API 5L Qib B PSL-1 Pipe yog dab tsi?
API 5L yog American Petroleum Institute specification rau kab yeeb nkab siv thauj roj, roj thiab dej. Qib B yog lub hauv paus carbon steel qib ntawm cov kev qhia tshwj xeeb, yuav tsum muaj lub zog qis kawg nkaus ntawm 35,000 psi, kwv yees li 245 MPa, thiab lub zog tensile yam tsawg kawg nkaus ntawm 60,000 psi, kwv yees li 415 MPa. PSL-1, los yog Product Specification Level 1, yog tus qauv zoo tshaj plaws uas npaj rau cov kev pabcuam kev sib kis thiab kev xa khoom xa tuaj uas tsis tas yuav tsum muaj cov txheej txheem ntxiv ntawm kev tswj cov pob txha.
Cov khoom siv ib txwm muaj yog seamless carbon steel yeeb nkab ntawm 51 hli sab nraud txoj kab uas hla nrog 3.2 hli phab ntsa tuab, nkag rau hauv 6 meter ntev ntev nrog cov xaus, tsim rau cov kev cai seem ntawm ASME B36.10. Plain xaus txhais tau hais tias cov yeeb nkab xa nrog square txiav xaus yam tsis muaj bevel lossis xov, npaj rau kev sib koom ua ke los yog teb txiav thiab vuam npaj.
Tshuaj muaj pes tsawg leeg
Cov chemistry ntawm Qib B yog tswj kom sib npaug zog, weldability thiab formability. Cov kev txwv hauv qab no qhia txog PSL-1 cov cai rau cov khoom lag luam seamless.
| Element | Qhov siab tshaj plaws, % |
|---|---|
| Cov pa roj carbon C | 0.28 |
| Manganese Mn | 1.20 |
| Phosphorus P | 0.030 |
| Sulfur S | 0.030 |
Cov txiaj ntsig no ua kom cov pa roj carbon sib npaug qis txaus rau kev sib tw vuam yam tsis muaj preheat nyob rau hauv feem ntau cov neeg mob, thaum tseem xa lub zog yuav tsum tau nyob rau hauv lub kub - dov los yog normalized mob.
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog, min | 35,000 psi, 245 MPa |
| Tensile zog, min | 60,000 psi, 415 MPa |
| Elongation | Ib lub rooj hauv API 5L, nyob ntawm phab ntsa tuab thiab ntsuas qhov ntev |
Dimensions thiab ASME B36.10
ASME B36.10 yog tus qauv dav rau welded thiab seamless wrought steel yeeb nkab, npog nominal yeeb nkab qhov ntau thiab tsawg los ntawm NPS 1/8 mus txog qhov loj diameters, nrog rau sab nraud diameters, phab ntsa thickness teem sij hawm thiab theoretical luj. Nws yog cov ntaub ntawv siv los txhais cov OD thiab phab ntsa tuab ua ke rau API 5L yeeb nkab hauv qhov ntau thiab tsawg, thiab cov metric sib npaug feem ntau muab rau tib lub sijhawm loj.
| Yam khoom | Tus nqi |
|---|---|
| Sab nraud txoj kab uas hla | 51mm ib |
| Phab ntsa thickness | 3.2mm ib |
| Ntev | 6 m fix |
| Xaus tiav | Plain ends, PE |
| Hom | Seamless |
| Txuj | API 5L Qib B PSL-1, ASME B36.10 |
Rau cov kab me me xws li 51 hli, phab ntsa tuab ntawm 3.2 hli sib haum rau qhov nruab nrab- lub sijhawm hnyav thiab muab qhov sib npaug ntawm qhov muaj peev xwm, qhov hnyav thiab tus nqi.
Tej kev siv
Roj thiab roj sib sau cov kab thiab cov kav xa hluav taws xob tsis yog -cov kev pabcuam qaub.
Cov kav dej thiab cov kav dej, suav nrog cov kev faib hauv nroog.
General industrial piping, compressed air, thiab utility systems uas carbon steel kab yeeb nkab tau txais.
Kev siv cov qauv thiab kev siv tshuab qhov twg txhim khu kev qha, yooj yim weldable carbon steel raj ntawm lub zog paub yog xav tau.
Xaiv thiab tuav cov ntsiab lus
Paub meej tias qhov project specification xav tau PSL-1 lossis PSL-2. PSL-2 ntxiv cov tshuaj txwv nruj dua, kev tswj hwm cov pa roj carbon sib npaug thiab, qhov pom zoo, kev sim cuam tshuam thiab lub zog siab tshaj plaws, thiab feem ntau tau teev tseg rau cov ntug dej hiav txwv, kev pabcuam qaub thiab kev ua haujlwm siab dua.
Qhia qhov kawg tiav kom meej meej: qhov xaus rau lub pob tw vuam lossis cov khoom siv sib txuas, beveled xaus rau kev vuam, thiab threaded thiab txuas xaus tsuas yog thaum tus tsim hu rau lawv.
Txheeb xyuas qhov sib haum nrog lub micrometer thiab caliper ntawm daim ntawv txais nyiaj, thiab xyuas tias daim ntawv pov thawj hydrostatic test, cov ntaub ntawv tshuaj thiab tensile sib phim tus naj npawb ntawm cov kav xa tawm.
Cov lus nug nquag
Qhov txawv ntawm PSL-1 thiab PSL-2 yog dab tsi?
PSL-1 yog tus qauv zoo qib nrog cov ntsiab lus chemistry thiab tensile yuav tsum. PSL-2 txwv nruj dua ntawm cov pa roj carbon, phosphorus thiab sulfur, ntxiv cov pa roj carbon sib npaug tswj, feem ntau yuav tsum tau kuaj xyuas qhov cuam tshuam Charpy, thiab qhia txog cov txiaj ntsig thiab tensile ua ib pawg ntau dua li qhov tsawg kawg nkaus xwb.
API 5L Qib B yeeb nkab puas tuaj yeem welded?
Yog lawm, Qib B yog cov hlau uas tuaj yeem siv tau. Tus qauv cellulosic lossis qis- hydrogen electrodes thiab cov txheej txheem vuam siv dav dav siv, thiab preheat feem ntau tsis tas yuav tsum tau rau cov phab ntsa nyias mus rau nruab nrab hauv huab cua sov.
Puas yog API 5L Qib B zoo ib yam li ASTM A106 Qib B?
Ob leeg yog cov zoo sib xws cov pa roj carbon steel, tab sis A106 Qib B yog cov yeeb nkab seamless rau siab - qhov kev pab cuam kub nrog silicon yuav tsum tau thiab tau teev tseg los ntawm ASTM A106, thaum API 5L Qib B yog cov kab yeeb nkab qib npog ob qho tib si seamless thiab welded khoom. Qee zaum lawv tau hloov pauv hauv kev coj ua, tab sis txoj cai tswj hwm thiab kev pabcuam yuav tsum tau kuaj xyuas ua ntej hloov pauv.
Plain xaus PE txhais li cas?
Plain xaus txhais tau hais tias cov yeeb nkab kawg yog txiav square thiab sab laug tsis npaj, tsis muaj bevel, xov los yog coupling. Qhov no yog qhov kawg kawg rau kab yeeb nkab uas yuav pob tw welded, flanged los yog koom nrog cov neeg kho tshuab couplings ntawm qhov chaw.
Cov kev ntsuam xyuas dab tsi yog muab rau cov yeeb nkab?
Cov ntaub ntawv muab khoom siv xws li daim ntawv pov thawj zeb kuaj nrog cov tshuaj ntsuam xyuas thiab cov txiaj ntsig tensile, daim ntawv pov thawj hydrostatic test, cov ntaub ntawv tshuaj xyuas qhov ntev, thiab qhov twg tau teev tseg, tsis yog - cov ntaub ntawv kuaj xyuas kev puas tsuaj xws li kev kuaj ultrasonic lossis eddy tam sim no.