ERW paipa tulagae fa'apea:
API 5L, ASTM A53 B, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672

API 5L Standard faʻamoemoe i le kesi ma le vai i totonu o le suauu ma le gaosiga o le kesi mo faʻamatalaga, lea e faʻaaogaina mo paipa uʻamea faʻafefe ma paipa uʻamea uʻamea, e aofia ai le taulaga masani ma le taulaga, o le paipa faʻamau ma le faʻafefe saʻo (TFL) ma le taulaga mo se faʻapitoa. fa'aogaina o paipa feso'ota'iga.

ASTM A53 paipa ua faʻamoemoe mo masini ma faʻaoga faʻamalosi ma e talia foi mo faʻaoga masani ile ausa, vai, kesi ma laina ea.

ASTM A178 faʻataʻitaʻiga mo paipa faʻafefe-eletise faʻatasi ma le laʻititi-puipui-mafiafia e faia i le carbon steel ma carbon-manganese sila e faʻaaogaina i faʻauna faʻapipiʻi, faʻauna afi, faʻavevela vevela, ma pito saogalemu.

ASTM A500 o lo'o fa'apipi'i fa'auluulu ma fa'amole uamea kaponi lapotopoto, sikuea, fa'afa'afa'afa, po'o fa'apitoa foliga fa'apipi'i fa'apipi'i mo le uelo, fa'amau, po'o le fa'amauina o le fausiaina o alalaupapa ma fale, ma mo fa'amoemoega lautele.

ASTM A691 e aofia ai le kaponi ma le paipa uamea, faʻapipiʻi-eletise faʻatasi ma faʻapipiʻi uʻamea faʻapipiʻi, faʻapipiʻiina mai le mamafa-vaʻa-lelei ipu o le tele o suʻesuʻega ma tulaga malosi ma talafeagai mo le maualuga o le auaunaga i le vevela.

ASTM A252 e aofia ai fa'aputu u'amea u'amea puipui fa'aigoa o lo'o galue ai le pa'u u'amea o se sui tumau e amoina uta po'o se atigi e fausia ai fa'aputu sima.

ASTM A672 e ufiufi le paipa u'amea fa'aeletise-fusi-uelo mo le 'au'aunaga maualuga i le vevela.