API 5L X60 (L415) yog ib txoj kab yeeb nkabnrog rau qhov tsawg kawg nkaus tawm lub zog ntawm 60,200 (415 MPa) rau siv nyob rau hauv pipeline tsheb thauj mus los hauv kev lag luam roj thiab roj.
X 60tuaj yeem ua seamless lossis ntau hom welded steel tubing, feem ntau LSAW (SAWL), SSAW (SAWH), thiab ERW.
Vim nws lub zog siab thiab ua haujlwm ntev, X60 raj xa dej feem ntau yog siv rau cov kav dej hauv cheeb tsam mus ntev lossis kev thauj mus los los ntawm txoj kev nyuaj thiab lwm qhov chaw xav tau.
Botop Steelyog ib lub chaw tsim khoom ntawm tuab-walled loj-inch ob-sided submerged arc LSAW steel yeeb nkab nyob rau hauv Suav teb.
·Qhov chaw: Cangzhou City, Hebei Province, Suav teb;
·Kev nqis peev tag nrho: 500 lab RMB;
·Factory cheeb tsam: 60,000 square meters;
·Muaj peev xwm tsim tau txhua xyoo: 200,000 tons ntawm JCOE LSAW steel kav;
·Khoom siv: Advanced ntau lawm thiab cov khoom siv kuaj;
·Tshwj xeeb: LSAW steel yeeb nkab ntau lawm;
·Daim ntawv pov thawj: API 5L tau ntawv pov thawj.
Kev Xa Khoom
Raws li kev xa khoom thiab qib PSL, X60 tuaj yeem faib raws li hauv qab no:
PSL1: x60 los yog L415;
PSL2: X60N, X60Q, X60M los yog L415N, L415Q, L415M.
N: Qhia normalization ntawm cov khoom.Los ntawm cua sov hlau mus rau qhov kub thiab txias tom qab cua txias.Txhawm rau txhim kho microstructure thiab mechanical zog ntawm steel thiab kom nws toughness thiab sib xws.
Q: Stands rau Quenching thiab Tempering.Tempering ntawm steel los ntawm cua sov nws mus rau ib tug tej yam kub, txias nws sai sai, thiab ces cua sov nws dua mus rau ib tug qis kub.Txhawm rau kom tau txais qhov sib npaug ntawm cov cuab yeej tshwj xeeb, xws li lub zog siab thiab toughness.
M: Qhia txog kev kho cua sov.Kev sib xyaw ua ke ntawm kev kho cua sov thiab machining kom zoo rau microstructure thiab cov khoom ntawm cov hlau.Nws muaj peev xwm ua kom lub zog thiab toughness ntawm cov hlau thaum tuav cov khoom siv vuam zoo.
API 5L X60 Manufacturing Txheej txheem
Txais steel raj tsim txheej txheem rau X60
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.
Qhov zoo ntawm SAWL (LSAW)
Yog tias koj xav tau txoj kab uas hla loj tuab phab ntsa steel yeeb nkab, thawj qhov kev xaiv yogSAWL (LSAW) steel yeeb nkab.LSAW steel yeeb nkab tuaj yeem ua rau qhov ntau thiab tsawg txog 1500mm hauv txoj kab uas hla thiab 80mm hauv phab ntsa tuab, uas muaj peev xwm ua tau raws li qhov xav tau ntawm cov kav dej ntev rau cov dej num loj.
Tsis tas li ntawd, thaum lub sij hawm tsim cov txheej txheem, LSAW steel yeeb nkab txais ob-sided submerged arc vuam (DSAW) txheej txheem, uas ua kom qhov zoo ntawm weld seam.
API 5L X60 Chemical Composition
PSL1 yog qhov yooj yim dua li PSL2 hais txog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab lwm yam yuav tsum tau ua.
Qhov no yog vimPSL1sawv cev rau tus qauv qib zoo rau cov yeeb nkab steel yeeb nkab, thaumPSL2tuaj yeem pom raws li kev hloov kho tshiab ntawm PSL1, uas muaj cov kev qhia tshwj xeeb tshaj plaws thiab kev tswj hwm nruj dua.
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.)
Nws yuav tsum tau txiav txim siab los ntawm kev sib tham thiab hloov kho kom haum raws li cov txheej txheem tshuaj muaj pes tsawg leeg saum toj no.
API 5L X60 Mechanical Properties
Tensile Properties
Kev ntsuas tensile yog qhov kev sim tseem ceeb rau kev ntsuas cov khoom siv hluav taws xob ntawm cov raj hlau.Qhov kev sim no tso cai rau kev txiav txim siab ntawm qhov tseem ceeb ntawm cov khoom siv, suav nrogyield zog, tensile zog, thiab ekev xav ntev.
PSL1 X60 Tensile Properties
PSL2 X60 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
Cov kev sim hauv qab nosiv rau SAW steel yeeb nkab hom nkaus xwb.
Weld qhia dabtsi yog khoov kuaj;
Cold-formed welded yeeb nkab hardness kuaj;
Macro soj ntsuam ntawm welded seam;
thiab tsuas yog rau PSL2 steel yeeb nkab: CVN cuam tshuam kuaj thiab DWT xeem.
Cov khoom kuaj thiab ntsuas zaus rau lwm hom yeeb nkab tuaj yeem pom hauv Cov Lus 17 thiab 18 ntawm API 5L tus qauv.
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
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.
Qhia tawm sab nraud thiab phab ntsa Thickness
Cov nqi tsim nyog rau kev teev sab nraud diameters thiab teev cov phab ntsa thicknesses ntawm cov yeeb nkab steel yog muab rau hauvISO 4200 UASthiabASME B36.10M.
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.
X60 Steel sib npaug rau dab tsi?
Qhov txawv ntawm API 5L X60 thiab X65 yog dab tsi?
