API 5L X46 yog carbon steel kab yeeb nkab qib siv hauv kev thauj mus los ntawm cov roj, roj, thiab lwm yam kua hauv kev lag luam pipeline. API 5L kev xaiv los ntawm American Petroleum Institute specification, thiab X46 qhia qhov tsawg kawg nkaus yield zog ntawm 46,000 psi, los yog kwv yees li 317 MPa. Tib qib raug xaiv L360 raws li ISO 3183, qhov twg tus lej qhia txog qhov tsawg kawg nkaus tawm lub zog hauv megapascals. X46 raug xaiv rau kev pabcuam qhov twg lub zog ntawm X42 yog marginal thiab tus nqi siab dua ntawm X52 lossis X60 tsis raug cai.
Qib Qib thiab Lub Zog
Tus lej X hauv qib API 5L hais txog qhov tsawg kawg nkaus tawm lub zog hauv ntau txhiab phaus ib square inch. X46 yog li yuav tsum muaj qhov tsawg kawg nkaus lub zog ntawm 46 ksi, 317 MPa, thiab lub zog tensile yam tsawg kawg nkaus ntawm 60 ksi, 414 MPa. Cov nqi no zoo ib yam rau PSL 1 thiab PSL 2; ob yam khoom specifications txawv nyob rau hauv chemistry, toughness, thiab xeem yuav tsum tau es tsis nyob rau hauv lub hauv paus zog.
PSL 1 vs PSL 2
PSL 1 yog tus qauv zoo nrog cov tshuaj chemistry, cov qauv kev ntsuas kev ntsuas nrog rau tensile, hardness, thiab flattening tests, thiab tsis tas yuav tsum tau kuaj Charpy. Nws yog qhov tsim nyog rau cov kev pabcuam dav dav dav dav uas qhov siab toughness tsis tseem ceeb. PSL 2 siv cov tshuaj txwv nruj dua, qhov siab tshaj qhov sib npaug ntawm cov pa roj carbon monoxide los lav qhov weldability, yuav tsum tau Charpy V- ntsuas qhov cuam tshuam nrog qhov tsawg kawg nkaus absorbed zog qhov tseem ceeb, thiab ntxiv tsis yog - kev kuaj xyuas ntawm cov seam. PSL 2 tau teev tseg rau sab ntug dej hiav txwv, arctic, siab -siab, thiab qaub kev pabcuam kab.
Tshuaj muaj pes tsawg leeg
X46 yog ib qho qis -carbon manganese steel. PSL 1 qhov siab tshaj plaws yog carbon 0.26 feem pua, manganese 1.30 feem pua, sulfur 0.030 feem pua, thiab phosphorus 0.030 feem pua. PSL 2 nruj cov no mus txog 0.24 feem pua carbon, 1.20 feem pua manganese, 0.025 feem pua phosphorus, thiab 0.015 feem pua sulfur, nrog carbon sib npaug txwv xws li CE IIW ntawm 0.43 siab tshaj plaws los yog CE Pcm ntawm 0.25 siab tshaj nyob ntawm thickness. Cov tshuaj chemistry tswj tau ua rau thaj chaw vuam ncaj nraim thiab txo qhov kev pheej hmoo ntawm cov cheeb tsam nyuaj.
| Element, max % | PSL 1 | PSL 2 |
|---|---|---|
| Cov pa roj carbon | 0.26 | 0.24 |
| Manganese | 1.30 | 1.20 |
| Phosphorus | 0.030 | 0.025 |
| Sulfur | 0.030 | 0.015 |
| Carbon sib npaug | Tsis tau teev tseg | CE IIW 0.43 max |
Mechanical Properties
| Khoom | PSL 1 | PSL 2 |
|---|---|---|
| Yam tsawg kawg nkaus yield zog | 46 ksi (317 MPa) | 46 ksi (317 MPa) |
| Tsawg kawg tensile zog | 60 ksi (414 MPa) | 60 ksi (414 MPa) |
| Elongation | Raws li tus qauv qauv | Raws li tus qauv qauv |
| Charpy V-qhov cuam tshuam | Tsis yuam | Yuav tsum tau |
| Kev kuaj Hardness | Tsis yuam | Yuav tsum tau kev pab qaub |
Qhov ntau thiab tsawg thiab kev tsim khoom
X46 yeeb nkab yog tsim nyob rau hauv ntau qhov loj, los ntawm cov kab me me xws li 2.375 ntiv tes mus rau cov kab uas loj tshaj 42 ntiv tes. Phab ntsa thickness yog txiav txim los ntawm lub sij hawm, xws li SCH 40 los yog SCH 80, los yog los ntawm ib tug teev decimal thickness. Ntev yog muab los ua ib zaug, ob npaug, lossis triple random, lossis txiav kom ntev. Cov kev tsim khoom muaj xws li seamless yeeb nkab rau qhov me me, ERW hluav taws xob tsis kam welded yeeb nkab rau nruab nrab diameters, thiab LSAW lossis SSAW submerged arc welded yeeb nkab rau cov kab loj loj thiab cov phab ntsa tuab. Txhua txoj kev yuav tsum ua kom tau raws li qib tib yam thiab PSL cov cai.
Cov ntawv thov siv
X46 yog siv rau hauv kev sib sau cov kab uas txav cov roj av lossis roj av los ntawm lub taub dej mus rau cov chaw ua haujlwm, cov kav dej xa mus rau ntev - kev thauj mus los, kev faib cov network uas xa cov roj rau cov neeg siv khoom lag luam thiab cov neeg nyob hauv tsev, cov chaw tsim khoom thiab cov txheej txheem petrochemical cov kav dej, thiab cov kav dej los yog tsim tawm - cov kav dej. Nws yog qee zaus siv rau cov kab ke thiab kev sib txuas hauv marine ib puag ncig, txawm hais tias cov qauv tubing qauv yog qhov kev xaiv tseem ceeb rau lub luag haujlwm.
Qhov zoo thiab qhov txwv
Qhov txiaj ntsig tseem ceeb ntawm X46 yog lub zog nce siab tshaj X42 yam tsis muaj tus nqi dhia loj, muaj dav dav, thiab zoo weldability thaum chemistry tswj, tshwj xeeb tshaj yog nyob rau hauv PSL 2. Qhov kev txwv yog tias piv nrog X65, X70, lossis X80, X46 tsis haum rau kev kub siab heev lossis sib sib zog nqus - dej kev pab cuam qhov twg phab ntsa thickness thiab qhov hnyav ua qhov tseem ceeb. Zoo li txhua cov pa roj carbon steel, nws yuav tsum tau txheej txheej sab nraud, xws li fusion bonded epoxy lossis peb - txheej polyethylene, thiab cathodic tiv thaiv thaum faus lossis submerged.
Yuav Order X46 Pipe li cas
Qhia tus qauv thiab qib, piv txwv li API 5L X46 lossis ISO 3183 L360; qib khoom specification; kev tsim khoom; sab nraud txoj kab uas hla, phab ntsa thickness, thiab ntev; yeeb nkab kawg npaj; thiab lwm yam kev xav tau ntxiv xws li kev ntsuas qhov kub thiab txias, tswj kev pabcuam qaub, lossis thib peb- tshuaj xyuas tog. Kev lees paub PSL ntawm theem nug yog qhov tseem ceeb vim tias nws hloov pauv chemistry, kuaj, thiab tus nqi.
FAQ
Lub zog tawm ntawm API 5L X46 yog dab tsi?
X46 muaj qhov tsawg kawg nkaus lub zog ntawm 46,000 psi, lossis 317 MPa, thiab lub zog tensile yam tsawg kawg nkaus ntawm 60,000 psi, lossis 414 MPa.
Puas yog X46 tib yam li L360?
Yog lawm. ISO 3183 siv L tus qauv nrog lub zog hauv MPa, yog li X46 yog L360 hauv ISO 3183 cov ntsiab lus.
Qhov txawv ntawm X46 thiab X42 yog dab tsi?
X46 muaj 317 MPa yam tsawg kawg nkaus tawm los piv rau 290 MPa rau X42, muab kwv yees li 9 feem pua lub zog ntau dua nrog tus nqi qis dua. Chemistry thiab vuam cwj pwm zoo ib yam.
Thaum twg yuav tsum X46 raug txiav txim raws li PSL 2?
PSL 2 yog yuav tsum tau rau sab ntug dej hiav txwv, arctic, siab - siab, thiab qaub qhov kev pab cuam, qhov twg yuav tsum tau Charpy toughness, carbon sib npaug tswj, thiab ntxiv tsis yog - kev kuaj puas tsuaj yog xav tau.
X46 yeeb nkab puas siv tau rau cov kav dej?
Yog lawm. X46 feem ntau yog siv rau cov dej thiab tsim tawm - cov kab xa dej uas nws lub zog tso cai rau phab ntsa nyias dua li Qib B rau tib lub zog ua haujlwm.
