Ipayipi le-API 5L X70 liwumsebenzi wamapayipi webanga le-premium ekucacisweni okujwayelekile kwe-API 5L. Ibizwa nangokuthi ipayipi L485, njengoba ingamandla okukhiqiza
ubuncane ku-485 Mpa (70,300 psi). I-API 5L X70 ihlanganisa izinhlobo zokukhiqiza ngezinhlobo ezingenamthungo nezishiselwe (ERW, SAW), zombili ezisetshenzisiwe
zokuthutha uwoyela negesi.
I-API X70 carbon steel line pipe ingachazwa njengepayipi lensimbi elinokuqukethwe okuphezulu kwekhabhoni kanye nenhlanganisela ye-alloying. I-API 5L X 70 carbon steel pipe engenamthungo Ngaphezu kokulandelela amanani ezinye izakhi ezifana nesibabule, i-phosphorus, njll., ingxubevange yayo inokuqukethwe okuphezulu kwe-manganese ne-silicon. Ukwengezwa kwazo zonke lezi zakhi kusiza ukuthuthukisa izakhiwo zemishini ye-X70 carbon steel pipe.
Lokhu kungabonwa kusukela kumandla esivuno esiphansi (485 MPa) weshubhu ye-API 5L X70 Class B LSAW. Iphinde ibe namandla amancane okudonsa angama-635 MPa. Ingaphezulu lamashubhu e-API 5L X70 SCH 40 DSAW iphathwa ngezinhlobo ezahlukene, njengamafutha amnyama, avimbela ukubola, ama-hot-dip galvanized noma amakhaza. Ngokuya ngokusetshenziswa okuqondile kwe-X70 PSL2 spiral tube, singancoma ukwelashwa okungcono kakhulu kwangaphandle kumakhasimende ethu ahlonishwayo. Isibonelo, uthayela onamapayipi ebanga le-X70 PSL1 ukhombisa ukumelana nokugqwala okuhle kakhulu.
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Uhlobo |
Ipayipi yensimbi ye-API |
|
Usayizi wepayipi |
30 - 426 mm |
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Ukujiya kodonga |
3-80mm |
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Ubude |
5-12m |
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Okubalulekile |
I-API 5L X 52 X70 X65 X56, |
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Okujwayelekile |
I-GB, DIN, ASTM, API (GB/T8162, GB/T8163, GB/T 3087, GB 5130, DIN 1626, DIN 1629/3, DIN 2391, DIN 17175, DIN 2448, |
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Isicelo |
uphethiloli, ukwakhiwa, ukwakha umkhumbi, ukuncibilikisa, ukuhamba kwezindiza, amandla, ukudla, ukwenza iphepha, amakhemikhali, imishini yezokwelapha, |
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Iphakheji |
Imichilo yensimbi igoqiwe, isikhwama esilukiweyo sipakishwe, amakepisi ePlastiki emikhawulweni yomibili, noma ngokwezidingo zamakhasimende. |
Ukwakheka Kwamakhemikhali
| Ibanga | Ukwakheka Kwamakhemikhali | |||||||
| C | Si | UMn | P | S | V | Nb | Thi | |
| I-API 5L X70 | 0.17 | 0.45 | 1.75 | 0.020 | 0.010 | 0.10 | 0.05 | 0.06 |
| I-API 5L X70 PSL 1 Izidingo Zekhemikhali | ||||||||
| Ibanga | Ukwakhiwa, % | |||||||
| C max | Mn max | P | S max | Ubuningi be-V | Nb ubuningi | Ithi max | ||
| imiz | ubuningi | |||||||
| B | 0.28 | 1.2 | - | 0.03 | 0.03 | c.d | c,d | d |
| X70 | 0.28 | 1.4 | - | 0.03 | 0.03 | f | f | f |
| I-API 5L X70Q PSL 2 Izidingo Zekhemikhali | |||||||||
| Ibanga | Ukwakhiwa, % | ||||||||
| C | Si | UMn | P | S | V | Nb | Thi | Okunye | |
| I-X70Q | 0.18 | 0.45 | 1.8 | 0.025 | 0.015 | g | g | g | h,l |
I-API 5L GrB X70 PSL 1/2 Mechanical Properties
| Ibanga | Yield Strength Mpa | I-Tensile Strength Mpa | URaito | Ukwelula | ||
| imiz | ubuningi | imiz | ubuningi | ubuningi | imiz | |
| BN | 245 | 450 | 415 | 655 | 0.93 | f |
| I-BQ | ||||||
| I-X70Q | 485 | 635 | 570 | 760 | 0.93 | f |