API 5L Kab Yeeb Rau Roj Pipelines
API 5L kab yeeb nkab yog lub cim ntawm kev ua tau zoo hauv kev lag luam. Cov raj xa dej tuaj yeem tiv thaiv qhov siab thiab huab cua sov heev, ua kom muaj kev nyab xeeb thiab siv tau zoo ntawm cov roj thiab nkev.
Cov lus 2 lub cev thiab tshuaj ntawm cov kav hlau (GB / T3091-2008, GB / T9711 thiab API spec 5L) | ||||||||||||||
Lub hom phiaj | Qib hlau | Tshuaj txhuam khoom (%) | Cov Cuab Yeej Tensile | Charpy (v nepch) cuam tshuam kev xeem | ||||||||||
c | Mn | p | s | Si | Lwm | Yield zog (mpa) | Tensile lub zog (mpa) | (L0 = 5.65 √ab nqi (%) | ||||||
tus zuag | tus zuag | tus zuag | tus zuag | tus zuag | lub min | tus zuag | lub min | tus zuag | D ≤ 168.3mm | D> 168.3mm | ||||
GB / T3091 -2008 | Q215a | ≤ 0.15 | 0.25 <1.20 | 0.045 | 0.050 | 0.35 | Ntxiv NB \ V \ TI nyob rau hauv raws li GB / T1591-94 | 215 | 335 | 15 | 31 | |||
Q215B | ≤ 0.15 | 0.25-0.55 | 0.045 | 0.045 | 0.035 | 215 | 335 | 15 | 31 | |||||
Q235A | ≤ 0.22 | 0.30 <0.305 | 0.045 | 0.050 | 0.035 | 235 | 375 | 15 | 26 | |||||
Q235b | Ent 0.20 | 0.30 ≤ 1.80 | 0.045 | 0.045 | 0.035 | 235 | 375 | 15 | 26 | |||||
Q295A | 0.16 | 0.80-1.50 | 0.045 | 0.045 | 0.55 | 295 | 390 | 13 | > 23 | |||||
Q295B | 0.16 | 0.80-1.50 | 0.045 | 0.040 | 0.55 | 295 | 390 | 13 | > 23 | |||||
Q345a | 0.20 | 1.00-1.60 | 0.045 | 0.045 | 0.55 | 345 | 510 | 13 | > 21 | |||||
Q345b | 0.20 | 1.00-1.60 | 0.045 | 0.040 | 0.55 | 345 | 510 | 13 | > 21 | |||||
GB / T9711-2011 (PSL1) | L175 | 0.21 | 0.60 | 0.030 | 0.030 | Yeem ntxiv ib qho ntawm NB \ v \ ti ntsiab lossis ib qho kev sib xyaw ntawm lawv | 175 | 310 | 27 | Ib lossis ob ntawm kev ntsuas qhov nyuaj ntawm kev cuam tshuam lub zog thiab cov chaw pov tseg. Rau L555, saib tus qauv. | ||||
L210 | 0.22 | 0.90 | 0.030 | 0.030 | 210 | 335 | 25 | |||||||
L245 | 0.26 | 1.20 | 0.030 | 0.030 | 245 | 415 | 21 | |||||||
L290 | 0.26 | 1.30 | 0.030 | 0.030 | 290 | 415 | 21 | |||||||
L320 | 0.26 | 1.40 | 0.030 | 0.030 | 320 | Yam 435 | 20 | |||||||
L360 | 0.26 | 1.40 | 0.030 | 0.030 | 360 | 460 | 19 | |||||||
L390 | 0.26 | 1.40 | 0.030 | 0.030 | 390 | 390 | 18 | |||||||
L415 | 0.26 | 1.40 | 0.030 | 0.030 | 415 | 520 | 17 | |||||||
L450 | 0.26 | 1.45 | 0.030 | 0.030 | 450 | 535 | 17 | |||||||
L485 | 0.26 | 1.65 | 0.030 | 0.030 | 485 | 570 | 16 | |||||||
API 5L (PSL 1) | A25 | 0.21 | 0.60 | 0.030 | 0.030 | Rau qib b steel, nb + v ≤ 0.03%; yeem ntxiv NB lossis V lossis lawv cov v + ≤ 0.15% | 172 | 310 | (L0 = 50.8mm) yuav tsum xam raws li cov qauv hauv qab no: e = 19444 .2 / Siv cov qauv ntawm lub zog hauv Mpa | Tsis muaj ib qho lossis ib qho lossis ob qho tib si ntawm cov hluav taws xob cuam tshuam thiab thaj chaw shearing yog qhov yuav tsum tau ua raws li kev ntsuas tawv. | ||||
A | 0.22 | 0.90 | 0.030 | 0.030 | 207 | 331 | ||||||||
B | 0.26 | 1.20 | 0.030 | 0.030 | 241 | 414 | ||||||||
X42 | 0.26 | 1.30 | 0.030 | 0.030 | 290 | 414 | ||||||||
X46 | 0.26 | 1.40 | 0.030 | 0.030 | 317 | 434 | ||||||||
X52 | 0.26 | 1.40 | 0.030 | 0.030 | 359 | 455 | ||||||||
X56 | 0.26 | 1.40 | 0.030 | 0.030 | 386 | 490 | ||||||||
X60 | 0.26 | 1.40 | 0.030 | 0.030 | 414 | 517 | ||||||||
X 65 | 0.26 | 1.45 | 0.030 | 0.030 | 448 | 531 | ||||||||
X70 | 0.26 | 1.65 | 0.030 | 0.030 | 483 | 565 |
Raws li API 5L tus qauv, peb cov kauv welded kav dej muaj nyob rau hauv ntau yam qauv, suav nrog API 5L X42, API 5 thiab API 5L X60. Cov qauv no sawv cev cov khoom muaj zog tsawg zog ntawm cov yeeb nkab, muab kev nkag siab rau koj ntawm nws qhov kev ua tau zoo. Txawm hais tias koj xav tau piping rau ib qhov project me me lossis kev ua haujlwm loj, peb cov qauv sib txawv tuaj yeem ua tau txhua yam koj cov kev xav tau.

API 5L X42 cov qauv yog paub rau lawv cov weldability zoo heev thiab muaj zog siab. Nws yog qhov zoo tagnrho rau cov dej num uas xav tau kev thauj mus los ntawm nkev roj, roj, thiab lwm yam dej. Cov qauv no muaj kev zam tshwj xeeb corrosion thiab cov khoom siv tau zoo tshaj plaws kom xa cov kev ua tau zoo ntev, kom muaj kev sib kis tau roj thiab roj.
Rau cov phiaj xwm xav tau kev ua haujlwm siab dua, tus qauv APIx 5L X52 yog qhov kev xaiv zoo tshaj plaws. Cov raj xa dej yog tsim los tiv thaiv kev ntsuas siab dua thiab huab cua sov ntau dua, kom muaj kev ntseeg siab thiab muaj txiaj ntsig roj thiab roj tsheb thauj khoom. Nws lub zog zoo tshaj rau nws los lis cov xwm txheej nyuaj, ua kom du, tsis muaj kev cuam tshuam ntws.
Tus API 5L X60 yuav siv cov kev ua tau zoo rau qib tom ntej. Nrog nws Advental tawm lub zog zog thiab ua kom nruj, cov yeeb nkab tsim nyog rau kev siv hauv txawm tias feem ntau xav tau ib puag ncig. Nws yog tsim los tswj cov haujlwm loj-uas xav tau kev thauj mus los ntawm cov roj thiab roj av loj.
Xaiv peb API 5L kab yeeb txhais tau tias nqis peev hauv cov khoom lag luam uas guarantees zoo thiab ua tau zoo. Peb txoj kev mob siab rau qhov zoo tshaj plaws yog tshwm sim ntawm peb cov raj xa dej, los ntawm kev tsim kho kom zoo rau peb lub peev xwm los ntsib thiab tshaj rau cov qauv thoob ntiaj teb. Nrog nws lub zog zoo dua thiab lub zog ruaj khov, cov khoom no ua kom muaj kev nyab xeeb thiab cov roj, muab kev thaj yeeb nyab xeeb rau koj.
Nyob rau hauv luv luv, api 5L kab yeeb tau dhau los ua qhov kawg ntawm kev xaiv rau cov roj thiab roj kev kis cov raj kav nrog nws cov nplua nuj qauv thiab cov khoom muaj nuj nplua nuj. Los ntawm cov kauv submerged arc vuam, nws muab cov tsis muaj zog thiab lub zog ruaj khov. Txawm hais tias koj xav tau cov yeeb nkab rau qhov phiaj xwm me me lossis loj, peb cov kauv welded steel yeeb nkab txhim kho kev ua tau zoo. Nqis peev pab rau peb API 5L kab yeeb nkab thiab kev paub qhov sib txawv hauv kev ua tau zoo thiab ua tau zoo.