Adeegga Dhadhanka API 5L X65 PSL2 Tuubada Birta LSAW: Awoodaha Wax Soo Saarka & Tilmaamaha Badeecada Sawirka La Soo Bandhigay

Adeegga Dhadhanka API 5L X65 PSL2 Tuubooyinka Birta LSAW: Awoodaha Wax Soo Saarka & Tilmaamaha Badeecada

Sharaxaad Gaaban:

Womic Steel waxay bixisaa adeeg tayo sare leh oo ah API 5L X65 PSL2 oo ah tuubo bir ah oo tayo sare leh oo LSAW ah si loogu gudbiyo saliidda iyo gaaska ee baahida badan ee deegaannada ay ku jiraan H₂S (dhadhanka) cadaadiska sare leh. X65 PSL2 oo leh shahaadada adeegga dhanaan waxay bixisaa xoogga wax soo saarka ugu yar ee 450 MPa (65,300 psi) oo lagu daray xadka adag ee adag (≤ 85 HRB caadiga ah), u dhiganta kaarboon yar (CEV ≤ 0.40%), iyo iska caabin la hubo oo ku wajahan dildilaaca hydrogen-ka ee keena (HIC) iyo dildilaaca cadaadiska sulfide (SSC). Habka LSAW waxaa ka mid ah JCOE, UOE, iyo hababka alxanka saxanka ee la duubay, iyadoo la raacayo daaweynta kulaylka ka dib alxanka (PWHT) dhammaan tuubooyinka adeegga dhanaan iyadoon loo eegin dhumucda derbiga. Dhexroorka dibadda laga bilaabo 219mm ilaa 1,600mm (8″ – 63″), dhumucda derbiga laga bilaabo 6.0mm ilaa 60mm, dherer ilaa 24m. Shahaadada warshadda oo leh EN 10204 3.2, 100% tijaabinta ultrasonic oo leh TOFD, tijaabada hydro, dhammaadka godan, iyo xirmo dukumenti adeeg dhanaan oo dhammaystiran (HIC, SSC, marinnada adag). Ku habboon dhuumaha gaaska dhanaan ee cadaadiska sare leh, gudbinta saliidda dhanaan iyo gaaska badda, khadadka biyaha dhanaan ee warshadda sifeynta, iyo duritaanka gaaska aashitada.

Cabbirka Tuubada Birta ah ee LSAW:Dhexroorka Dibadda: 219mm – 1,600mm (8″ – 63″), Dhumucda Darbiga: 6.0mm – 60.0mm (JCOE/UOE ugu badnaan 50.8mm, saxanka la duubay ugu badnaan 60mm), Dhererka: 6m – 18m caadi ah, dherer gaar ah ilaa 24m

Heerka & Heerka Tuubooyinka Birta ah ee LSAW:API 5L X65 PSL2 oo leh shuruudo adeeg dhanaan oo dheeraad ah sida ku cad NACE MR0175/ISO 15156; HIC halkii NACE TM0284; SSC halkii NACE TM0177; sidoo kale waxay buuxisaa kabka adeegga dhanaan ee DNV-OS-F101

Isticmaalka Tuubooyinka Birta ah ee LSAW:Khadadka gaaska dabiiciga ah ee dhanaan oo cadaadis sare leh (ilaa 15 MPa), dhuumaha saliidda dhanaan ee badda, sifeynta biyaha dhanaan iyo khadadka daaweynta amine, ceelasha duritaanka gaaska aashitada, khadadka kor u qaadista gaaska ee beeraha dhanaan, dhuumaha adeegga isku dhafan ee CO₂-H₂S, tuubooyinka cutubka soo kabashada sulfur.

Womic Steel oo bixisa qiimo tayo sare leh & tartan ah oo ah API 5L X65 PSL2 adeeg dhanaan ah oo LSAW ah, tuubo bir ah oo la tijaabiyay HIC, tuubo u adkaysta SSC, tuubo xoog sare leh oo waafaqsan NACE. Shahaadada warshadda EN 10204 3.2, tijaabada biyaha, UT/TOFD, PWHT, dhammaadka godan, dahaarka 3LPE/FBE ayaa diyaar ah. Sahay toos ah oo warshadeed oo loogu talagalay mashaariicda saliidda iyo gaaska dhanaan ee adduunka oo dhan.

Noo soo dir emayl Qeexitaannada Badeecada

Faahfaahinta Badeecada

Calaamadaha Alaabta

1. Birta Womic: Awoodaha Wax Soo Saarka & Xoogga Shirkadda ee Adeegga Dhadhanka X65

Womic Steel Group waxay maamushaa khadadka wax soo saarka ee loogu talagalay tuubooyinka LSAW ee adeegga dhanaan ee xoogga badan. Adeegga dhanaan ee X65 wuxuu ka baahi badan yahay X52 sababtoo ah xoog sare iyo shuruudaha adag ee adag. Xakamaynta muhiimka ah waxaa ka mid ah:

● U dhigma kaarboon yar (CEV ≤ 0.40%, caadi ahaan ≤ 0.38%)

● Sulfur aad u hooseeya (S ≤ 0.0015%) iyo fosfooraska hooseeya (P ≤ 0.015%)

● Daaweynta kaalshiyamka si loo xakameeyo qaabka isku-darka (saamiga Ca/S ≥ 1.5)

● Taarikada qaboojinta degdegga ah (TMCP) si loo gaaro qaab-dhismeedka ferrite-ka acicular

● Daaweynta kulaylka ka dib alxanka (PWHT) ee dhammaan tuubooyinka, iyadoon loo eegin dhumucda derbiga

● Tijaabinta adag ee 100% (alxanka, HAZ, birta salka) - bartilmaameedka ≤ 85 HRB

● Tijaabada HIC iyo SSC sida waafaqsan heerarka NACE iyadoo aan la aqbalin wax jab ah mashaariic badan

Hawsha wax soo saarka: JCOE, UOE (waxaa la doorbidayaa cadaadis yar oo haray awgeed), saxan la duubay, dhammaantoodna leh PWHT qasab ah oo ku jira foornada hoose ee gaariga (dherer 12m ah, 600°C ± 10°C). Kormeer dhinac saddexaad ah oo ay sameeyaan SGS, BV, TÜV, DNV, ABS, ama LR si loo helo shahaado adeeg oo dhanaan ah.

Adeegga dhanaan ee sanadlaha ah ee X65 LSAW:25,000 oo tan.

Dabacsanaanta Wax Soo Saarka ee Adeegga Dhadhanka X65:

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

● UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m (waxaa la doorbidayaa dhanaan sababtoo ah cadaadis yar oo haray)

● Saxan duuban: 600–1,600mm OD × 25–60mm WT × ≤ 12m

● PWHT ayaa lagu mariyay tuubo kasta (qoy 600°C ± 10°C, hayso 1 saac dhumucdiis 25mm kasta, qabow gaabis ah ≤ 200°C/saacaddii)

2. Adeegga Dhadhanka API 5L X65 PSL2: Halabuurka Agabka & Astaamaha Waxqabadka

Adeega dhanaan ee X65, kiimikada ayaa ka adag PSL2 caadiga ah waxayna sidoo kale ka adag tahay dhanaan X52. Hadafku waa in la gaaro xoog sare (450 MPa wax soo saar) iyadoo la ilaalinayo iska caabinta HIC iyo SSC oo aad u fiican.

Halabuurka Kiimikada (Falanqaynta Maqaarka, bartilmaameedyada caadiga ah ee adeegga dhanaan):

Walax	Heerka ugu badan ee PSL2	X65 Adeega Dhanaan Bartilmaameedka (Womic)
C	0.12	≤ 0.08 (caadi ahaan 0.05-0.07)
Mn	1.60	≤ 1.40 (caadi ahaan 1.20-1.35)
P	0.025	≤ 0.015
S	0.015	≤ 0.0015 (0.0010 caadi ah)
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	Lama cayimin	≤ 0.30 (dhar ahaan, badanaa 0.15-0.25)
Ni	Lama cayimin	≤ 0.50 (ikhtiyaar u ah heerkulka hooseeya)
CEV	≤ 0.43	≤ 0.40 (caadi ahaan ≤ 0.38)
PCm	≤ 0.25	≤ 0.22

Daawaynta kaalshiyamka (saamiga Ca/S ≥ 1.5) waxay hubisaa in lagu daro globular sulfide. Ku darista molybdenum waxay hagaajisaa iska caabbinta SSC heerarka xoogga sare.

Sifooyinka Farsamada (Ka dib PWHT):

Hantida	Adeegga Dhadhanka X65 PSL2 (Haweenka)
Xoogga Wax Soo Saarka (daqiiqad)	450 MPa (65,300 psi)
Xoogga Wax Soo Saarka (ugu badnaan)	570 MPa (82,700 psi)
Xoogga Tijaabada (daqiiqad)	535 MPa (77,600 psi)
Kordhinta (ugu yaraan)	19%
Adkaanta (ugu badnaan)-mashaariic badan	85 HRB (Haweenku waxay gaartay 78-85 HRB)
Adkaanta Saamaynta @ -20°C (ikhtiyaar)	≥ 27 J (caadi ahaan 80-150 J)
Adkaanta Saamaynta @ -46°C (ikhtiyaar)	≥ 27 J (caadi ahaan 60-100 J)

Tijaabinta Waajibka ah ee Adeegga Dhadhanka X65:

● HIC halkii NACE TM0284 (Xalka A, 96 saacadood)-aqbalaad: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% (mashaariic badan ayaa u baahan 0%)

● SSC halkii NACE TM0177 (Habka A, 720h, 90% SMYS)-dildilaac la'aan

● Adkaantu waxay dhex martaa alxanka, HAZ, iyo birta salka ah (ugu badnaan 85 HRB)

● Charpy V-Notch heerkul ah 0°C ama ka hooseeya (caadiyan 27 J daqiiqo)

● DWTT (xakamaynta jabka, haddii la cayimay)

3. U hoggaansanaanta Heerka Cabbirka iyo Heerarka

Shay	Faahfaahinta
Heerka Caadiga ah	API 5L PSL2 oo leh kabitaan adeeg dhanaan ah
NACE	NACE MR0175 / ISO 15156 (daabacadii ugu dambeysay)
Habraacyada Wax Soo Saarka	JCOE, UOE, saxan duuban (dhammaantood waxaa ku jira PWHT)
Kala duwanaanshaha Dhexroorka Dibadda	219mm-1,600mm (8"-63″)
Kala duwanaanshaha Dhumucda Darbiga	6.0mm-60mm (JCOE/UOE ugu badnaan 50.8mm, saxanka la duubay ugu badnaan 60mm)
Kala Duwanaanta Dhererka	6m -18m oo caadi ah; ilaa 24m (UOE)
Dhammaadka Dhammaadka	Dhammaadka La Jaray (BE) halkii API 5L
Dhammaadka Dusha Sare	Bare, 3LPE, 3LPP, FBE (dahaarka waa inuu ahaadaa mid u qalma adeegga dhanaan)
Dulqaadka	OD: ±0.5%; WT: -0% / +15%; Dhererka: +50mm / -0mm

4. Cabbirrada iyo Tilmaamaha La Heli Karo - API 5L X65 PSL2 Adeegga Dhadhanka LSAW Birta Tuubada

OD (mm)	Xulashooyinka WT (mm)	Geedi socodka	Miisaanka Qiyaas ah (kg/m)	Dhererka Caadiga ah	Sifooyinka Adeegga Dhadhanka leh
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6-63.6	12m	PWHT, HIC ayaa la baaray
273	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	52.3-101.5	12m / 18m	Adkaanta ≤ 85 HRB
324	10.0, 12.5, 14.0, 16.0, 19.0	JCOE	77.4-142.8	12m / 18m	CEV ≤ 0.40, Mo lagu daray
406	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	JCOE/UOE	97.7-208.4	12m / 18m	SSC ayaa la baaray
508	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	EUE	152.7-302.3	12m / 18m / 24m	Waddo adag oo buuxda
610	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	EUE	205.8-401.8	12m / 18m / 24m	HIC CLR 0% caadi ah
711	16.0, 19.0, 22.0, 25.4, 28.0, 31.8	UOE/JCOE	274.3-532.9	12m / 18m	PWHT waa qasab
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/La duubay	484.3-862.0	12m	Hoos u dhac S (≤ 0.0015%)
1,016	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	La duubay	619.9-1,191.7	12m	Ca daaweysan, Mo ilaa 0.25%
1,220	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	La duubay	880.9-1,577.8	12m	Dhadhan biyo qoto dheer

Dhammaan tuubooyinka adeegga dhanaan ee X65 waxay helaan PWHT iyadoon loo eegin dhumucda derbiga. UOE waxaa loo doorbidaa dhexroorka ≤ 1,220mm sababtoo ah xakamaynta cadaadiska haraaga oo heer sare ah.

5. Heerarka Caadiga ah ee Tuubada Adeegga Dhadhanka Xoogga Sare leh

Heerka Caadiga ah	Codsiga	Shuruudaha Imtixaanka
API 5L PSL2 + Lifaaqa H	Tuubada khadka adeegga dhanaan	HIC, SSC, adkaansho ≤ 90 HRB
NACE MR0175 / ISO 15156	Agabka loogu talagalay deegaannada H₂S	Xaddidaadaha adkaanta, kiimikada
NACE TM0284	Habka tijaabada HIC	CLR, CTR, CSR
NACE TM0177	Habka tijaabada SSC (Habka A, B, C, D)	Dildilaac ma jiro
DNV-OS-F101 (kaabis dhanaan)	Dhuumaha dhanaan ee xeebaha	CTOD dheeraad ah iyo daal
Qolofka DEP 31.40.30.31	Adeegga dhanaan ee biyaha qotoda dheer	Adkaanta adag (≤ 85 HRB)

Soo koobidda isticmaalka:Khadadka gaaska dhanaan ee cadaadiska sare leh, dhuumaha saliidda dhanaan ee biyaha qoto dheer, adeegga aashitada badda, biyaha dhanaan ee warshadda sifeynta, cutubyada aamiin, duritaanka gaaska aashitada, CCS oo leh H₂S.

6. Habka Wax Soo Saarka - LSAW ee Adeegga Dhadhanka X65 PSL2

Adeegga dhanaan ee X65 wuxuu u baahan yahay taarikada TMCP ee horumarsan iyo xakamaynta habka oo aad u adag.

Xulashada Saxanka:

● Kaarboon yar (≤ 0.08%), manganese yar (≤ 1.40%), sulfur aad u hooseeya (≤ 0.0015%)

● Kaalshiyam la daweeyay (Ca/S ≥ 1.5)

● Ku darista Mo (0.15-0.25%) ee iska caabbinta SSC

● TMCP oo leh qaboojin degdeg ah-qaab-dhismeedka ferrite acicular

Samaynta JCOE / UOE + Tallaabooyin Gaar ah oo Dhanaan:

●Shilling geeska -Saxnaanta ±0.5mm, J bevel si loo helo marin alxan oo wanaagsan.

●Samaynta -UOE ayaa la doorbidayaa (diiqada haraaga ah oo yar). JCOE waa la aqbali karaa marka la eego xeebta.

●Alxanka SAW -Kuleylka la geliyo ≤ 2.2 kJ/mm (ka hooseeya heerka caadiga ah). Heerkulka dhex-dhexaadka ah ≤ 150°C.

●100% UT oo leh TOFD -Ka xasaasisan UT-da caadiga ah.

●Daaweynta Kulaylka Kadib-Alxanka (PWHT) -Waa waajib dhammaan adeegyada dhanaan ee X65. Ku qoo 580-600°C (heerkulka ka hooseeya X52 si looga fogaado luminta xoogga). Hayso 1 saac dhumucdiis 25mm ah. Foornada qabooji saacaddii ≤ 150°C.

●Ballaarinta farsamada (UOE) -Xaddidan 0.5-0.8% (marka la barbar dhigo 1.5% heerka caadiga ah) si looga fogaado adkaanta shaqada qabow.

●Tijaabinta adkaanta -Saddex marin oo buuxa halkii tuubo (birta salka, HAZ, xariiqda dhexe ee alxanka). Ugu badnaan 85 HRB.

●Baaritaanka HIC -Sida ku cad Xalka NACE TM0284, 96 saacadood. Muunado laga soo qaaday dhammaadka tuubooyinka.

●Imtixaanka SSC -Sida ku cad Habka A ee NACE TM0177, 720h oo ah 90% SMYS.

Qiyaasaha Foornada PWHT ee Dhadhanka X65:

● Heerkulka: 590°C ± 10°C (ka hooseeya X52 si uu u ilaaliyo xoogga)

● Waqtiga qoyaanka: 1 saac 25mmkiiba (ugu yaraan 1 saac)

● Heerka qaboojinta: ≤ 150°C saacaddii laga bilaabo 590°C ilaa 300°C

● Heerkulbeegyo badan oo dusha sare ee tuubada ah

7. Xakamaynta Tayada & Tijaabinta Adeegga Dhadhanka X65 LSAW

Masraxa	Kormeerka	Shuruudaha Aqbalaadda
Saxan	Kiimiko (OES)	C ≤ 0.08, S ≤ 0.0015%, CEV ≤ 0.38, Mo 0.15-0.25%
Saxan	Ultrasonic (dahaadhida)	Lama saarin karo > 3mm
Saxan	Jilicsanaan + Jajab leh -20°C	Wax soo saar ≥ 450 MPa, CVN ≥ 50J
Alxanka	100% UT oo leh TOFD	Ma jiraan wax calaamado ah > 1.6mm
Alxanka	RT (ugu yaraan 10%)	Dildilaac ma jiro, la'aanta isku-darka
Ka dib PWHT	Adkaanta (HRB)-BM, Alxanka, HAZ	≤ 85 HRB (aag kasta)
Dhammaatay	HIC (NACE TM0284)	CLR ≤ 2% (badanaa 0%), CTR ≤ 1%, CSR ≤ 0.5%
Dhammaatay	SSC (Habka NACE TM0177 A, 720h)	Dildilaac ma jiro
Dhammaatay	Charpy @ -20°C ama ka hooseeya	≥ 27 J (daqiiqo), caadiga ah 80-150 J
Dhammaatay	Gariir	Wax soo saar 450-570 MPa, Gariir ≥ 535 MPa
Dhammaatay	Imtixaanka Hydrostatic-ka	90-100% SMYS

Xirmada dukumentiyada waxaa ka mid ah: MTC Type 3.2, jaantusyada PWHT, khariidadaha adag, warbixinnada HIC iyo SSC, diiwaanka UT/TOFD, shahaadooyinka tijaabada biyaha.

8. Codsiyada Aasaasiga ah - API 5L X65 PSL2 Adeegga Dhadhanka LSAW Birta Tuubada

●Khadadka jirridda gaaska dabiiciga ah ee dhanaan oo cadaadis sare leh -Gudbinta masaafada dheer ee 10-15 MPa oo leh H₂S ilaa 50 ppm

● Dhuumaha saliidda dhanaan ee biyaha qotoda dheer ee badda -Khadadka badda hoosteeda ee deegaannada H₂S (tijaabinta UOE + CTOD)

● Socodka saliidda cayriin ee dhanaan -Khadadka cadaadiska sare leh ee ka imanaya ceelasha ilaa xarumaha dhexe

● Khadadka biyaha macaan ee sifeynta -Adeegga Ammonium bisulfide iyo H₂S (heerkulka sare)

● Tuubooyinka qaybta daaweynta Amine -Amiin qani ah oo caato ah (H₂S iyo CO₂)

● Ceelasha duritaanka gaaska asiidhka -Ku duritaanka isku darka H₂S/CO₂ meelaha qashinka lagu shubo

● Khadadka kor u qaadista gaaska -Duritaanka gaas dhanaan si loogu qaado kor u qaad macmal ah

● Dhuumaha CCS oo leh wasakh H₂S ah -Qabashada iyo kaydinta kaarboonka halkaas oo durdurka CO₂ uu ka kooban yahay H₂S

9. Baakadaha & Rarista - X65 Adeegga Dhadhanka LSAW Pipe

Sida baakadaha caadiga ah ee LSAW oo leh ilaalin dhammaystiran oo la xoojiyay (dabool bir ah oo aan daxal lahayn ayaa lagula talinayaa in laga fogaado wasakhowga). Dukumentiyadu waxay ka kooban yihiin faylal tayo sare leh oo dhammaystiran oo adeeg dhanaan ah iyo sidoo kale dukumentiyada rarista caadiga ah.

10. Faa'iidooyinka iyo Su'aalaha Badiya La Weydiiyo ee Birta Womic - X65 PSL2 Adeegga Dhadhanka LSAW

Maxaa loo sameeyay Womic Steel oo loogu talagalay Adeegga Dhadhanka X65?

● Foorno PWHT ah oo gaar ah (dhererkeedu yahay 12m) oo leh heerkul sax ah (590°C ± 10°C)

● Baaritaanka HIC iyo SSC ee gudaha (shaybaarka CNAS ay aqoonsan tahay)

● Taarikada Mo-alloyed si ay u ilaaliyaan iska caabbinta SSC ee sareysa

● Habka UOE ee cadaadiska haraaga ah ee hooseeya (waxaa la door bidaa biyaha qoto dheer)

● Tijaabo dhanaan oo dhinac saddexaad ah oo la heli karo (SGS, BV, TÜV, DNV)

● In ka badan 300 km oo tuubooyin adeeg dhanaan ah oo X65 ah ayaa laga bixiyaa adduunka oo dhan

Su'aalaha Badiya La Weydiiyo:

S: Waa maxay faraqa u dhexeeya adeegga dhanaan ee X52 iyo adeegga dhanaan ee X65?
A: Adeegga dhanaan ee X65 waa mid aad u baahan. X65 wuxuu u baahan yahay xoog sare (450 vs 360 MPa wax soo saar) iyadoo la ilaalinayo xadka adag ee isku midka ah ama adag (≤ 85 HRB). Tani waxay u baahan tahay ku darista Mo (0.15-0.25%), xakamaynta CEV oo adag (≤ 0.38% vs ≤ 0.40%), iyo inta badan heerkulka PWHT oo hooseeya (590°C vs 600°C) si looga fogaado luminta xoogga. X65 waxaa badanaa loo cayimaa dhuumaha cadaadiska sare (> 10 MPa) iyo codsiyada biyaha qoto dheer ee badda.

S: Ma qasab baa in PWHT laga isticmaalo dhammaan tuubooyinka adeegga dhanaan ee X65 iyadoon loo eegin dhumucda derbiga?
J: Haa, sida ku cad NACE MR0175 iyo dhammaan tilmaamaha hawlgalayaasha waaweyn. Xitaa tuubooyinka 6.4mm WT, PWHT waxaa looga baahan yahay inay gaarto adkaanta ≤ 85 HRB iyo inay yareyso walbahaarka haray. Womic waxay PWHT ku marisaa 100% tuubooyinka X65 ee adeegga dhanaan.

S: Waa maxay shuruudaha aqbalaadda HIC ee caadiga ah ee adeegga dhanaan ee X65?
A: NACE TM0284 waxay u ogolaanaysaa CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Si kastaba ha ahaatee, inta badan mashaariicda biyaha qoto dheer iyo kuwa daacadda ah waxay u baahan yihiin CLR = 0% (ma jiraan dildilaacyo). Taarikada sulfur-ka ee Womic ee aadka u hooseeya (S ≤ 0.0015%) iyo daaweynta kaalshiyamka waxay si joogto ah u gaaraan CLR 0%.

S: Ma loo isticmaali karaa tuubooyinka adeegga dhanaan ee X65 jawiyada arctic ama heerkulka hooseeya?
J: Haa, iyadoo la adeegsanayo tijaabo dheeraad ah oo heerkulka hooseeya ee Charpy. Womic waxay ku siin kartaa adeeg dhanaan X65 ah oo leh tijaabinta saameynta -20°C, -40°C, ama -46°C (daqiiqad 27J). Adeegga dhanaan ee arctic, waxaan sidoo kale bixinnaa DWTT (≥ 85% aagga gooynta heerkulka tijaabada). Ogsoonow in heerkulka hooseeya iyo adeegga dhanaan ay wada baahan yihiin naqshad bir ah oo taxaddar leh (Ni lagu daray, CEV hooseeya). Fadlan bixi heerkulkaaga hawlgalka iyo cadaadiska qayb ahaan H₂S si loo qiimeeyo ku habboonaanta.

S: Waa maxay cadaadiska qayb ahaan ugu badan ee H₂S ee adeegga dhanaan ee X65?
J: Sida ku cad NACE MR0175, X65 wuxuu ku habboon yahay adeeg dhanaan ilaa 0.3 psi (0.02 bar) H₂S cadaadis qayb ah. Wixii cadaadis qayb ah oo sare (tusaale ahaan, 0.5-1.0 psi), shahaado dheeraad ah (HIC oo leh pH hoose, SSC oo leh cadaadis sare) ayaa loo baahan yahay. Womic waxay u qalantay X65 H₂S cadaadis qayb ah ilaa 1.0 bar mashaariic gaar ah. Fadlan la wadaag xaaladahaaga hawlgalka.

S: Waa maxay waqtiga caadiga ah ee hogaanka adeegga dhanaan ee X65 LSAW?
J: 80-120 maalmood, iyadoo ku xiran helitaanka saxanka Mo-dabiiciga ah (waqtiga rasaasta 8-12 toddobaad) iyo tijaabada HIC/SSC (4-6 toddobaad). Dalab degdeg ah (60-90 maalmood) ayaa suurtagal ah haddii saxannada la keydiyo. Tijaabada dhinac saddexaad ee markhaatiga ah waxay ku dareysaa 1-2 toddobaad.

S: Ma bixisaa baaritaanka CTOD ee X65 soodhaha dhanaan ee xeebaha?
J: Haa. Waxaan sameynaa tijaabada CTOD (Qalalaasaha Furitaanka Tip) sida ku cad BS 7448 ama ASTM E1820 heerkul cayiman (badanaa -20°C ama -46°C). Qiimaha ugu yar ee CTOD: bir alxan ≥ 0.25mm, HAZ ≥ 0.30mm. Waxaan siinay tuubooyin dhanaan X65 ah oo CTOD lagu tijaabiyay mashaariicda biyaha qotoda dheer ee Badda Waqooyi iyo Gacanka Mexico.

Tixraaca Mashruuca-Dhuumaha Gaaska Dhanaan ee Waqooyi Galbeed (Australia)

Dalka:Australia (Galbeedka Australia, Waqooyi Galbeed Shelf)
Heerka & Darajada:API 5L X65 PSL2 oo leh kabitaan adeeg dhanaan ah sida ku cad NACE MR0175; CTOD dheeraad ah iyo shuruudaha heerkulka hooseeya
Cabbirka iyo Tirada:

● OD 610mm (24″) × Miisaan 15.9mm-45,000 mitir (qiyaastii 9,200 tan) oo ay soo saartay habka UOE

OD 610mm (24″) × WT 19.0mm-12,000 mitir (qiyaastii 2,800 tan) oo ay soo saartay habka UOE (derbi qaro weyn oo loogu talagalay qaybta kor u qaadista)

● OD 813mm (32″) × Miisaan 22.2mm-8,000 mitir (qiyaastii 3,100 tan) oo ay soo saartay habka JCOE (qaybta xeebta)
Wadarta:65,000 mitir (65 km), qiyaastii 15,100 tan

Tilmaamaha:Dahaarka 3LPP ee dibadda (3.5mm) heerkulka sare (95°C), dhammaadka la jaray 30°/1.6mm, baaritaanka hydrotest 18.0 MPa (cadaadiska naqshadeynta 12.5 MPa). Saamaynta Charpy ee qasabka ah -20°C (ugu yaraan 50J, la gaaray 100-160J). CTOD at -20°C: bir alxan ≥ 0.25mm, HAZ ≥ 0.30mm (la gaaray 0.35-0.55mm). HIC halkii NACE TM0284 Xalka A, 96h-Aqbalaadda: CLR = 0%, CTR = 0%, CSR = 0%. SSC halkii NACE TM0177 Habka A, 720h 90% SMYS-ma jiraan wax dildilaac ah. Adkaanta ugu badnaan 85 HRB. PWHT ayaa lagu dabaqay dhammaan tuubooyinka (qoy 590°C ± 10°C, 1.5 saacadood). 100% UT oo leh TOFD oo lagu daray 20% RT. Kormeer dhinac saddexaad ah oo ay samaysay DNV Australia.

Codsiga:Dhuumaha gaaska dhanaan ee gaaska dabiiciga ah ka qaada beeraha badda (oo leh H₂S oo ah 15-25 ppm) una geeya warshadda LNG ee xeebta. Dhuumaha 65 km ah waxaa ku jira qayb biyo-hoosaad ah oo qoto dheer (qoto dheer oo biyaha ah 200-300m) iyo qayb xeebta ah oo dhex marta ciidda daxalka leh. Dhuumaha waxay ku shaqeeyaan 95°C iyo 12.5 MPa.

Caqabadaha Farsamada iyo Xalalka:

● Heerkul sare (95°C) oo lagu daray adeeg dhanaan -Inta badan dhuumaha adeegga dhanaanku waxay ka shaqeeyaan heerkul ka hooseeya 80°C. 95°C, NACE MR0175 waxay xaddidaad adag ku soo rogtaa adkaanta iyo xulashada walxaha. Taarikada Mo-alloyed ee Womic waxay doorteen (Mo 0.20-0.25%) waxayna isticmaaleen dahaadh 3LPP ah (polypropylene, oo loo qiimeeyay 120°C) halkii ay ka ahaan lahayd 3LPE (oo ku xaddidan 80°C). Heerkulka PWHT waxaa loo dhimay 580°C si looga fogaado in si xad dhaaf ah loo kululeeyo. Adkaanta ka dib PWHT: birta salka ah 78-82 HRB, alxanka 80-84 HRB-si fiican ugu jira xadka.

● Shuruudaha HIC ee aan lahayn dildilaaca -Macmiilka waxaa loo baahan yahay CLR = 0% (ma jiraan dildilaacyo HIC ah). Womic waxay isticmaashay saxanno sulfur ah oo aad u hooseeya (S ≤ 0.0008%) oo leh saamiga Ca/S 2.2. Ka dib PWHT, baaritaanka HIC ee 20 muunadood (4 kuleylkiiba) wuxuu muujiyay CLR 0%, CTR 0%, CSR 0%. Baaritaanka qaab-dhismeedka microstructure wuxuu muujiyay oo keliya sulfide-ka globular (ma jiraan MnS dheer).

● Adkaynta jabka CTOD ee kor u kaca badda -Qaybta kor u qaadista (12 km) waxay u baahnayd baaritaanka CTOD ee -20°C. Womic waxay ku samaysay CTOD birta alxanka iyo HAZ. Natiijooyinka: birta alxanka 0.40-0.55mm, HAZ 0.45-0.70mm (oo ka sarreeya 0.25mm/0.30mm). Waxaan sidoo kale bixinnay talooyin ku saabsan u-qalmitaanka habka alxanka oo dhammaystiran (WPQ) ee alxanka wareegga goobta.

● Ku dhejinta dahaarka heerkulka sare (3LPP) -Dahaarka 3LPP wuxuu u baahan yahay FBE primer (epoxy) iyo lakabka sare ee polypropylene. Dahaarka lagu dabaqay womic ee goob shaqo oo cimiladu xakamayso. Xoogga diirka 95°C oo lagu cabbiray 75 N/cm (ugu yaraan 50 N/cm). Kala-goynta Cathodic ee 95°C ka dib 28 maalmood: ≤ 6mm radius.

● Saadka loo aado Galbeedka fog ee Australia -Dhuumaha waxaa laga soo raray Shanghai una sii gudbiyay dekedda Dampier (Galbeedka Australia) iyada oo loo marayo markab jabay (safar 28 maalmood ah). Sababo la xiriira xilliga duufaanta awgeed, laba shixnadood ayaa dib loo dhigay. Womic waxay hagaajisay jadwalka wax soo saarka si ay u xoojiso shixnadaha oo ay uga fogaato burbur. Dhammaan 15,100 tan ayaa la keenay daaqadda mashruuca.

● Natiijo:Dhuumaha gaaska dhanaan waxaa la howlgaliyay Q1 2025. Ka dib 18 bilood oo shaqo ah, kormeerka khadka tooska ah (ILI) ma muujin wax cillado ah oo la xiriira HIC ama SSC. Hawl-wadeenku wuxuu ansixiyay Womic Steel inay noqoto alaab-qeybiye u qalma mashaariicda ballaarinta gaaska dhanaan ee mustaqbalka ee Waqooyi Galbeed Shelf.

La xiriir:
Mareegta: www.womicsteel.com
Iimayl: sales@womicsteel.com

Taleefan / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Birta Womic-Lamaanahaaga lagu kalsoonaan karo ee adeegga dhanaan ee API 5L X65 PSL2 tuubooyinka birta ah ee LSAW ee khadadka gaaska dhanaan ee cadaadiska sare leh, dhuumaha biyaha qoto dheer ee badda, iyo codsiyada adeegga aashitada adduunka oo dhan.

Kii hore: Tuubooyinka Birta ee API 5L X65 LSAW: Awoodaha Wax Soo Saarka & Tilmaamaha Badeecada

Xiga: Tuubooyinka Birta ee API 5L X70 LSAW: Awoodaha Wax Soo Saarka & Tilmaamaha Badeecada