ERW chitsulo chitoliro amapangidwa ndi otsika pafupipafupi kapena mkulu pafupipafupi kukana "kukana".Iwo ndi machubu ozungulira welded kuchokera mbale zitsulo ndi longitudinal welds.Imagwiritsidwa ntchito kunyamula zinthu nthunzi-zamadzimadzi monga mafuta ndi gasi, ndipo akhoza kukwaniritsa zosiyanasiyana mkulu ndi otsika kukakamiza.
Panthawi yowotcherera chubu ya ERW, kutentha kumapangidwa pamene magetsi akuyenda kudzera m'madera okhudzana ndi malo otsekemera.Amatenthetsa m'mphepete mwazitsulo zonse mpaka pamene m'mphepete mwachitsulo ukhoza kupanga mgwirizano.
Nthawi zambiri chitoliro cha ERW chimakhala ndi OD yopitilira 24" (609mm), pakukula kwake chitolirocho chimapangidwa mu SAW.
Pali mapaipi ambiri omwe angapangidwe ndi ndondomeko ya ERW.Pansipa timalemba mfundo zodziwika kwambiri muzitsulo.
ERW ASTM A53 Giredi A ndi B (ndi Galvanized) Carbon Steel Pipe ASTM A252 Pile Pile ASTM A500 Structural Pipe ASTM A134 ndi ASTM A135 Pipe EN 10219 S275, S355 Pipe
Chitoliro Chosapanga dzimbiri cha ERW Chitoliro/Miyezo ya Chitsulo ndi KufotokozeraASTM A269 Chitoliro Chosapanga dzimbiri ASTM A270 Chitoliro Chosapanga dzimbiri ASTM A312 Chitoliro Chopanda chitsulo chosapanga dzimbiri ASTM A790 Ferritic/Austenitic/Duplex Chitoliro Chopanda chitsulo
API ERW Line chitoliro API 5L B mpaka X70 PSL1 (PSL2 iyenera kukhala mu ndondomeko ya HFW) API 5CT J55/K55, N80 casing ndi chubu
Kugwiritsa ntchito ndi kugwiritsa ntchito chitoliro chachitsulo cha ERW: Chitoliro chachitsulo cha ERW chimagwiritsidwa ntchito kunyamula gasi ndi zinthu zamadzimadzi monga mafuta ndi gasi, ndipo zimatha kukwaniritsa zofunikira za kupanikizika kochepa komanso kuthamanga kwakukulu.