Tom ntej: Qhov twg X52 Fits hauv API 5L
API 5L yog tus txheej txheem tswj hwm txoj kab yeeb nkab hauv kev thauj mus los ntawm roj thiab roj, thiab nws cov qhab nia muaj npe rau lawv lub zog tawm los. X52 yog ib qho kev qhia tsawg kawg nkaus lub zog ntawm 52,000 psi, txog 360 MPa, thiab lub zog tensile tsawg kawg nkaus ntawm 460 MPa. Cov qib nyob nruab nrab ntawm API 5L ntaiv: muaj zog dua qib B thiab X42, tsis tau weldable thiab pheej yig dua li qib siab - zog X65 thiab X70. Qhov nyiaj tshuav no ua rau X52 yog ib qho ntawm cov ntaub ntawv nquag tshaj plaws rau nruab nrab - cov kab sib kis loj, cov kav dej ua kom zoo, thiab cov txheej txheem cog kev pabcuam.
Tshuaj muaj pes tsawg leeg
X52 yog ib qho zoo -cov pa roj carbon monoxide-manganese hlau, feem ntau microalloyed nrog niobium, vanadium, los yog titanium los ua kom zoo dua cov nplej thiab nce lub zog tsis muaj cov pa roj carbon ntau. Cov kev txwv rau PSL2 yog carbon 0.24 feem pua siab tshaj plaws, manganese 1.40 feem pua siab tshaj plaws, thiab cov kev txwv me me ntawm phosphorus thiab sulfur. Qhov sib npaug ntawm cov pa roj carbon monoxide yog tswj los lav qhov kev sib tw, thiab rau PSL2 qhov kev txwv CEV yog ib feem ntawm qhov kev qhia tshwj xeeb. Cov hlau tuaj yeem muab nkag rau hauv qhov normalized, normalized-thiab{11}}tempered, los yog thermomechanically dov, nrog rau qhov kawg muab qhov zoo tshaj plaws ua ke ntawm lub zog thiab toughness.
Mechanical Properties
| Khoom | X52 PSL2 Requirement |
|---|---|
| Qhia tawm yam tsawg kawg nkaus lub zog | 360 MPa siab |
| Tshwj xeeb yam tsawg kawg nkaus tensile zog | 460 MPa rau |
| Maximum yield zog | 530 MPa ua |
| Yield-rau-tensile ratio | Max 0.93 hli |
| Tsawg kawg elongation | Kwv yees li 20 feem pua |
| Charpy cuam tshuam | Txhais los ntawm qhov project kub |
PSL1 thiab PSL2
API 5L faib txhua qib rau hauv ob qib khoom tshwj xeeb. PSL1 txhais cov khoom siv yooj yim thiab kev sim, thiab PSL2 ntxiv cov kev txwv lub zog siab tshaj plaws, nruj dua chemistry, yuav tsum muaj kev cuam tshuam rau kev sim, thiab kev kuaj xyuas tsis muaj kev puas tsuaj. Rau cov kav dej niaj hnub no, PSL2 yog tus qauv vim tias nws muab kev puas tsuaj - tswj cov ntaub ntawv xav tau rau kev tsim kom muaj kev nyab xeeb, tshwj xeeb tshaj yog rau siab - cov kab hluav taws xob nyob ze ntawm thaj chaw muaj neeg nyob. Qhov kev xaiv qib tib yam yog li piav qhia txog ob yam khoom zoo sib txawv, thiab daim ntawv xaj yuav tsum hais txog qib.
Cov Kev Tsim Khoom thiab Cov Qauv Khoom
X52 yog muaj nyob rau hauv seamless yeeb nkab, hluav taws xob kuj welded yeeb nkab, longitudinal submerged arc welded yeeb nkab, thiab kauv welded yeeb nkab, npog diameters li ntawm 2 ntiv mus rau ntau tshaj 60 ntiv tes. Txoj kev tsim khoom raug xaiv los ntawm txoj kab uas hla, phab ntsa, thiab kev pabcuam: seamless rau cov kab me me thiab kev siab siab, ERW rau cov kab nruab nrab, thiab LSAW lossis SSAW rau cov kab loj loj. Txhua daim ntawv yuav tsum xeem dhau qhov ntsuas hydrostatic thiab ntsuas qhov ntsuas, thiab cov khoom siv welded ntxiv cov kev kuaj xyuas.
Daim ntawv thov Scenario
X52 yeeb nkab yog siv rau hauv cov roj av xa mus thiab cov kab xa tawm, cov roj sib sau ua ke thiab cov kab hauv lub cev, cov txheej txheem refinery piping, dej txhaj tshuaj, thiab cov txheej txheem casing. Nws kuj yog ib qho khoom siv rau cov yeeb nkab piles thiab dej mains qhov twg lub zog ntawm qib txo cov phab ntsa thickness thiab qhov hnyav piv nrog cov qib qis.
Cov lus nug nquag
Cov qauv siv tau yog nyob ntawm cov khoom thiab kev pabcuam: API 5L rau kab yeeb nkab, ASTM A53 thiab A106 rau carbon steel yeeb nkab, ASTM A312 thiab A213 rau stainless hlau, thiab ASME B16 series rau qhov ntev thiab fittings; qhov kev txiav txim yuav tsum npe tus qauv thiab nws tsab.
Qhov ntau thiab tsawg los ntawm qhov me me mus rau txoj kab uas hla loj ntawm cov khoom lag luam, nrog cov phab ntsa tuab qhia nyob rau hauv cov sij hawm los ntawm SCH10 txog XXS lossis hauv millimeters; qhov kev txiav txim hais txog cov kab sab nraud, phab ntsa thickness thiab ntev.
Cov qib carbon steel xws li API 5L B txog X70 thiab ASTM A106 B, alloy steels, thiab stainless qib xws li 304/304L, 316/316L thiab duplex muaj, txhua tus xa nrog cov ntawv pov thawj chemistry thiab cov khoom siv tshuab.
Txhua qhov ntau yog kuaj rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev thiab siab ncaj ncees, nrog rau kev sim hydrostatic thiab tsis yog -kev kuaj xyuas kev puas tsuaj raws li tus qauv, thiab daim ntawv pov thawj ua pov thawj cov txiaj ntsig.
Dub pleev xim rau, varnished, oiled, galvanized los yog coated nto yog muaj, nrog dawb, beveled los yog threaded xaus; yas caps thiab steel kawg tiv thaiv cov yeeb nkab thaum thauj.
Khaws cov skids tawm hauv av nrog qhov kawg tiv thaiv, kom nws qhuav thiab deb ntawm cov hlau tsis sib xws, thiab nqa cov pob khoom nrog cov hlua khi ntawm cov ntsiab lus nqa nqa kom tsis txhob muaj kev puas tsuaj.
