Vim li cas cov pa roj dulex thiab super duplex pipes excel nyob rau hauv cov ntawv thov seedea

Cov kev sib tw ntau ntawm cov chaw muaj ib puag ncig

Cov roj muaj roj thiab roj av hauv ib qho ntawm cov chaw hnyav tshaj plaws hauv ntiaj teb-ntug crushing Tsoos carbon hlau thiab cov hlau ua pa roj av hlau tsis muaj roj feem ntau poob luv luv hauv cov kev mob no, ua rau kev txij nkawm thaum ntxov. Qhov no yog qhov twgDuplex (2205) Thiab Super Duplex (2507) Cov Kav Dejua pov thawj lawv cov superiority.

Qhov Tseem Ceeb Zoo ntawm Duplex & Super Duplex Kav Rau Kev Siv Kev Siv Yav Tom Ntej

 

1. Unmatched corrosion tsis kam

• Chloride Kuj: Super duplex (PREN >40) Outperforms Txuj Ci 316L Stainless Hlau hauv kev tawm tsam pitting thiab corrosion corrosion tshwm sim los ntawm seawater.
• Hydrogen Sulfide (H₂S) Kev Tiv Thaiv:Qhov zoo tagnrho rau cov kev pabcuam qaub rau ib puag ncig qhov twg h₂s-indents kev nyuaj siab corrosion (SCC) yog qhov pheej hmoo.
• Lub sijhawm ntev ntev:Tsis zoo li cov roj carbon hlau, cov hlau chav yas tsis tas yuav tiv thaiv cov tshuaj tiv thaiv lossis tshuaj tiv thaiv kev tiv thaiv kev tiv thaiv.

 

2. Tshwj xeeb lub zog-rau-hnyav piv txwv

• Ntau dua tawm lub zog:Duplex ({450-550 mpa mpa) thiab super ruplex ({}} mpa mpa) muaj ze liOb Chav Lub Zogntawm 304/316 stainless hlau.
• Thinner phab ntsa, cov qauv sib zog:Ua kom cov phaus txo qis hauv cov kav dej tob thaum tswj hwm siab tiv taus.
• Txo cov nqi teeb tsa:Qis dua qhov hnyav txhais tau tias yooj yim thiab kev txhawb nqa tsawg dua uas xav tau rau kev teeb tsa hauv kev teeb tsa.

 

3. Tus nqi ua hauj lwm ua hauj lwm ntev

 

Yam tseem ceeb	Cov Hlau Hlau	Austenitic SS (316L)	Super Duplex (2507)
Cov Khoom Siv Nqi	Qi	Tswj kav	Siab
Corrosion tiv thaiv xav tau?	Yog (txheej, cp)	Tej thaum	Tsis muaj
Kev Saib Xyuas Ntau	Siab	Tswj kav	Tsawg heev
LIFPANPAN NYOB RAU HAUV Seas	10-15 xyoo	20-25 xyoo	30+ xyoo
Tag Nrho Cov Nqi Ntawm Cov Tswv Cuab	Siab tshaj plaws	Tswj kav	Qis tshaj

 

4. Cov qaug zog heev & tawg tsis kam

• Dynamic Kev Tso Khoom:Ua kom tsis txhob nkees ntawm dej hiav txwv kom dej hiav txwv, vortex-tortuced vibrations (viv), thiab siab siab hloov.
• Siab tawv ntawm tsawg kub:Tswj hwm ductility txawm nyob rau hauv tob-hiav txwv (nqes mus rau -50 degree).
• Kev ntxhov siab corrosion cracking (SCC) Kuj:Tseem ceeb rau kev kub siab, siab-kub (HPHT) Wells.

 

5. Optimized weldability rau hauv qab cov ntaub

• Pre-weld & post-weld zoo tshaj plaws kev coj ua:

Kev siv2209/2594 Cov Khoom Ua SiTxhawm rau tswj hwm corrosion

Tswj tshav kub tawm ({0. {{}}. 5 kj / mm / hli) kom tsis txhob muaj kev phom sij nag lossis daus

Purge nrog argon kom tiv thaiv oxidation

• Automated Orbital Vuam:Ua kom muaj zog sib xws hauv kev ua raws li cov khoom lag luam gipeline girth.

 

Kev Lag Luam Kev Lag Luam

Kev Lag Luam Hauv Qab Zib & Flowlines

Kev txhaj tshuaj siab roj

Corrosion-resistant risers

Manifolds & Cov Ntoo Christmas

Super Duplex Forgings rau cov kev ntxhov siab ntawm kev ntxhov siab

Dej hiav txwv cua txias tshuab

ResistS biofouling thiab yaig-corrosion

Nqus Txhaum Tsw

Sib txuas lub zog nrog hloov tau yooj yim

Cov Lus Qhia Xaiv rau Cov Kws Ua Haujlwm

Rau qhov xwm txheej hnyav (dej ntiav):Duplex 2205 (Pren ~ 35)

Rau cov mob huab (deepwater / HPHT): Super Duplex 2507 (PREN >40)

Cov ntawv tseem ceeb hauv Welds:Qhia meejKev daws AnnealingTom qab Weld los kho cov khoom

Lub neej yav tom ntej ntawm cov ntaub ntawv tom ntej

Nrog rau ntug dej ntws mus rau hauv cov dej tob, Super Duplex stainless hlau yog ua tusCov khoom siv ntawm kev xaivrau qhov tseem ceeb ntawm kev tsim kho vaj tse. Lawv lub peev xwm los ua keCorrosion Kuj, lub zog, thiab tus nqi ua tau zooua rau lawv tsis tseem ceeb rau:
✔ Arctic kev tshawb nrhiav
✔-High-salinly Middle East teb
✔ Cov dej num ua ntej-ntev

Rau cov kws txua ntoo envifying subseea, manifolds, lossis risers, duplex thiab super duplex pipes xa tsis tau kev ntseeg siab-tsis muaj kev xaiv.