Tuam Tshoj API 5L 5CT Psl1 / Psl2 X42/X52/X46/X56/X60/X65/X70/X80 Seamless Kab Hlau Yeeb
Txheej txheem cej luam
Yuav kom tau txais txiaj ntsig ntawm peb qhov tshwj xeeb thiab kho kev nco qab, peb lub tuam txhab tau yeej lub koob npe nrov ntawm cov neeg siv khoom thoob plaws ntiaj teb rau API 5L 5CT Psl1 / Psl2 X42 / X52 / X46 / X56 / X60 / X65 / X70 / X80 Seamless Line Steel Cov kav dej, Txhawb nqa nrog kev ua lag luam sai tam sim no ntawm cov khoom noj ceev ceev thiab dej haus consumables thoob plaws lub tag nrho lub ntiaj teb, Peb tab tom nrhiav rau pem hauv ntej kom ua haujlwm nrog cov neeg koom tes / cov neeg siv khoom los tsim cov txiaj ntsig zoo ua ke. Peb ib txwm tsim cov thev naus laus zis tshiab los txhim kho kev tsim khoom, thiab muab cov khoom lag luam nrog cov nqi sib tw thiab zoo! Cov neeg siv khoom txaus siab yog peb qhov tseem ceeb! Koj tuaj yeem tso cai rau peb paub koj lub tswv yim los tsim cov qauv tsim tshwj xeeb rau koj tus kheej cov qauv kom tsis txhob muaj qhov zoo sib xws hauv khw! Peb yuav muab peb cov kev pabcuam zoo tshaj plaws rau koj kom txaus siab rau txhua yam koj xav tau! Thov hu rau peb tam sim ntawd!
Pipeline yeeb nkab: cov roj, roj los yog dej muab rho tawm hauv av yog thauj mus rau cov roj thiab roj kev lag luam los ntawm cov yeeb nkab yeeb nkab.Cov yeeb nkab yeeb nkab muaj ob hom seamless thiab welded yeeb nkab, cov yeeb nkab kawg muaj ib tug ca kawg, threaded kawg thiab ib Qhov (socket) kawg; hom kev sib txuas yog qhov kawg vuam, dab tshos kev sib txuas, qhov (socket) txuas thiab lwm yam.
Pipeline yeeb nkab: cov roj, roj los yog dej rho tawm hauv av yog thauj mus rau cov roj thiab roj kev lag luam los ntawm cov yeeb nkab yeeb nkab.Welded yeeb nkab yog txuas nrog fused vuam kab yeeb nkab, feem ntau qhov ntev ntev, tuaj yeem txaus siab rau cov neeg siv khoom loj, tab sis kev ruaj ntseg. tsis zoo li ib qho kev sib xyaw ua ke ntawm seamless raj, tab sis feem ntau luv luv ntawm lub seamless raj, tsis tuaj yeem txaus siab rau cov neeg siv khoom siv qhov ntev, cov neeg siv khoom siv. Cov txheej txheem yuav tsum tau txais kev sib koom ua ke siv ob qho tib si. Cov yeeb nkab yeeb nkab muaj ob hom seamless thiab welded yeeb nkab, cov yeeb nkab kawg muaj lub tiaj tiaj, threaded kawg thiab lub qhov (socket) kawg; hom kev sib txuas yog qhov kawg vuam, dab tshos kev sib txuas, qhov (socket) txuas thiab lwm yam. ntawm.
Nrog rau txoj kev loj hlob ntawm pipeline steel phaj technology thiab kev vam meej ntawm welded yeeb nkab txoj kev, welding technology, daim ntawv thov ntau yam ntawm cov yeeb nkab nrog welded yeeb nkab nyob rau hauv maj expanding, tshwj xeeb tshaj yog nyob rau hauv lub loj txoj kab uas hla welded yeeb nkab chav kawm ntawv qhov zoo ntawm ntau ntub dej, thiab tus nqi. yam tseem ceeb, welded yeeb nkab tau tseem ceeb nyob rau hauv lub tshav pob ntawm kab yeeb nkab, uas txwv txoj kev loj hlob ntawm stainless hlau seamless steel kab yeeb nkab.
API5L pipeline yeeb nkab ntau lawm yog tam sim no siv microalloying cua sov txheej txheem, stainless hlau seamless yeeb nkab tsim nqi yog ho siab tshaj cov welded yeeb nkab, thiab nrog rau kev txhim kho steel qib, xws li X80 steel qib yeeb nkab ntawm qhov txwv ntawm carbon sib npaug, cov txheej txheem pa. ntawm seamless steel yeeb nkab yog qhov nyuaj kom tau raws li cov neeg siv khoom xav tau
Kev xa cov yeeb nkab steel yog muab faib ua PSL1, PSL2 ob qib khoom, qhov sib txawv tseem ceeb yog PSL2 piv nrog PSL1 ntawm cov pa sib npaug, tawg toughness, siab tshaj tawm lub zog thiab siab tshaj tensile lub zog yuav tsum.Cov kev tswj ntawm cov teeb meem xws li phosphorus thiab sulfur yog tseem. stricter.Nondestructive xeem ntawm seamless raj yog yuav tsum tau.Cov ntsiab lus ntawm warranty thiab traceability tom qab kev sim yog yuav tsum tau.
Lub ntsiab kev ua tau zoo ntawm cov roj thiab cov kav dej rau cov hlau muaj xws li:
1. Lub zog: Cov roj thiab cov kav dej dav dav yog tsim los raws li lub zog tawm los ntawm cov hlau. Cov kav dej uas muaj zog ntau dua tuaj yeem tiv taus kev ua haujlwm ntau dua.
2. Toughness: siab zog ntawm cov yeeb nkab steel tuaj yeem ua rau txo qis ntawm cov roj thiab cov kav xa hluav taws xob sib tsoo, yog li API 5L qhia tias, ntxiv rau cov khoom siv sib xyaw ua ke, v-notch Charpy impact test thiab poob rauj kua muag kuaj yuav tsum tau ntxiv, thiab cov yeeb nkab steel yuav tsum nruj me ntsis kev sim ua ntej tawm hauv lub hoobkas.
3. Weldability: Vim muaj qhov hnyav ntawm qhov chaw rau kev tso cov kav dej, yuav tsum muaj qhov zoo weldability thaum lub taub qab vuam ntawm cov kav hlau. Cov kav dej uas tsis tshua muaj vuam yuav muaj cov kab nrib pleb ntawm vuam seam thaum vuam, uas yuav ua rau kom tawv thiab tawv ntawm vuam seam. thiab thaj chaw muaj kev kub ntxhov, thiab ua kom muaj peev xwm ntawm cov kav dej rupture.Cov qauv tsim ntawm steel weldability yog kev tswj ntawm Martensite hloov pauv taw tes thiab hardening.Raws li kev cuam tshuam ntawm alloying ntsiab ntawm martensite kev hloov pauv taw tes thiab cov kev paub dhau los, cov qauv kev suav ntawm cov pa roj carbon sib npaug tuaj yeem siv los ntsuas qhov weldability ntawm steel. Feem ntau, cov pa sib npaug yuav tsum tau tswj qis dua 0.4%. Qhov tseeb, feem ntau steel mills raug tswj qis dua 0.35%.
4. Ductility: Yog tias qhov ductility tsis txaus, nws yuav ua rau cov hlau phaj sib cais thaum lub caij txias bending los yog cambium tawg thaum lub sij hawm vuam.Yog li ntawd, API tus qauv rau welded yeeb nkab tawm ntawm qhov kev ntsuam xyuas taag flattening, tab sis kuj yuav tsum muaj cov neeg siv khoom qhia. txias dabtsi yog khoov kuaj.Qhov tseem ceeb los txhim kho cov ductility yog kom txo tau cov non-metallic inclusions nyob rau hauv steel thiab tswj lub morphology thiab tis ntawm suav nrog.
5. Corrosion kuj: thaum conveying sulfur roj thiab roj, hydrogen sulfide thiab carbon dioxide nyob rau hauv cov kua yuav ua rau hydrogen embrittlement thiab kev nyuaj siab corrosion cracking ntawm steel hlab.Kev ntsuas xws li tswj cov ntsiab lus sulfur, tswj sulfide daim ntawv thiab txhim kho toughness raws phab ntsa thickness yog. Feem ntau saws.Nws cov yam ntxwv tseem ceeb yog microalloying thiab tswj dov, uas tuaj yeem tau txais lub zog siab, siab toughness, siab plasticity thiab zoo. Weldability nyob rau hauv kub dov mob.Yuav kom ua tau raws li qhov yuav tsum tau ntawm kev ua tau zoo ntawm cov roj thiab roj pipelines rau steel, nruj alloy tsim, leej faj, phosphorus thiab lwm yam teeb meem tseem ceeb heev tswj.Feem ntau, sulfur yog tsawg tshaj li 0.01% los txhim kho lub plasticity thiab toughness ntawm steel, tshwj xeeb tshaj yog transverse toughness.
Daim ntawv thov
Lub raj xa dej yog siv los thauj cov roj, chav dej thiab cov dej tawm hauv av mus rau cov chaw lag luam roj thiab roj los ntawm cov kav dej.
Qib tseem ceeb
Qib rau API 5L kab yeeb nkab steel: Gr.B X42 X52 X60 X65 X70
Chemical Component
| Steel Qib (Steel Name) | Loj Fraction, Raws li kev ntsuas kub thiab cov khoom lag luamib, g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| mas b | mas b | min | max | max | max | max | max | |
| Seamless Yeeb Nkab | ||||||||
| L175 los yog A25 | 0.21 ib | 0.60 ib | — | 0.030 Nws | 0.030 Nws | — | — | — |
| L175P los yog A25P | 0.21 ib | 0.60 ib | 0.045 ib | 0.080 ua | 0.030 Nws | — | — | — |
| L210 los yog A | 0.22 | 0.90 ib | — | 0.030 Nws | 0.030 Nws | — | — | — |
| L245 los yog B | 0.28 ib | 1.20 | — | 0.030 Nws | 0.030 Nws | c,d | c,d | d |
| L290 los yog X42 | 0.28 ib | 1.30 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L320 los yog X46 | 0.28 ib | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L360 los yog X52 | 0.28 ib | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L390 los yog X56 | 0.28 ib | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L415 los yog X60 | 0,28e ua | 1.40 ib | — | 0.030 Nws | 0.030 Nws | f | f | f |
| L450 los yog X65 | 0,28e ua | 1.40 ib | — | 0.030 Nws | 0.030 Nws | f | f | f |
| L485 los yog X70 | 0,28e ua | 1.40 ib | — | 0.030 Nws | 0.030 Nws | f | f | f |
| Welded yeeb nkab | ||||||||
| L175 los yog A25 | 0.21 ib | 0.60 ib | — | 0.030 Nws | 0.030 Nws | — | — | — |
| L175P los yog A25P | 0.21 ib | 0.60 ib | 0.045 ib | 0.080 ua | 0.030 Nws | — | — | — |
| L210 los yog A | 0.22 | 0.90 ib | — | 0.030 Nws | 0.030 Nws | — | — | — |
| L245 los yog B | 0.26 | 1.20 | — | 0.030 Nws | 0.030 Nws | c,d | c,d | d |
| L290 los yog X42 | 0.26 | 1.30 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L320 los yog X46 | 0.26 | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L360 los yog X52 | 0.26 | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L390 los yog X56 | 0.26 | 1.40 Nws | — | 0.030 Nws | 0.030 Nws | d | d | d |
| L415 los yog X60 | 0,26e ua | 1.40 ib | — | 0.030 Nws | 0.030 Nws | f | f | f |
| L450 los yog X65 | 0,26e ua | 1.45 e | — | 0.030 Nws | 0.030 Nws | f | f | f |
| L485 los yog X70 | 0,26e ua | 1.65 e | — | 0.030 Nws | 0.030 Nws | f | f | f |
| Cu ≤ 0.50%; Ni ≤ 0.50%; Cr ≤ 0.50% thiab Mo ≤ 0.15%. b Rau txhua qhov kev txo qis ntawm 0.01% qis dua qhov kev qhia siab tshaj plaws rau cov pa roj carbon, qhov nce ntawm 0.05% siab tshaj qhov teev siab tshaj plaws rau Mn yog tso cai, mus txog qhov siab tshaj ntawm 1.65% rau qib ≥ L245 lossis B, tab sis ≤ L360 lossis X52; mus txog qhov siab tshaj plaws ntawm 1.75% rau qib> L360 lossis X52, tab sis <L485 lossis X70; thiab mus txog qhov siab tshaj ntawm 2.00% rau Qib L485 lossis X70. c Tshwj tsis yog tias pom zoo, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Yog tsis pom zoo. f Yog tsis pom zoo, Nb + V + Ti ≤ 0.15 %. g Tsis txhob txhob txwm tshaj tawm B raug tso cai thiab cov seem B ≤ 0.001%. | ||||||||
Mechanical Property
|
Qib Qib | Lub cev ntawm Seamless thiab Welded Yeeb Nkab | Weld Seam of EW, LW, SAW, and COWYeeb | ||
| Yield zoga Rt0,5 ua | Tensile zoga Rm | Elongation(50mm lossis 2 nti)Af | Tensile zogb Rm | |
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 los yog A25 | 175 (25,400) hnub | 310 (45,000) | c | 310 (45,000) |
| L175P los yog A25P | 175 (25,400) hnub | 310 (45,000) | c | 310 (45,000) |
| L210 los yog A | 210 (30,500) | 335 (48,600) hnub | c | 335 (48,600) hnub |
| L245 los yog B | 245 (35,500) | 415 (60,200) hnub | c | 415 (60,200) hnub |
| L290 los yog X42 | 290 (42,100) hnub | 415 (60,200) hnub | c | 415 (60,200) hnub |
| L320 los yog X46 | 320 (46,400) hnub | 435 (63,100) hnub | c | 435 (63,100) hnub |
| L360 los yog X52 | 360 (52,200) | 460 (66,700) teev | c | 460 (66,700) teev |
| L390 los yog X56 | 390 (56,600) teev | 490 (71,100) teev | c | 490 (71,100) teev |
| L415 los yog X60 | 415 (60,200) hnub | 520 (75,400) hli | c | 520 (75,400) hli |
| L450 los yog X65 | 450 (65,300) | 535 (77,600) ntau. | c | 535 (77,600) ntau. |
| L485 los yog X70 | 485 (70,300) hnub | 570 (82,700) | c | 570 (82,700) |
| a Rau cov qib nruab nrab, qhov sib txawv ntawm qhov tsawg kawg nkaus tensile lub zog thiab qhov tsawg kawg nkaus yield zog rau cov yeeb nkab lub cev yuav tsum tau muab raws li nyob rau hauv lub rooj rau qib siab dua tom ntej.b Rau cov qib nruab nrab, qhov tsawg kawg nkaus tensile lub zog rau lub weld seam yuav tsum yog tib tus nqi raws li tau txiav txim siab rau cov yeeb nkab lub cev siv cov lus hauv qab a).c Cov lus qhia tsawg kawg nkaus elongation,Af, qhia nyob rau hauv feem pua thiab sib npaug rau qhov ze tshaj plaws feem pua, yuav tsum tau txiav txim siab siv cov kab zauv hauv qab no:
qhov twg C yog 1940 rau kev suav siv SI units thiab 625,000 rau kev suav nrog USC units; Axc yog qhov siv tau tensile xeem piece cross-sectional cheeb tsam, qhia nyob rau hauv square millimeters (square inches), raws li nram no: 1) rau daim kab ntawv hla hla ntu, 130 mm2 (0.20 in.2) rau 12.7 mm (0.500 in.) thiab 8.9 mm (0.350 in.) txoj kab uas hla kuaj daim; 65 mm2 (0.10 in.2) rau 6.4 mm (0.250 in.) txoj kab uas hla xeem daim; 2) rau tag nrho-section xeem daim, qhov tsawg dua ntawm a) 485 mm2 (0.75 in.2) thiab b) qhov hla ntu ntawm cov khoom xeem, muab tau los ntawm kev siv cov kab lus sab nraud thiab cov phab ntsa tuab ntawm cov yeeb nkab, sib npaug rau qhov ze tshaj 10 mm2 (0.01 in.2); 3) rau daim kab xev xeem, qhov tsawg dua ntawm a) 485 mm2 (0.75 in.2) thiab b) qhov chaw hla ntu ntawm daim ntawv xeem, muab tau los siv qhov dav dav ntawm daim ntawv xeem thiab cov phab ntsa thickness ntawm cov yeeb nkab. , sib npaug rau qhov ze tshaj 10 mm2 (0.01 in.2); U yog qhov tsawg kawg nkaus tensile lub zog, qhia nyob rau hauv megapascals (pounds ib square inch). | ||||
Sab nraud txoj kab uas hla, tawm ntawm roundness thiab phab ntsa thickness
| Specified Sab Nraum D (hauv) | Txoj kab uas hla Tolerance, nti d | Out-of-Roundness Tolerance nyob rau hauv | ||||
| Cov yeeb nkab tsuas yog qhov kawg a | cev a,b,c | Yeeb tsuas yog qhov kawg a | Pipe End a,b,c | |||
| SMLS cev | Welded yeeb nkab | SMLS cev | Welded yeeb nkab | |||
| <2.375 Nws | -0.031 rau + 0.016 | - 0.031 rau + 0.016 | 0.048 ib | 0.036 ib | ||
| ≥2.375 txog 6.625 | 0.020D rau | 0.015D rau | ||||
| +/- 0.0075D | - 0.016 rau + 0.063 | D/t≤75 | D/t≤75 | |||
| Los ntawm kev pom zoo rau | Los ntawm kev pom zoo rau | |||||
| > 6.625 rau 24.000 | +/- 0.0075D | +/- 0.0075D, tab sis max ntawm 0.125 | +/- 0.005D, tab sis max ntawm 0.063 | 0.020d ua | 0.015d ua | |
| > 24 rau 56 | +/- 0.01D | +/- 0.005D tab sis max ntawm 0.160 | +/- 0.079 Nws | +/- 0.063 | 0.015D tab sis max ntawm 0.060 | 0.01D tab sis max ntawm 0.500 |
| Rau | Rau | |||||
| D/t≤75 | D/t≤75 | |||||
| Los ntawm kev pom zoo | Los ntawm kev pom zoo | |||||
| rau | rau | |||||
| D/t≤75 | D/t≤75 | |||||
| > 56 | Raws li pom zoo | |||||
| a. Cov yeeb nkab kawg suav nrog qhov ntev ntawm 4 hauv noj txhua qhov ntawm cov yeeb nkab extremities | ||||||
| b. Rau SMLS yeeb nkab kev kam rau siab thov rau t≤0.984in thiab qhov kam rau ua rau cov yeeb nkab tuab yuav tsum yog raws li kev pom zoo | ||||||
| c. Rau cov yeeb nkab nthuav dav nrog D≥8.625in thiab rau cov yeeb nkab uas tsis txuas ntxiv, txoj kab uas hla ntawm kev kam rau siab thiab qhov tawm ntawm qhov sib npaug tuaj yeem txiav txim siab siv qhov ntsuas hauv txoj kab uas hla lossis ntsuas hauv txoj kab uas hla es tsis yog OD teev. | ||||||
| d. Rau kev txiav txim siab ua raws li txoj kab uas hla txoj kab uas hla, cov yeeb nkab txoj kab uas hla yog txhais raws li lub voj voog ntawm cov yeeb nkab nyob rau hauv ib lub dav hlau circumferential faib los ntawm Pi. | ||||||
| Phab ntsa thickness | Tolerances ib |
| t ntiv | ntiv tes |
| SMLS cev b | |
| ≤ 0.157 | -1.2 |
| > 0.157 rau <0.948 | + 0.150t / - 0.125t |
| ≥ 0.984 | + 0.146 lossis + 0.1t, qhov twg yog qhov ntau dua |
| - 0.120 lossis - 0.1t, qhov twg yog qhov ntau dua | |
| welded cev c,d | |
| ≤ 0.197 | +/- 0.020 Nws |
| > 0.197 rau <0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 Nws |
| a. Yog hais tias qhov kev txiav txim yuav qhia txog qhov kev zam txim rau cov phab ntsa tuab me dua li cov nqi siv tau muab rau hauv cov lus no, qhov ntxiv rau kev kam rau cov phab ntsa tuab yuav tsum tau nce ntxiv los ntawm tus nqi txaus los tswj cov kev kam rau siab. | |
| b. Rau cov yeeb nkab nrog D≥ 14.000 nyob rau hauv thiab t≥0.984in, phab ntsa thickness kam rau ua nyob rau hauv lub zos tej zaum yuav tshaj qhov ntxiv kam rau ua rau phab ntsa thickness los ntawm ib tug ntxiv 0.05t muab hais tias qhov ntxiv kam rau ua rau huab hwm coj tsis tshaj. | |
| c. Qhov ntxiv kam rau ua rau phab ntsa thickens tsis siv rau qhov chaw weld | |
| d. Saib tag nrho API5L spec kom paub meej | |
Ua siab ntev
Kev Xeem Xeem
Hydrostatic xeem
Cov yeeb nkab kom tiv taus qhov kev sim hydrostatic yam tsis muaj qhov xau los ntawm cov hlua khi los yog cov yeeb nkab lub cev. Jointers tsis tas yuav tsum tau kuaj hydrostatic muab cov yeeb nkab seem siv tau zoo kuaj.
Khoov xeem
Tsis muaj kab nrib pleb yuav tsum tshwm sim nyob rau hauv ib feem ntawm daim ntawv xeem thiab tsis muaj qhov qhib qhov vuam yuav tsum tshwm sim.
Kev ntsuam xyuas
Kev lees txais cov qauv rau kev kuaj flattening yuav tsum yog:
- EW cov kav dej D <12.750 hauv:
- X60 T 500 in. Yuav tsum tsis txhob qhib qhov vuam ua ntej qhov kev ncua deb ntawm daim hlau yog tsawg dua 66% ntawm qhov qub sab nraud txoj kab uas hla. Rau txhua qib thiab phab ntsa, 50%.
- Rau cov yeeb nkab nrog D / t> 10, yuav tsum tsis txhob qhib qhov vuam ua ntej qhov kev ncua deb ntawm daim hlau yog tsawg dua 30% ntawm qhov qub sab nraud.
- Rau lwm qhov ntau thiab tsawg xa mus rau tag nrho API 5L specification.
CVN cuam tshuam kuaj rau PSL2
Ntau PSL2 yeeb nkab qhov ntau thiab tsawg yuav tsum tau CVN. Seamless yeeb nkab yuav tsum tau kuaj hauv lub cev. Welded yeeb nkab yog yuav tsum tau kuaj nyob rau hauv lub cev, yeeb nkab weld thiab tshav kub-cuam tshuam cheeb tsam. Xa mus rau tag nrho API 5L specification rau daim ntawv qhia qhov ntau thiab tsawg thiab qib thiab yuav tsum tau absorbed zog qhov tseem ceeb.
