API 5L X42, tseem hu ua L290, yog ib hom kab yeeb nkab siv hauv kev lag luam roj thiab roj.
Cov khoom siv yog aTsawg tshaj tawm lub zog ntawm 42,100 psi(290 MPa) thiab aTsawg tensile zog ntawm 60,200 psi(415 MPa).Nws yog ib qib siab dua API 5L Qib B thiab tsim nyog rau kev siv nruab nrab-lub zog.
X42 feem ntau yog tsim los ntawm Seamless, SSAW, LSAW, thiab ERW.Coatings thiab finishes muaj nyob rau hauv raws li cov kev cai thov.
Kev Xa Khoom
Nyob ntawm qhov kev xa khoom thiab qib PSL, nws tuaj yeem faib raws li hauv qab no:
PSL1: X42 lossis L290;
PSL2: X42R, X42N, X42Q, X42M los yog L290R, L290N, L290Q, L290M;
Cov tsiaj ntawv ntawm PSL2 cov lus xaus txhua tus sawv cev rau kev kho cua sov sib txawv.
R: Rolled;
N: normalizing;
Q: Quenched thiab Tempered;
M: Thermo-mechanical kev kho mob.
Kev tsim khoom
X42 tso cai rau cov txheej txheem tsim khoom hauv qab no:
Yog tias koj pom cov ntawv luv luv no nyuaj rau kev nkag siab, mus saib peb cov ntawv sau ua ke ntawmcommon abbreviations for steel kav.
Botop Steel tuaj yeem muab koj ntau qhov ntau thiab tsawg ntawm cov yeeb nkab raws li qhia hauv cov lus hauv qab no.
Peb Cov Khoom Muag
Txuj: API 5L (ISO 3183);
PSL1: X42 lossis L290;
PSL2: X42R, X42N, X42Q, X42M los yog L290R, L290N, L290Q, L290M;
Welded steel yeeb nkab:LSAW(SAWL), SSAW (HSAW), DSAW, ERW;
Seamless steel yeeb nkab:SMLS;
Cov Sijhawm Pipe: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 thiab SCH160.
Kev txheeb xyuas: STD (Standard), XS (Ntxiv Muaj Zog), XXS (Ob Tug Ntxiv Zog);
Txheej: Xim, kua roj vanish,3 LPE, FBE, 3LPP, HDPE, galvanized, epoxy zinc-nplua nuj, xis mas hnyav, thiab lwm yam.
Packing: Waterproof ntaub, rooj ntoo, steel siv los yog steel hlau bundling, yas los yog hlau yeeb nkab kawg tiv thaiv, thiab lwm yam. Customized.
Cov khoom sib xws: khoov,flanges, yeeb nkab fittings, thiab lwm yam khoom sib txuam muaj.
API 5L X42 Chemical Composition
Chemical Composition rau PSL 1 Pipe nrog t ≤ 25.0 mm (0.984 in.)
Chemical Composition rau PSL 2 Pipe nrog t ≤ 25.0 mm (0.984 in.)
Rau PSL2 steel yeeb nkab khoom soj ntsuam nrog acarbon cov ntsiab lus ≤0.12%, carbon sib npaug CEpcm uatuaj yeem suav nrog cov qauv hauv qab no:
CEpcm ua= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Rau PSL2 steel yeeb nkab khoom soj ntsuam nrog aCov ntsiab lus carbon> 0.12%, carbon sib npaug CElwjtuaj yeem suav nrog cov qauv hauv qab no:
CElwj= C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
Chemical Composition nrog t ＞ 25.0 mm (0.984 nyob rau hauv.)
Qhov no tuaj yeem sib tham los ntawm kev xa mus rau cov tshuaj muaj pes tsawg leeg saum toj no.
API 5L X42 Mechanical Properties
Tensile Properties
Kev ntsuas tensile yog ib qho kev ntsuas tseem ceeb rau cov khoom siv hluav taws xob ntawm cov raj steel, uas tuaj yeem ntsuas lub zog ntawm lub zog, lub zog tensile, thiab elongation tseem ceeb tsis.
X42 yield zog yog 42,100 psi lossis 290 MPa.
X42 tensile lub zog yog 60,200 psi lossis 415 MPa.
PSL1 X42 Tensile Properties
PSL2 X42 Tensile Properties
Nco tseg: Cov kev cai yuav tsum tau piav qhia hauv seem Mechanical Properties ntawmAPI 5L X52, uas tuaj yeem pom los ntawm nyem rau ntawm daim ntawv xiav yog tias koj xav tau.
Lwm yam Mechanical Experiments
Khoov Test
Flattening Test
Guided-bend Test
CVN Impact Test rau PSL 2 Pipe
DWT Test rau PSL 2 Welded Yeeb Nkab
Tau kawg, tsis yog txhua lub raj yuav tsum tau sim rau tag nrho cov khoom siv kho tshuab, tab sis qhov kev ntsuam xyuas raug xaiv raws li hom raj.Cov kev cai tshwj xeeb tuaj yeem pom hauv Cov Lus 17 thiab 18 ntawm API 5L tus qauv.
Koj tuaj yeem tiv tauj peb rau cov ntaub ntawv no.
Hydrostatic Test
Lub Sijhawm Xeem
Txhua qhov ntau thiab tsawg ntawm seamless thiab welded steel hlab nrog D ≤ 457 mm (18 in.):xeem lub sij hawm ≥ 5s;
Welded steel yeeb nkab D> 457 mm (18 nyob rau hauv.):xeem lub sij hawm ≥ 10s.
Kev sim ntau zaus
Txhua cov yeeb nkab steelthiab yuav tsum tsis txhob muaj qhov xau los ntawm qhov vuam lossis cov yeeb nkab lub cev thaum lub sijhawm kuaj.
Kev sim siab
Kev ntsuas hydrostatic siab P ntawm aplain-end steel yeeb nkabtuaj yeem suav tau los ntawm kev siv cov mis.
P = 2st/D
Syog lub hoop stress.tus nqi yog sib npaug rau qhov tsawg kawg nkaus tawm lub zog ntawm cov yeeb nkab steel xa feem pua, hauv MPa (psi);
tyog lub thickness ntawm phab ntsa, qhia nyob rau hauv millimeters (inch);
Dyog qhov teev sab nraud txoj kab uas hla, qhia hauv millimeters (inch).
Kev tshuaj xyuas tsis zoo
Rau SAW tubes, ob txoj kev,UT(ultrasonic testing) los yogRT(radiographic kuaj), feem ntau yog siv.
ET(electromagnetic testing) tsis siv rau SAW raj.
Welded seams ntawm welded kav ntawm qib ≥ L210 / A thiab txoj kab uas hla ≥ 60.3 mm (2.375 hauv) yuav tsum tsis txhob raug tshuaj xyuas kom tag nrho tuab thiab ntev (100%) raws li tau teev tseg.
UT cov kev xeem tsis muaj kev puas tsuaj
RT kev kuaj xyuas tsis muaj kev puas tsuaj
Tag nrho cov raj seamless ntawm PSL 2, thiab quenched thiab tempered seamless raj ntawm PSL1 Qib B, yuav tsum tau mus rau tag nrho-ntev (100 %) nondestructive xeem.
Ib qho los yog kev sib xyaw ua ke ntawm ET (Kev Ntsuas Hluav Taws Xob), UT (Ultrasonic Testing), thiab MT (Magnetic Particle Test) tuaj yeem siv rau NDT.
Dimensional Tolerances
API 5L qhov yuav tsum tau ua rau qhov ntev ntev yog cov ncauj lus kom ntxaws hauvAPI 5L Qib B.Txhawm rau kom tsis txhob rov ua dua, koj tuaj yeem nyem rau ntawm daim ntawv xiav kom pom cov ntsiab lus cuam tshuam.
API 5L Pipe Schedule Chart
Txhawm rau kom yooj yim saib thiab siv, peb tau teeb tsa cov sijhawm teem sijhawm rau PDF cov ntaub ntawv.Koj tuaj yeem rub tawm thiab saib cov ntaub ntawv no yog tias xav tau.
Tsis tas li ntawd, API 5L qhia txog qhov tso cai tau teev nyob sab nraud thiab cov phab ntsa tuab.
Dimensional Tolerances
API 5L qhov yuav tsum tau ua rau qhov ntev ntev yog cov ncauj lus kom ntxaws hauvAPI 5L Qib B.Txhawm rau kom tsis txhob rov ua dua, koj tuaj yeem nyem rau ntawm daim ntawv xiav kom pom cov ntsiab lus cuam tshuam.
Peb cov khoom muaj feem xyuam
Txij li thaum nws tsim nyob rau hauv 2014,Botop Steeltau dhau los ua tus xa khoom ntawm carbon steel yeeb nkab nyob rau sab qaum teb Tuam Tshoj, paub txog kev pabcuam zoo, cov khoom zoo, thiab cov kev daws teeb meem zoo.
Lub tuam txhab muaj ntau yam carbon steel kav thiab lwm yam khoom, xws li seamless, ERW, LSAW, thiab SSAW steel yeeb nkab, raws li zoo raws li ib tug tag nrho lineup ntawm cov yeeb nkab fittings thiab flanges.Nws cov khoom tshwj xeeb kuj suav nrog cov qib high-qib alloys thiab austenitic stainless hlau, tsim kom tau raws li qhov xav tau ntawm ntau yam kev siv kav dej.
