API 5L X42, tseem hu ua L290, yog ib hom yeeb nkab siv hauv kev lag luam roj thiab roj av.
Cov khoom siv yog iblub zog tsawg kawg nkaus ntawm 42,100 psi(290 MPa) thiab ib qholub zog tensile tsawg kawg nkaus ntawm 60,200 psi(415 MPa). Nws yog ib qib siab dua API 5L Qib B thiab tsim nyog rau cov ntawv thov nruab nrab-zog.
X42 feem ntau yog tsim tawm hauv Seamless, SSAW, LSAW, thiab ERW. Cov txheej txheem thiab cov tiav tiav muaj los ua kom tau raws li cov kev xav tau tshwj xeeb.
Cov Cai Xa Khoom
Nyob ntawm seb cov xwm txheej xa khoom thiab PSL theem, nws tuaj yeem muab faib ua pawg raws li hauv qab no:
PSL1: X42 los yog L290;
PSL2: X42R, X42N, X42Q, X42M los yog L290R, L290N, L290Q, L290M;
Cov ntawv ntawm PSL2 suffix txhua tus sawv cev rau kev kho cua sov sib txawv.
R: Dov;
N: Ua kom zoo li qub;
Q: Tua thiab Tempered;
MKev kho cua sov thiab tshuab.
Cov Txheej Txheem Tsim Khoom
X42 tso cai rau cov txheej txheem tsim khoom hauv qab no:
Yog tias koj pom cov lus luv luv no nyuaj rau nkag siab, mus saib peb cov ntawv sau ua ke ntawmCov lus luv luv rau cov kav hlau.
Botop Steel tuaj yeem muab ntau yam yeeb nkab loj rau koj raws li qhia hauv lub rooj hauv qab no.
Peb Cov Khoom Siv
Tus Qauv: API 5L (ISO 3183);
PSL1: X42 lossis L290;
PSL2: X42R, X42N, X42Q, X42M lossis L290R, L290N, L290Q, L290M;
Cov yeeb nkab hlau vuam:LSAW(SAWL), SSAW (HSAW), DSAW, ERW;
Cov yeeb nkab hlau tsis muaj qhov txuas:SMLS;
Cov Teem Caij Yeeb Nkab: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 thiab SCH160.
Kev Txheeb Xyuas: STD (Tus Qauv), XS (Muaj Zog Ntxiv), XXS (Ob Chav Muaj Zog Ntxiv);
Txheej: Xim, kua roj vanish,3LPE, FBE, 3LPP, HDPE, galvanized, epoxy zinc-nplua nuj, cement weighted, thiab lwm yam.
Kev Ntim Khoom: Daim ntaub tsis muaj dej, lub thawv ntoo, siv hlau los yog hlau xaim, yas los yog hlau yeeb nkab kawg tiv thaiv, thiab lwm yam. Kho kom haum.
Cov Khoom Sib Xws: Khoov,cov flanges, cov yeeb nkab fittings, thiab lwm yam khoom sib phim muaj.
API 5L X42 Cov Tshuaj Lom Zem
Cov Tshuaj Lom Zem rau PSL 1 Yeeb Nkab nrog t ≤ 25.0 hli (0.984 nti.)
Cov Tshuaj Lom Zem rau PSL 2 Yeeb Nkab nrog t ≤ 25.0 hli (0.984 nti.)
Rau cov khoom siv yeeb nkab PSL2 uas tau soj ntsuam nrog ib qhoCov ntsiab lus carbon ntawm ≤0.12%, cov pa roj carbon sib npaug CEPCMtuaj yeem suav tau siv cov qauv hauv qab no:
CEPCM= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Rau cov khoom siv yeeb nkab PSL2 uas tau soj ntsuam nrog ib qhoCov ntsiab lus carbon > 0.12%, cov pa roj carbon sib npaug CEllwtuaj yeem suav tau los ntawm kev siv cov qauv hauv qab no:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
Cov Tshuaj Sib xyaw nrog t > 25.0 hli (0.984 nti)
Qhov no tuaj yeem sib tham tau los ntawm kev xa mus rau cov tshuaj lom neeg sib xyaw saum toj no.
API 5L X42 Cov Khoom Siv Kho Tshuab
Cov Khoom Tensile
Qhov kev xeem tensile yog qhov kev xeem tseem ceeb rau cov khoom siv kho tshuab ntawm cov kav hlau, uas muaj peev xwm ntsuas qhov muaj zog, lub zog tensile, thiab cov yam ntxwv tseem ceeb ntawm elongation.
X42 lub zog tawm los yog 42,100 psi lossis 290 MPa.
Lub zog tensile ntawm X42 yog 60,200 psi lossis 415 MPa.
PSL1 X42 Cov Khoom Siv Tensile
PSL2 X42 Cov Khoom Siv Tensile
Lus CimCov kev cai tau piav qhia meej hauv ntu Mechanical Properties ntawmAPI 5L X52, uas tuaj yeem saib tau los ntawm kev nyem rau ntawm daim ntawv xiav yog tias koj xav tau.
Lwm Yam Kev Sim Txog Tshuab
Kev Ntsuas Khoov
Kev Ntsuas Kom Sib Nqus
Kev Ntsuas Khoov Uas Tau Qhia
Kev Ntsuas Qhov Cuam Tshuam CVN rau PSL 2 Yeeb Nkab
Kev Ntsuas DWT rau PSL 2 Welded Pipe
Tau kawg, tsis yog txhua lub raj yuav tsum tau kuaj xyuas tag nrho cov khoom siv kho tshuab, tab sis cov kev kuaj ntawd raug xaiv raws li hom raj. Cov kev cai tshwj xeeb tuaj yeem pom hauv Cov Lus Qhia 17 thiab 18 ntawm API 5L tus qauv.
Koj tuaj yeem tiv tauj peb kom tau cov ntaub ntawv no.
Kev Ntsuas Hydrostatic
Lub Sijhawm Xeem
Txhua qhov loj ntawm cov kav hlau tsis muaj qhov thiab cov kav hlau txuas nrog D ≤ 457 hli (18 nti):lub sijhawm xeem ≥ 5s;
Cov yeeb nkab hlau vuam D > 457 mm (18 nti):lub sijhawm xeem ≥ 10s.
Kev Sim Zaus
Txhua lub yeeb nkab hlauthiab yuav tsum tsis muaj qhov xau ntawm lub vuam lossis lub yeeb nkab thaum lub sijhawm sim.
Kev sim siab
Lub zog kuaj hydrostatic P ntawm ayeeb nkab hlau tiaj tiajtuaj yeem suav los ntawm kev siv cov mis.
P = 2St/D
Syog qhov kev ntxhov siab ntawm lub hoop. tus nqi yog sib npaug rau qhov tsawg kawg nkaus ntawm lub zog ntawm cov yeeb nkab hlau xa feem pua, hauv MPa (psi);
tyog qhov tuab ntawm phab ntsa uas tau teev tseg, qhia hauv millimeters (nti);
Dyog qhov txoj kab uas hla sab nraud uas tau teev tseg, qhia hauv millimeters (nti).
Kev Tshuaj Xyuas Tsis Muaj Kev puas tsuaj
Rau cov kav dej SAW, ob txoj kev,UT(kev kuaj mob ultrasound) los yogRT(kev kuaj mob radiograph), feem ntau yog siv.
ET(kev sim electromagnetic) tsis siv tau rau SAW raj.
Cov kab txuas uas vuam rau ntawm cov kav dej vuam ntawm qib ≥ L210 / A thiab txoj kab uas hla ≥ 60.3 hli (2.375 hauv) yuav tsum raug tshuaj xyuas tsis muaj kev puas tsuaj rau tag nrho cov tuab thiab ntev (100%) raws li tau teev tseg.
Kev kuaj mob UT uas tsis ua puas tsuaj
Kev kuaj mob RT uas tsis ua puas tsuaj
Txhua lub raj xa dej tsis muaj qhov txuas ntawm PSL 2, thiab cov raj xa dej tsis muaj qhov txuas ntawm PSL1 Qib B uas tau quenched thiab tempered, yuav tsum raug kuaj xyuas tag nrho (100%) tsis muaj kev puas tsuaj.
Ib qho los yog kev sib xyaw ua ke ntawm ET (Kev Ntsuas Hluav Taws Xob), UT (Kev Ntsuas Ultrasonic), thiab MT (Kev Ntsuas Cov Khoom Sib Nqus) siv tau rau NDT.
Kev kam rau siab ntawm qhov ntev
Cov kev cai API 5L rau kev kam rau siab ntawm qhov ntev tau piav qhia meej hauvAPI 5L Qib BYuav kom tsis txhob rov ua dua, koj tuaj yeem nyem rau ntawm daim ntawv xiav kom pom cov ntsiab lus tseem ceeb.
Daim Ntawv Teev Sijhawm API 5L Yeeb Nkab
Rau qhov yooj yim ntawm kev saib thiab siv, peb tau teeb tsa cov ntaub ntawv PDF teem sijhawm. Koj tuaj yeem rub tawm thiab saib cov ntaub ntawv no yog tias xav tau.
Ntxiv rau, API 5L qhia txog qhov tso cai sab nraud uas tau teev tseg thiab qhov tuab ntawm phab ntsa uas tau teev tseg.
Kev kam rau siab ntawm qhov ntev
Cov kev cai API 5L rau kev kam rau siab ntawm qhov ntev tau piav qhia meej hauvAPI 5L Qib BYuav kom tsis txhob rov ua dua, koj tuaj yeem nyem rau ntawm daim ntawv xiav kom pom cov ntsiab lus tseem ceeb.
Peb Cov Khoom Muaj Feem Xyuam
Txij li thaum nws tau tsim tsa xyoo 2014,Botop Hlautau dhau los ua tus thawj coj ntawm cov yeeb nkab hlau carbon hauv Northern China, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav.
Lub tuam txhab muaj ntau yam yeeb nkab hlau carbon thiab cov khoom lag luam cuam tshuam, suav nrog cov yeeb nkab hlau seamless, ERW, LSAW, thiab SSAW, nrog rau cov khoom siv yeeb nkab thiab cov flanges tiav. Nws cov khoom tshwj xeeb kuj suav nrog cov hlau alloys zoo thiab cov hlau stainless austenitic, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam haujlwm yeeb nkab.
