ASTM A 53 e ufiufi le paipa u'amea ma u'amea ma fa'aigoa puipui mafiafia.O le tulaga i luga e masani ona uliuli ma ASTM A53 paipa (lea e taʻua o le ASME SA53 paipa) ua faʻamoemoe mo masini ma faʻaoga faʻamalosi ma e talia foi mo faʻaoga masani i le ausa, vai, kesi ma laina ea.E fetaui lelei mo le ueloina ma mo le faia o gaioiga e aofia ai le viliina, punou, ma le flanging.A53 seamless paipa uʻamea o se mea o le paipa uamea masani Amerika.O le faagasologa o le gaosiga autu o A53 seamless tubes ua vaevaeina i ata malulu ma taʻavale vevela.O le eseesega autu i le va o le lua e faapea o le faagasologa o le gaosiga o paipa uʻamea suʻesuʻe malulu e masani lava e sili atu ona faigata nai lo le vevela vevela, ma o le foliga mai o le faʻafefeteina uamea faʻafefeteina paipa e puupuu atu nai lo le vevela.u'amea solo paipa u'amea, o le mafiafia o puipui o malulu-loloa seamless carbon paipa uamea e masani lava laʻititi nai lo le vevela-taai paipa uʻamea uamea, ae foliga susulu.O le pito i luga ole pa'u u'amea uamea vevela ua ta'avale e fai si talatala.O le faiga autu o le gaosiga o le faagaau lapotopoto avanoa → vevela → tuʻia → tolu-loaiga skew taʻavale, faʻaauau le taʻavale poʻo le extrusion → aveeseina o paipa → sizing (poʻo le faʻaititia o le diameter) → faʻafefe → faʻasaʻo → suʻega vai (poʻo le iloa o mea sese) → faʻailoga → faletusi faʻaofi.
| ASTM A53/ASME SA53 | Ituaiga S | Ituaiga E | Ituaiga F | |||
| (seamless) | (uila fa'a-eletise) | (paipa u'umea) | ||||
| Vasega A | Vasega B | Vasega A | Vasega B | Vasega A | ||
| maualuga kaponi.% | 0.25 | 0.30* | 0.25 | 0.30* | 0.3 | |
| Manganese % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 | |
| Phosphorous, max.% | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | |
| Sulfur, max.% | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | |
| Kopa, maualuga% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Nikeli, maualuga.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Chromium, maualuga.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Molybdenum, maualuga.% | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | |
| Vanadium, maualuga.% | 0.08 | 0.08 | 0.08 | 0.08 | ||
| * Mo fa'aitiitiga ta'itasi i lalo ole 0.01% i lalo ole maualuga ole kaponi, ole fa'asili ole 0.06% manganese ile maualuga ole a fa'atagaina ile maualuga ole 1.65% (e le fa'atatau ile SA53). | ||||||
| Manaoga Tensile | Su'ega ma Eletise-tetee-uelo | Fa'aauau-Uelo | |
| Vasega A | Vasega B | ||
| Malosi Tetele, min., psi | 48,000 | 60,000 | 45,000 |
| Malosi o le fua, min., psi | 30,000 | 35,000 | 25,000 |
1. O le faagasologa o le gaosiga autu o paipa u'amea su'esu'e vevela (fa'agasologa asiasiga autu):
Tupa avanoa avanoa ma asiasiga → faʻavevela faʻalava faʻalava → tui → taʻavale paipa → toe faʻamafanafana uʻamea → faʻamau (faʻaititia) le lautele → vevela △ → faʻamaʻi faʻamaʻa faʻamaʻa → faʻamaeʻaina → asiasiga (e le faʻaleagaina, faaletino ma vailaʻau, asiasiga Taiwan) → fale teu oloa
2. Le faiga autu o le gaosiga o le malulu-taai (toso) paipa uʻamea seamless:
Sauniuniga pili → u'u pickling → ta'avale malulu (tusi) → togafiti vevela → fa'asa'o → fa'amae'a → asiasiga
