Paipa u'amea/fa'a'au fa'apa'u/mea fa'aopoopo
01
Paipa uelo faaumiumi
Fa'atomuaga oloa
O paipa u'amea fa'aumiumi e masani ona fa'avasegaina e fa'atatau i mea o lo'o gaosia mai ai, o lo'o fa'amoemoe e fa'aoga, ma tulaga latou te usita'ia. E masani lava, o le longitudinal uelo uamea paipa lea e faasino i tulaga masani ma faavasegaina mo Submerged-Arc Welded Steel Pipes.
Tulaga o meafaitino:
E mafai ona faʻavasegaina paipa uʻamea faʻaumiumi e faʻavae i luga o mea e fai ai, e pei o le carbon steel, stainless steel, alloy steel, ma isi ituaiga mea taʻitasi ma lona lava seti o tulaga ma faʻamatalaga.
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
Fa'agasologa:
LSAW – UO(UOE), RB(RBE),JCO(JCOE)
DSAW - Fa'alua Fa'a'ele'ele arc uelo
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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