API 5L Kab Yeeb Nkab Rau Roj Pipelines

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Qhia txog peb cov khoom lag luamAPI 5L Kab Yeeb, ib qho kev daws teeb meem zoo tshaj rau cov roj thiab cov kav xa hluav taws xob.Cov yeeb nkab yog tsim los ua kom tau raws li cov qauv thoob ntiaj teb, muab kev ua tau zoo tshaj plaws thiab kev ntseeg tau txawm tias nyob rau hauv qhov chaw xav tau tshaj plaws.Ua ke nrog cov khoom zoo tshaj plaws ntawm kauv welded yeeb nkab, peb cov khoom tau paub tseeb tias yuav dhau qhov koj xav tau.

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Khoom cim npe

API 5L kab yeeb nkab yog lub cim ntawm kev ua tau zoo hauv kev lag luam.Lub raj xa dej tuaj yeem tiv taus qhov kub thiab txias, ua kom muaj kev nyab xeeb thiab kev thauj mus los ntawm cov roj thiab cov pa roj.

Table 2 Lub Cev Lub Cev thiab Cov Khoom Siv Hluav Taws Xob ntawm Cov Hlau Hlau (GB / T3091-2008, GB / T9711-2011 thiab API Spec 5L)

Txuj

Qib Steel

Chemical Constituent (%)

Tensile Khoom

Charpy(V notch) Impact Test

Lwm yam

Yield zog (Mpa)

Tensile zog (Mpa)

(L0 = 5.65 √ S0)min Stretch Rate (%)

max

min

max

min

max

D ≤ 168.33mm

D ＞ 168.3mm

GB/T3091-2008

qw 215a

≤ 0.15

0.25—1.20 Nws

0.045 ib

0.050 ib

0.35 Nws

Ntxiv Nb\V\Ti raws li GB/T1591-94

215

335

> 31

q215 ib

≤ 0.15

0.25-0.55 Nws

0.045 ib

0.035 ib

215

335

> 31

qw 235a

≤ 0.22

0.30 — 0.65 Nws

0.045 ib

0.050 ib

0.035 ib

235

375

> 26

q235 ib

≤ 0.20

0.30 ≤ 1.80

0.045 ib

0.035 ib

235

375

> 26

qw 295a

0.16

0.80-1.50 Nws

0.045 ib

0.55 ib

295

390

> 23

q295 ib

0.16

0.80-1.50 Nws

0.045 ib

0.040 ib

0.55 ib

295

390

> 23

qw 345a

0.20 ib

1.00-1.60 Nws

0.045 ib

0.55 ib

345

510

> 21

q345 ib

0.20 ib

1.00-1.60 Nws

0.045 ib

0.040 ib

0.55 ib

345

510

> 21

GB/T9711-2011 (PSL1)

l175 ua

0.21 ib

0.60 ib

0.030 Nws

Kev xaiv ntxiv ib qho ntawm Nb\V\Ti cov ntsiab lus lossis ib qho kev sib xyaw ua ke ntawm lawv

175

310

Ib lossis ob ntawm qhov toughness Performance index ntawm qhov cuam tshuam lub zog thiab shearing cheeb tsam yuav raug xaiv.Rau L555, saib tus qauv.

L210

0.22

0.90 ib

0.030 Nws

210

335

l245 ua

0.26

1.20

0.030 Nws

245

415

l290 ua

0.26

1.30 Nws

0.030 Nws

290

415

l320 ua

0.26

1.40 Nws

0.030 Nws

320

4 35

l360 ua

0.26

1.40 Nws

0.030 Nws

360

460

l390 ua

0.26

1.40 Nws

0.030 Nws

390

l415 ua

0.26

1.40 Nws

0.030 Nws

415

520

l450 ua

0.26

1.45 Nws

0.030 Nws

450

535 ib

l485 ua

0.26

1.65 ib

0.030 Nws

485 ib

570 ib

API 5L (PSL 1)

A25

0.21 ib

0.60 ib

0.030 Nws

Rau qib B steel, Nb + V ≤ 0.03%; rau steel ≥ qib B, xaiv tau ntxiv Nb lossis V lossis lawv ua ke, thiab Nb + V + Ti ≤ 0.15%

172

310

(L0 = 50.8mm) yuav tsum xam raws li cov qauv hauv qab no: e=1944·A0 .2/U0 .0 A: Thaj tsam ntawm cov qauv hauv mm2 U: Tsawg kawg tensile zog hauv Mpa

Tsis muaj los yog ib qho los yog ob qho tib si ntawm qhov cuam tshuam lub zog thiab qhov chaw shearing yuav tsum tau ua raws li cov txheej txheem toughness.

0.22

0.90 ib

0.030 Nws

207

331

0.26

1.20

0.030 Nws

241

414 ib

X42

0.26

1.30 Nws

0.030 Nws

290

414 ib

X46

0.26

1.40 Nws

0.030 Nws

317

434 ib

X52

0.26

1.40 Nws

0.030 Nws

359 ib

455

X56

0.26

1.40 Nws

0.030 Nws

ib 386

490 ib

X 60

0.26

1.40 Nws

0.030 Nws

414 ib

517 ib

X 65

0.26

1.45 Nws

0.030 Nws

448 ib

531 ib

X 70

0.26

1.65 ib

0.030 Nws

483 ib

565 ib

Raws li API 5L tus qauv, peb cov kav welded kav muaj nyob rau hauv ntau yam qauv, xws li API 5L X42, API 5L X52 thiab API 5L X60.Cov qauv no sawv cev rau qhov tsis tshua muaj zog ntawm cov yeeb nkab, muab kev nkag siab zoo ntawm nws qhov kev ua tau zoo.Txawm hais tias koj xav tau piping rau ib qhov project me lossis kev ua haujlwm loj, peb cov qauv sib txawv tuaj yeem ua tau raws li koj xav tau.

API 5L X42 qauv paub txog lawv qhov zoo tshaj plaws weldability thiab siab zog.Nws yog qhov zoo tagnrho rau cov haujlwm uas xav tau kev thauj mus los ntawm cov roj av, roj, thiab lwm yam dej.Cov qauv no muaj kev tiv thaiv corrosion tshwj xeeb thiab cov khoom siv kho kom zoo nkauj kom xa cov kev ua haujlwm ntev, ua kom muaj kev ncaj ncees ntawm cov roj thiab cov roj xa mus.

Rau cov haujlwm uas xav tau kev ua haujlwm siab dua, tus qauv API 5L X52 yog qhov kev xaiv zoo tshaj plaws.Lub raj xa dej yog tsim los tiv thaiv kev kub ntxhov ntau dua thiab qhov kub thiab txias, kom ntseeg tau tias kev thauj mus los ntawm cov roj thiab roj muaj txiaj ntsig zoo.Nws lub zog zoo tshaj plaws tso cai rau nws los daws cov teeb meem nyuaj, ua kom zoo, tsis muaj kev cuam tshuam.

API 5L X60 qauv coj kev ua tau zoo mus rau qib tom ntej.Nrog nws qhov tshwj xeeb tawm los lub zog thiab txhim kho toughness, cov yeeb nkab haum rau siv txawm tias qhov kev xav tau tshaj plaws.Nws yog tsim los tswj cov haujlwm loj uas xav tau kev thauj mus los ntawm cov roj thiab roj ntau ntau.

Xaiv peb API 5L kab yeeb nkab txhais tau tias kev nqis peev hauv cov khoom lag luam uas lav zoo tshaj thiab kev ua tau zoo.Peb txoj kev mob siab rau kev ua tau zoo yog pom tseeb hauv txhua qhov ntawm peb cov kav dej, los ntawm kev tsim kho seamless mus rau peb lub peev xwm ua tau raws li cov qauv thoob ntiaj teb.Nrog nws lub zog zoo dua thiab ua haujlwm ntev, cov khoom no ua kom muaj kev nyab xeeb thiab kev thauj mus los ntawm cov roj thiab roj, ua rau koj muaj kev thaj yeeb nyab xeeb.

Hauv luv luv, API 5L kab yeeb nkab tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov roj thiab cov kav xa hluav taws xob nrog nws cov qauv nplua nuj thiab zoo heev.Los ntawm kauv submerged arc vuam, nws muab unparalleled lub zog thiab durability.Txawm hais tias koj xav tau cov yeeb nkab rau ib qhov project me lossis loj, peb cov welded steel yeeb nkab uas tsim los rau API 5L cov qauv lav kev ua tau zoo.Peev rau peb API 5L kab yeeb nkab thiab paub qhov txawv ntawm qhov zoo thiab kev ua tau zoo.

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