API 5L PSL1 Qib A Seamless Steel Kab Yeeb
API 5L PSL1 Qib Ayog covnkag - theem specificationrau seamless steel kab yeeb nkab siv hauv cov roj, roj, thiab cov kav dej. Nws muab cov kev cai yooj yim rau kev pabcuam kav dej dav hlau uas tsis tas yuav muaj zog dua.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Txuj | API 5L PSL1- theem pib zoo |
| Qib | A(Lowest zog qeb) |
| Kev tsim khoom | Seamless (SMLS)los yog Welded |
| Kev siv thawj zaug | Tsawg- cov kav dej siab, cov kav dej |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog, min | 30,000 psi (205 MPa) |
| Tensile zog, min | 48,000 psi (330 MPa) |
| Yield/Tensile Ratio | Tsis txwv rau PSL1 |
| Elongation, min | Raws li cov qauv phab ntsa thickness |
Tshuaj muaj pes tsawg leeg
PSL1 Qib A Yuav Tsum Tau:
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.22 |
| Manganese (Mn), max | 0.90 |
| Phosphorus (P), max | 0.030 |
| Sulfur (S), max | 0.030 |
| Nco tseg: | Lwm cov ntsiab lus tsis tau teev tsegrau PSL1 |
Ntsiab Lus:PSL1 tsom raumechanical zoges tsis yog nruj chemistry tswj.
Vim li cas thiaj xaiv Qib A?
Qhov zoo:
Tus nqi qis tshaj:Kev lag luam feem ntau API kab yeeb nkab
Zoo Weldability:Cov ntsiab lus carbon tsawg (max 0.22%)
Muaj zog txaus:Rau cov ntawv thov siab -
Dav Muaj:Ua los ntawm ntau mills
Kev txwv:
Tsawg zog:30 ksi yield vs 35 ksi rau Qib B
Tsis muaj kev ntsuam xyuas cuam tshuam:Tsis haum rau qhov kub thiab txias
Daim ntawv thov txwv:Tsis yog rau siab - kev pabcuam siab
Daim ntawv thov
Kev siv tsim nyog:
Cov kab xa dej(tsis tshua muaj siab)
Cov raj xa dej
Irrigation systems
Tsawg-siab gas faib(cov cheeb tsam nyob deb nroog)
Slurry kab(tsis yog-abrasive)
Tsis pom zoo rau:
Siab -pas kis tau tus mob
Sour (H₂S).
Tsawg- qhov kub thiab txias
Tseem ceeb/siab- qhov tshwm sim
Kev Xeem Xeem (PSL1)
Yuav tsum xeem:
| Kuaj | Kev xav tau | Lub hom phiaj |
|---|---|---|
| Hydrostatic Test | Txhua lub cev | Siab ncaj ncees |
| Tensile Test | Ib qho ntawm 400 kav dej los yog tsawg dua | Kev kuaj xyuas tshuab |
| Kev tshuaj xyuas qhov muag | 100% | Deg tsis xws luag |
Yeem / Tsis Xav Tau rau PSL1:
Charpy Impact Test
Tee Weight Tear Test (DWTT)
Hardness Test
NDT rau seamless yeeb nkab
Hydrostatic Test Siab:
ntawv nyeem
P=(2 × f × Ymin × t) / D Qhov twg: f=0.80 (tsim qauv) Ymin=30,000 psi rau Qib A t=phab ntsa thickness D=sab nraud txoj kab uas hla
Sib piv nrog Lwm Qib
| Qib | Tawm tswv yim (psi) | Qhov txawv ntawm Qib A |
|---|---|---|
| Qib A | 30,000 | Lub hauv paus |
| Qib B | 35,000 | 17% muaj zog |
| X42 | 42,000 | 40% muaj zog dua |
| X52 | 52,000 | 73% zog |
PSL1 vs PSL2 sib piv
| Kev xav tau | PSL1 Qib A | PSL2 Qib A |
|---|---|---|
| Charpy Impact Test | Tsis xav tau | Yuav tsum tau |
| Qhov siab tshaj plaws | Tsis txwv | Limited (65 ksi max) |
| Carbon sib npaug | Tsis tswj | Txwv tsis pub |
| Chemistry Control | Basic | nruj |
| Nqi | qis tshaj | 15-25% siab dua |
| Daim ntawv thov | Tsis yog - tseem ceeb | Cov chaw tseem ceeb |
Kev txiav txim siab tsim
Kev ntsuas siab (ASME B31.4 / B31.8):
ntawv nyeem
P=(2 × S × t × F × E × T) / D Qhov twg cov qauv tsim qauv (F): - Chav Kawm 1: 0.72 - Chav Kawm 2: 0.60 - Chav Kawm 3: 0.50 - Chav Kawm 4: 0.40
Hom Tsim Kev Nyuaj Siab:
B31.4 (kua):72% SMYS (21,600 psi)
B31.8 (Gas):Nws txawv ntawm chav kawm (16,200-24,300 psi)
Ordering Information
Standard Specification:
ntawv nyeem
API 5L PSL1 Qib A Seamless [Size: OD × Phab Ntsa Thickness] [Length: Random los yog teev] [Ends: Plain lossis beveled]
Piv txwv Orders:
API 5L PSL1 Gr.A, 12.75" × 0.250" WT, 40' RLM, Plain kawg
API 5L PSL1 Gr.A, 6.625" × 0.280" WT, 50' DRL, Beveled kawg
Kev ua lag luam
Kev siv Statistics:
~10%ntawm API 5L yeeb nkab ntau lawm
Feem ntau sivnyob rau hauv cov dej / dej khib nyiab
Txo kev sivraws li Qib B dhau los ua tus qauv yam tsawg kawg nkaus
Nqe rhiab heevkev lag luam nkaus xwb
Cov Nqi Them Nqi:
15-20% pheej yig duadua qib B
Thinner phab ntsa ua taurau qis- qauv tsim
Kev txuag tsheb thauj mus losvim qhov hnyav dua
Installation nqizoo ib yam li qib siab
⚠️ Cov kev txwv tseem ceeb
Kev txwv kub:
Tsis yog rau qis -kubkev pabcuam (tsis muaj kev kuaj xyuas)
Qhov kub siab tshaj plaws:400 ° F (200 ° F)
Thermal cyclingtej zaum yuav ua rau muaj teeb meem qaug zog
Tsis yog rau Cov Kev Pab Cuam no:
Qab Zib (H₂S) ib puag ncig
Offshore pipelines
Siab - qhov tshwm sim(HCAs)
Arctic / huab cua txiascov kav dej
Siab -pas kis tau tus mob (>150 psi)
International sib npaug
| Thaj tsam | Standard sib npaug |
|---|---|
| ISO | TS EN ISO 3183 L210 |
| Teb chaws Europe | TS EN 10208-2 L210 |
| Tuam Tshoj | GB/T 9711 L210 |
| Russia | GOST 20295 L210 |
Yav tom ntej Outlook
Kev lag luam Trends:
Qib B uayam tsawg kawg nkaus specification
PSL2 cov caince ntxiv
Kev siv qib A poob qistshwj tsis yog rau cov dej num
Qee qhov tshwj xeebtshem tawm qhov kev xaiv qib A
Cov lus pom zoo:
Xav txog qib Brau feem ntau cov haujlwm tshiab
Siv Qib A nkaus xwbthaum muaj kev ncaj ncees
Ntsuas tag nrho cov nqi ntawm lub neej,tsis yog tus nqi pib xwb
Xav txog kev hloov kho tshiab yav tom ntejthaum xaiv qib
Hauv cov ntsiab lus: API 5L PSL1 Qib A seamless yeeb nkabmuab ibyooj yim, kev xaiv nyiaj txiagrau qis- cov ntawv thov cov raj xa dej siab uas tsis tas yuav muaj zog dua. Thaum nws ua tau raws li cov cai rau qee cov kev pabcuam, nwstxwv lub zog thiab tsis muaj kev sim toughnessua kom haum nkaus xwbtsis yog- tseem ceeb, qis- cov ntawv thov siab. Rau feem ntau cov kav dej tshiab,Qib B lossis siab dua yog pom zookom zoo dua kev nyab xeeb margins thiab yav tom ntej yooj.
