Paipa u'amea/fa'a'au fa'apa'u/mea fa'aopoopo
01
Fa'aputuga paipa
Fa'atomuaga oloa
Tulaga o meafaitino:
O paipa fa'aputu e masani ona fa'avasegaina e fa'atatau i mea o lo'o faia ai, e mafai ona aofia ai le sila carbon, u'amea uamea, po'o isi mea. O tulaga fa'apitoa o meafaitino o le a fa'alagolago i le fa'atatauga fa'atatau ma le si'osi'omaga e fa'aoga ai le paipa fa'aputu.
Tulaga Fa'atosina:
Ole fa'agasologa ole gaosiga ole fa'aputuga paipa atonu e mana'omia ai le tausisia o tulaga fa'apitoa e fa'amautinoa ai le lelei, fa'amaoni ma le fa'atinoga ole paipa. O nei tulaga e mafai ona atiaʻe e faʻalapotopotoga e pei o le American Society for Testing and Materials (ASTM), le American Petroleum Institute (API), poʻo isi faʻalapotopotoga talafeagai faʻale-malo poʻo faʻavaomalo.
Fuafuaga Tulaga:
E ono mana'omia le fa'aputuina o paipa ina ia fa'amalieina tulaga fa'ata'atia e fa'amautinoa ai lo latou fa'atulagaina lelei ma le gafatia o le amo. O nei tulaga e mafai ona atia'e e fa'ainisinia ma faufale po'o lala sooupu a le malo.
Fa'atonuga o le gaosiga:
O le gaosiga o gaosiga o Submerged-Arc Welded Steel Pipes e mafai ona mulimulitaʻia tulaga faʻapitoa e faʻatulagaina e faʻalapotopotoga e pei o le American Petroleum Institute (API), le American Society for Testing and Materials (ASTM), poʻo isi faʻalapotopotoga faʻavaomalo poʻo faʻava-o-malo e pei ona taua i lalo: API 5L, API 5CT, ASTM 53, EN10217, DIN 2458, IS 3589, GB/T3091, GB/T9711, EN10217, EN10219
Ta'iala mo Talosaga:
O paipa fa'aputu e mafai ona fa'avasegaina e tusa ai ma le fa'aoga fa'atatau, e pei o le fa'aputuga o le gataifale, fa'aputu fa'avae, po'o ituaiga fa'apitoa o le palapala po'o tulaga fa'afanua. E taua le faʻatalanoaina o tulaga faʻapitoa ma faʻavasegaga e fesoʻotaʻi ma le ituaiga paipa faʻapipiʻi e manaʻomia mo se galuega faʻapitoa. Afai e iai sau ta'iala ma'oti po'o fa'avasegaga, fa'amolemole lagona le saoloto e tu'uina mai nisi fa'amatalaga ina ia mafai ai ona ou tu'uina atu fa'amatalaga fa'atatau.
Fa'agasologa:
SSAW - Fa'apipi'i I lalo arc uelo
LSAW – UO(UOE), RB(RBE),JCO(JCOE)
DSAW - Fa'asa'o Fa'alua Fa'asa'o uelo
itu:
I fafo: 355.6mm–1626mm
Mafiafia o le Pa: 8 -50mm
Umi: e oo i le 12m
Vasega uamea:
API 5L: GR B, X42,X46, X56, X60,X65,X70
ASTM A53: GR A, GR B, GR C
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555
Lau'ele'ele: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating e tusa ai ma manaoga o tagata faatau
Suʻega: Suʻesuʻega Faʻainisinia, Mea Faʻainisinia (Malo malosi sili, malosi e maua ai, Elongation), Meatotino Faʻatekinisi (Suʻega Faʻasaʻo, Suʻega Suʻega, Suʻega Suʻega, Suʻega Aʻafiaga), Suʻesuʻega o le Laʻititi, Suʻega Hydrostatic, Suʻega X-ray.
Tusi Faamaonia Su'ega Mill: EN 10204/3.1B
Fa'atonuga o Talosaga: E mafai fo'i ona fa'avasega paipa fa'aumiumi e fa'atatau i lona fa'aogaina, e pei o paipa suau'u ma kesi, fa'aoga fa'atulagaina, po'o le fa'aogaina lautele o fale gaosimea. Ia mautinoa e te vaʻai i tulaga faʻapitoa ma faʻavasegaga e fetaui ma ou manaʻoga faʻapitoa, aua e ono eseese e faʻatatau i alamanuia ma itulagi.
API 5L Laina Paipa
API 5L PSL1/PSL2 GR B , X42, X46, X52, X60, X65, X70
MEA FAI MESINIA MA FA'A'U'UU FA'A'U'U
| FESEGA UAmea | Tuuina atu le malosi, min. psi (MPa) | Malosi tete, min. psi (MPa) | Elongation i le 2 in., min. % |
| GR B | 245 | 415 |  |
| X42 | 290 | 415 | |
| X46 | 320 | 435 | |
| X52 | 360 | 460 | |
| X56 | 390 | 490 | |
| X60 | 415 | 520 | |
| X65 | 450 | 535 | |
| X70 | 485 | 570 |
| FESEGA UAmea | % i le mamafa, maualuga | ||||
| C | Ma | Mn | P | S | |
| GR B | 0.26 | 0.40 | 1.20 | 0.030 | 0.030 |
| X42 | 0.26 | 0.40 | 1.30 | 0.030 | 0.030 |
| X46 | 0.26 | 0.40 | 1.40 | 0.030 | 0.030 |
| X52 | 0.26 | 0.40 | 1.40 | 0.030 | 0.030 |
| X56 | 0.26 | 0.40 | 1.40 | 0.030 | 0.030 |
| X60 | 0.26 | 0.40 | 1.40 | 0.030 | 0.030 |
| X65 | 0.26 | 0.40 | 1.45 | 0.030 | 0.030 |
| X70 | 0.26 | 0.40 | 1.65 | 0.030 | 0.030 |
PIPA u'AE PE ASTM A53 GR. B
MEA FAI MESINIA MA FA'A'U'UU FA'A'U'U
| FESEGA UAmea | Tulaga Max, % | ||||||||
| C | Mn | P | S | Faatasi ai ma | I totonu | Cr | Mo | IN | |
| GR B | 0.30 | 1.20 | 0.05 | 0.05 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
Faleaoga ma Meafaigaluega Gaosiga
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