Factory Supply Tuam Tshoj Ms Round Tsawg Carbon Seamless Steel Yeeb Nkab Dub Hlau Seamless Steel Yeeb Nkab Siv rau Petroleum Pipeline
Txheej txheem cej luam
Peb lub hom phiaj los nrhiav kom paub qhov tsis zoo ntawm kev tsim khoom thiab muab cov kev pabcuam zoo tshaj plaws rau cov neeg siv khoom hauv tsev thiab txawv teb chaws tag nrho lub siab dawb paug rau Seamless Steel Yeeb Nkab Siv rau Petroleum Pipeline, Yog tias koj txaus siab rau yuav luag txhua yam ntawm peb cov kev daws teeb meem lossis xav tham txog kev txiav txim tsim. , nco ntsoov tiag tiag xav tias dawb hu rau peb. Peb nthuav tawm ntau yam khoom lag luam thiab kev daws teeb meem hauv cheeb tsam no. Dhau li ntawd, kev txiav txim customized kuj muaj. Dab tsi ntxiv, koj yuav txaus siab rau peb cov kev pabcuam zoo. Nyob rau hauv ib lo lus, koj txaus siab yog guaranteed. Txais tos tuaj xyuas peb lub tuam txhab! Yog xav paub ntxiv, nco ntsoov tuaj rau peb lub vev xaib.Yog tias muaj lus nug ntxiv, thov koj xav tiv tauj peb.
Taw qhia rau API 5L pipeline steel yeeb nkab / Qhov sib txawv ntawm API 5L PSL1 thiab PSL2 cov qauv
API 5L feem ntau yog hais txog kev siv cov txheej txheem ntawm cov kav hlau, uas yog siv los thauj cov roj, chav dej, dej, thiab lwm yam uas tau muab rho tawm hauv av mus rau cov chaw lag luam roj av thiab roj av. Cov kav dej muaj xws li seamless steel kav thiab welded steel kav. Tam sim no, feem ntau siv welded steel yeeb nkab hom nyob rau hauv cov roj pipelines nyob rau hauv Tuam Tshoj muaj xws li muab kauv submerged arc welded yeeb nkab (SSAW), longitudinal submerged arc welded yeeb nkab (LSAW), thiab hluav taws xob kuj welded yeeb nkab (ERW). Seam steel kav feem ntau xaiv thaum cov yeeb nkab txoj kab uas hla tsawg dua 152mm.
Muaj ntau qib ntawm raw khoom rau API 5L steel kav: GR.B, X42, X46, X52, X56, X60, X70, X80, thiab lwm yam. Tam sim no loj steel mills xws li Baosteel tau tsim qib steel rau X100, X120 pipeline steel. Cov qib steel sib txawv ntawm cov yeeb nkab steel muaj cov kev xav tau siab dua rau cov khoom siv raw thiab kev tsim khoom, thiab cov pa roj carbon sib npaug ntawm cov qib steel sib txawv yog tswj nruj heev.
Thaum nws los txog rau API 5L, txhua tus paub tias muaj ob tus qauv, PSL1 thiab PSL2. Txawm hais tias tsuas muaj ib lo lus sib txawv, cov ntsiab lus ntawm ob tus qauv no txawv heev. Qhov no zoo ib yam li GB / T9711.1.2.3 tus qauv. Lawv txhua tus tham txog tib yam, tab sis cov kev xav tau sib txawv heev. Tam sim no kuv yuav tham txog qhov sib txawv ntawm PSL1 thiab PSL2 kom meej:
1. PSL yog cov ntawv luv rau cov khoom specification. Cov khoom tshwj xeeb theem ntawm kab yeeb nkab tau muab faib ua PSL1 thiab PSL2, nws kuj tuaj yeem hais tias qib zoo tau muab faib ua PSL1 thiab PSL2. PSL2 siab dua PSL1. Ob qhov kev qhia tshwj xeeb no tsis tsuas yog sib txawv hauv kev tshuaj ntsuam xyuas, tab sis kuj tseem muaj cov tshuaj lom neeg thiab cov khoom siv kho tshuab. Yog li ntawd, thaum txiav txim raws li API 5L, cov ntsiab lus hauv daim ntawv cog lus yuav tsum tsis yog tsuas yog qhia cov cim ib txwm muaj xws li cov lus qhia tshwj xeeb thiab qib steel. , Yuav tsum tau qhia cov khoom specification, uas yog, PSL1 los yog PSL2. PSL2 yog nruj dua PSL1 hauv cov ntsuas xws li tshuaj lom neeg muaj pes tsawg leeg, tensile zog, cuam tshuam lub zog, thiab kev sim tsis muaj kev puas tsuaj.
2. PSL1 tsis tas yuav cuam tshuam kev ua haujlwm. Rau txhua qib steel ntawm PSL2 tshwj tsis yog x80, qhov nruab nrab tus nqi ntawm Akv ntawm tag nrho cov nplai ntawm 0 ° C: longitudinal ≥ 41J, transverse ≥ 27J. X80 steel qib, tag nrho-scale 0 ℃ Akv nruab nrab tus nqi: longitudinal ≥ 101J, transverse ≥ 68J.
3. Cov kav dej kav dej yuav tsum tau kuaj hydrostatically ib qho los ntawm ib qho, thiab tus qauv tsis muab kev hloov pauv tsis zoo ntawm cov dej siab. Qhov no kuj yog qhov sib txawv loj ntawm API tus qauv thiab tus qauv Suav. PSL1 tsis tas yuav muaj kev tshuaj xyuas tsis muaj kev puas tsuaj, PSL2 yuav tsum yog kev tshuaj xyuas tsis muaj kev puas tsuaj ib los ntawm ib qho.
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.
