Helical-seam carbon steel lipeipi ASTM A139 Grade A, B, C
Thepa ea Mechini
| Kereiti A | Sehlopha sa B | Mophato C | Sehlopha sa D | Mophato E | |
| Yield strength, min, Mpa(KSI) | 330(48) | 415(60) | 415(60) | 415(60) | 445(66) |
| Matla a tsitsitseng, min, Mpa(KSI) | 205(30) | 240(35) | 290(42) | 315(46) | 360(52) |
Sebopeho sa Lik'hemik'hale
| Element | Moetso, Max, % | ||||
| Kereiti A | Sehlopha sa B | Mophato C | Sehlopha sa D | Mophato E | |
| Khabone | 0.25 | 0.26 | 0.28 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Phosphorus | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sebabole | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
Teko ea Hydrostatic
Bolelele bo bong le bo bong ba phala bo tla lekoa ke moetsi ho khatello ea hydrostatic e tla hlahisa ka har'a lebota la liphaephe khatello ea maikutlo e seng ka tlase ho 60% ea matla a tlase a chai a boletsoeng mocheso oa kamore.Khatello e tla khethoa ke equation e latelang:
P=2St/D
Liphapang Tse Dumelloang Ka Boima le Botekanyo
Bolelele bo bong le bo bong ba phala bo tla lekanngoa ka thoko 'me boima ba eona bo ke ke ba fapana ho feta 10% ho feta kapa 5.5% tlas'a boima ba eona ba theory, e baloang ho sebelisoa bolelele ba eona le boima ba eona ka bolelele ba yuniti.
Bophara ba ka ntle bo ke ke ba fapana ho feta ± 1% ho tloha bophara bo boletsoeng bo ka ntle bo boletsoeng.
Botenya ba marako sebakeng leha e le sefe ha boa lokela ho feta 12.5% tlas'a botenya ba lebota bo boletsoeng.
Bolelele
Bolelele bo le bong: 16 ho isa ho 25ft(4.88 ho isa ho 7.62m)
Bolelele bo sa reroang habeli: ho feta 25ft ho isa ho 35ft(7.62 ho isa ho 10.67m)
Bolelele bo tšoanang: phapano e lumelletsoeng ±1in
E qetella
Lithako tsa liphaephe li tla lokisoa ka lipheletso tse hlakileng, 'me lithupa li tla tlosoa lipheletsong.
Ha pheletso ea phala e boletsoeng e le bevel e fela, angle e tla ba 30 ho isa ho 35 degrees
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