Paipa u'amea uliuli, e ta'ua fo'i opaipa u'amea kaponi, paipa u'amea vaivai, o se ituaiga paipa e faia mai le uʻamea maualalo le kaponi. O lona foliga pogisa tulaga ese e sau mai se una uliuli o le oxide e fausia i luga o lona fogaeleele i le taimi o le gaosiga.
E masani lava, o paipa u'amea uliuli o paipa lapotopoto e le'i fa'agasoloina, e masani ona togafitia mo le fa'auma o le laualuga. Ona o le leai o se ufiufi puipuia, e faigofie ona 'ele, ma talafeagai ai mo le fa'aaogaina i siosiomaga mago pe mafai ona valiina pe puipuia. Ua lauiloa i lo latou malosi ma le tumau, o paipa u'amea uliuli o se filifiliga lauiloa mo fale ma fale gaosi oloa. E sau i le tele o lapopo'a ma mafiafia, e maua ai le fetuutuunai mo mana'oga eseese o le fausiaina ma le fa'apipi'iina.
1. Fa'atomuaga Pupuu i Paipa U'amea Uliuli
| Oloa | Paipa U'amea Uliuli |
| Meafaitino | Uamea Kaponi Maualalo |
| Vasega | Q195 = S195 / A53 Vasega A Q235 = S235 / A53 Vasega B / A500 Vasega A Q355 = S355JR / A500 Vasega B Vasega C |
| Tulaga Masani | GB/T3091, GB/T13793API 5L/ASTM A53, A500, A36, ASTM A795 |
| Fa'amatalaga auiliili | ASTM A53 A500 sch10 – sch80 |
| Luga | Valiina i le Uliuli po'o le Uliuli Faanatura |
| Fa'ai'uga | Pito masani |
| Pito fa'alava | |
| Pito ua fa'a'a'a |
| ASTM A53 Ituaiga E | Fa'atulagaga Fa'akemikolo | Meatotino Fa'amekanika | |||||
| Vasega u'amea | C (maualuga)% | Mn (maualuga)% | P (maualuga)% | S (maualuga)% | Malosiaga o le fua MPa maualalo | Malosiaga o le tensile MPa maualalo | |
| Vasega A | 0.25 | 0.95 | 0.05 | 0.045 | 205 | 330 | |
| Vasega B | 0.3 | 1.2 | 0.05 | 0.045 | 240 | 415 | |
| Fa'asologa fa'akemikolo | Meatotino fa'amekanika, WT≤16mm | ||||||||
| Tulaga Masani | Vasega u'amea | C (maualuga)% | Si (maualuga)% | Mn (maualuga)% | P (maualuga)% | S (maualuga)% | Maua maualalo malosi MPa | Malosiaga o le tensile MPa | Fa'aumiumi maualalo % |
| GB/T 700-2006 | Q235A | 0.22 | 0.35 | 1.4 | 0.045 | 0.05 | 235 | 370-500 | 26 |
| GB/T 700-2006 | Q235B | 0.2 | 0.35 | 1.4 | 0.045 | 0.045 | 235 | 370-500 | 26 |
| DN | OD | ASTM A53 GRA / B | ASTM A795 GRA / B | |||
| SCH10S | STD SCH40 | SCH10 | SCH30 SCH40 | |||
| MM | INISI | MM | (mm) | (mm) | (mm) | (mm) |
| 15 | 1/2” | 21.3 | 2.11 | 2.77 | - | 2.77 |
| 20 | 3/4” | 26.7 | 2.11 | 2.87 | 2.11 | 2.87 |
| 25 | 1” | 33.4 | 2.77 | 3.38 | 2.77 | 3.38 |
| 32 | 1-1/4” | 42.2 | 2.77 | 3.56 | 2.77 | 3.56 |
| 40 | 1-1/2” | 48.3 | 2.77 | 3.68 | 2.77 | 3.68 |
| 50 | 2” | 60.3 | 2.77 | 3.91 | 2.77 | 3.91 |
| 65 | 2-1/2” | 73 | 3.05 | 5.16 | 3.05 | 5.16 |
| 80 | 3” | 88.9 | 3.05 | 5.49 | 3.05 | 5.49 |
| 90 | 3-1/2" | 101.6 | 3.05 | 5.74 | 3.05 | 5.74 |
| 100 | 4” | 114.3 | 3.05 | 6.02 | 3.05 | 6.02 |
| 125 | 5” | 141.3 | 3.4 | 6.55 | 3.4 | 6.55 |
| 150 | 6” | 168.3 | 3.4 | 7.11 | 3.4 | 7.11 |
| 200 | 8” | 219.1 | 3.76 | 8.18 | 4.78 | 7.04 |
| 250 | 10” | 273.1 | 4.19 | 9.27 | 4.78 | 7.8 |
2. Eseese ituaiga o paipa u'amea uliuli
E tusa ai ma faiga eseese o gaosiga, e tele lava ina vaevaeina paipa uʻamea uliuli i paipa uʻamea ua ueloina ma paipa uʻamea e leai ni soʻoga.
Paipa U'amea Fa'apipi'i:O paipa u'amea ua fa'apipi'iina e faia e ala i le fa'apipi'iina o u'amea po'o ni fasi u'amea ua milo i totonu o se paipa. E ta'ua fo'i o le paipa ERW (Electric Resistance Welded). O lenei ituaiga paipa e masani ona malosi ma ma'a'a. O le faiga o le gaosiga o paipa u'amea ua fa'apipi'iina e fai si faigofie, ma e mafai ona gaosia ni vaega paipa uumi i se tau maualalo.
Paipa U'amea e leai se Su'isu'i:O paipa u'amea e leai ni so'oga e gaosia e ala i le fa'agasologa vevela po'o le fa'a'a'a'a malulu e aunoa ma ni so'oga fa'apipi'i. O lenei ituaiga paipa e sili atu lona malosi ma le saogalemu i lalo o le mamafa maualuga ma tulaga ogaoga ona e leai ni ona vaivaiga (e pei o fa'apipi'i).
3. O le ā le aogā o le paipa u'amea uliuli?
E lautele le fa'aaogaina o paipa uliuli i le tele o galuega, e aofia ai paipa, tufatufaga o le kesi, ma le lagolago i fausaga.
Paipa u'amea e leai se so'ogae gaosia e aunoa ma ni so'oga po'o ni uelo, lea e fa'aleleia atili ai lona malosi ma avea ai ma filifiliga saogalemu mo le felauaiga o kasa ma vai i lalo o le mamafa maualuga. O lenei ituaiga paipa e taua tele i galuega e taua tele ai le tulaga lelei o le fausaga, e pei o paipa suau'u ma kesi.
Ae o lesi foi itu,paipa u'amea uliuli ua fa'apipi'iinae masani ona faʻaaogaina i le tele o faʻaoga, e aofia ai paipa vai, faʻasalalauga kesi ma faiga faʻasūsū afi. O ona uiga e teteʻe atu i le afi e talafeagai ai mo ia faiga, lea e sili ona taua ai le faʻatuatuaina ma le saogalemu.



4. Puleaina ma le Tu'uina Atu o Paipa Uliuli
1) I le taimi ma le maeʻa ai o le gaosiga, o le aufaigaluega a le QC e silia ma le 5 tausaga o latou poto masani e siaki faʻafuaseʻi oloa.
2) Fale su'esu'e fa'amaonia fa'ale-atunu'u ma tusi fa'amaonia CNAS
3) Siakiina taliaina mai le isi vaega ua tofia/totogiina e le tagata faʻatau, e pei o le SGS, BV.
4) Ua fa'amaonia e Malasia, Initonesia, Sigapoa, Filipaina, Ausetalia, Peru ma Peretania. E umia e i matou tusi fa'amaonia UL /FM, ISO9001/18001, FPC.
Totogi:
Auala e Totogi ai: Muamua TT, T/T, L/C, OA.
Tuutuuga Tau Fefaatauaiga: FOB, CIF, CFR, FCA
Tulaga Autū o le Tauvaga:
- Poloaiga Laiti e Taliaina Vaega Igoa Fa'ailoga Atunuu na Afua Mai ai
- Ua Fa'atulaga e le Aufaigaluega Poto Masani se Fa'amaoniga/Fa'amaoniga
- Afifiina o Fa'amaoniga Fa'avaomalo
- Tau o le Falegaosimea Fa'amatalaga o le Oloa Fa'atinoga o le Oloa
- Fa'amaoniga o le Tu'uina Atu Vave, Tulaga Lelei, Igoa Lelei
- Fa'ata'ita'iga o Auaunaga e Maua
Maketi Autū mo Fa'atau Atu i Fafo
- Asia i Sautesasae
- Ausetalia
- Sasaʻe Tutotonu
- Aferika
- Asia i Matu
- Amerika Tutotonu/Amerika i Saute












