Qhov Hnyav 15.9mm-45,000 meters (kwv yees li 9,200 tons) tsim los ntawm UOE txheej txheem

● OD 610mm (24 ") × WT 19.0mm-12,000 meters (kwv yees li 2,800 tons) tsim los ntawm UOE txheej txheem (phab ntsa tuab dua rau ntu riser)

● Qhov Loj 813mm (32″) × Qhov Hnyav 22.2mm-8,000 meters (kwv yees li 3,100 tons) tsim los ntawm JCOE txheej txheem (seem ntawm ntug dej hiav txwv)
Tag Nrho:65,000 meters (65 km), kwv yees li 15,100 tons

Cov Lus Qhia:Txheej sab nraud 3LPP (3.5 hli) rau qhov kub siab (95°C), qhov kawg beveled 30°/1.6 hli, hydrotest ntawm 18.0 MPa (tsim siab 12.5 MPa). Yuav tsum muaj Charpy impact ntawm -20°C (yam tsawg kawg nkaus 50J, ua tiav 100-160J). CTOD ntawm -20°C: weld hlau ≥ 0.25mm, HAZ ≥ 0.30mm (ua tiav 0.35-0.55mm). HIC ib NACE TM0284 Solution A, 96h-kev lees txais: CLR = 0%, CTR = 0%, CSR = 0%. SSC ib NACE TM0177 Txoj Kev A, 720 teev ntawm 90% SMYS-tsis muaj kev tawg. Qhov nyuaj siab tshaj plaws 85 HRB. PWHT siv rau txhua lub kav dej (ntub 590 ° C ± 10 ° C, 1.5 teev). 100% UT nrog TOFD ntxiv rau 20% RT. Kev tshuaj xyuas thib peb los ntawm DNV Australia.

Daim Ntawv Thov:Cov kav dej roj qaub thauj cov roj av los ntawm cov teb hauv hiav txwv (nrog H₂S cov ntsiab lus ntawm 15-25 ppm) mus rau lub Hoobkas LNG hauv hiav txwv. Cov kav dej 65 km suav nrog ntu dej tob hauv qab hiav txwv (qhov tob ntawm dej 200-300m) thiab ntu ntug dej hiav txwv hla cov av corrosive. Cov kav dej ua haujlwm ntawm 95 ° C thiab 12.5 MPa.

Cov Kev Sib Tw thiab Kev Dais Teeb Meem:

● Kub siab (95°C) ua ke nrog kev pabcuam qaub -Feem ntau cov kav dej kev pabcuam qaub ncaug ua haujlwm hauv qab 80 ° C. Ntawm 95 ° C, NACE MR0175 tsim cov kev txwv nruj dua rau qhov nyuaj thiab kev xaiv cov khoom siv. Womic xaiv Mo-alloyed phaj (Mo 0.20-0.25%) thiab siv 3LPP txheej (polypropylene, ntsuas rau 120 ° C) es tsis txhob 3LPE (txwv rau 80 ° C). PWHT kub tau txo qis rau 580 ° C kom tsis txhob kub dhau. Qhov nyuaj tom qab PWHT: hlau puag 78-82 HRB, vuam 80-84 HRB-zoo nyob rau hauv qhov txwv.

● Qhov yuav tsum tau muaj HIC tsis tawg -Tus neeg siv khoom xav tau CLR = 0% (tsis muaj HIC tawg). Womic siv cov phaj sulfur tsawg heev (S ≤ 0.0008%) nrog Ca/S piv 2.2. Tom qab PWHT, HIC kuaj ntawm 20 tus qauv (4 ib qho cua sov) qhia CLR 0%, CTR 0%, CSR 0%. Kev tshuaj xyuas microstructure qhia tsuas yog globular sulfides (tsis muaj elongated MnS).

● CTOD tawg toughness rau offshore riser -Qhov seem riser (12 km) xav tau kev sim CTOD ntawm -20 ° C. Womic ua CTOD ntawm cov hlau vuam thiab HAZ. Cov txiaj ntsig: vuam hlau 0.40-0.55mm, HAZ 0.45-0.70mm (siab dua 0.25mm/0.30mm). Peb kuj tau muab cov lus qhia txog kev tsim nyog ntawm cov txheej txheem vuam (WPQ) rau kev vuam girth teb.

● Kev nplaum txheej kub siab (3LPP) -3LPP txheej yuav tsum tau FBE primer (epoxy) thiab polypropylene txheej sab saud. Womic thov txheej hauv lub chaw ua haujlwm tswj huab cua. Lub zog tev ntawm 95 ° C ntsuas ntawm 75 N / cm (yam tsawg kawg nkaus 50 N / cm). Cathodic disbondment ntawm 95 ° C tom qab 28 hnub: ≤ 6mm radius.

● Kev xa khoom mus rau thaj chaw deb ntawm Western Australia -Cov kav dej tau raug xa los ntawm Shanghai mus rau Dampier chaw nres nkoj (Western Australia) los ntawm lub nkoj tawg-tawg (kev caij nkoj 28 hnub). Vim yog lub caij cua daj cua dub, ob qho kev xa khoom tau raug ncua. Womic tau kho lub sijhawm tsim khoom kom sib sau ua ke cov khoom xa tuaj thiab zam kev ncua sijhawm. Tag nrho 15,100 tons tau xa tuaj rau hauv lub qhov rais project.

● Qhov Tshwm Sim:Cov kav dej roj sour tau pib ua haujlwm hauv Q1 2025. Tom qab 18 lub hlis ntawm kev ua haujlwm, kev tshuaj xyuas hauv kab (ILI) tsis pom muaj qhov tsis zoo cuam tshuam nrog HIC lossis SSC. Tus neeg ua haujlwm tau pom zoo Womic Steel ua tus neeg muab khoom tsim nyog rau cov haujlwm nthuav dav roj sour yav tom ntej hauv North West Shelf.

Tiv tauj:
Lub Vas Sab: www.womicsteel.com
Email: sales@womicsteel.com

Xov tooj / WhatsApp / WeChat:
Victor: +86 15575100681
Nkaus: +86 18390957568

Womic Steel-Koj tus khub txhim khu kev qha rau API 5L X65 PSL2 kev pabcuam LSAW steel kav rau cov kab roj siab siab, cov kav dej tob hauv dej hiav txwv, thiab cov ntawv thov kev pabcuam acidic thoob ntiaj teb.

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

Tom ntej no: API 5L X70 LSAW Cov Yeeb Nkab Hlau: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom