| Standard | Akunja awiri khoma makulidwe kupatuka | |||
| tanthauzo | Kunja m'mimba mwake kulolerana | Khoma makulidwe kulolerana | Kupatuka kwa kulemera | |
| Chithunzi cha ASTM A53 | Osakutidwa ndi otentha-kuviika kanasonkhezereka welded ndi opanda msoko mwadzina chitsulo chitoliro | Kwa machubu mwadzina ochepera kapena ofanana ndi NPS 1 1/2(DN40), m'mimba mwake wa malo aliwonse sadzakhala wamkulu kuposa mtengo wamba wa 1/64 mu(0.4mm), pamachubu odziŵika kwambiri kuposa kapena ofanana ndi NPS2(DN50), m'mimba mwake sangapitirire mtengo wokhazikika wa ± 1% | Kuchuluka kwa khoma pamalo aliwonse sikuyenera kupitirira 12.5% kuposa makulidwe omwe atchulidwa mwadzina. Makulidwe ochepera a khoma omwe amapendedwa akwaniritse zofunikira mu Table X2.4 | Kulemera kwa chitoliro chadzina chotchulidwa mu Matebulo X2.2 ndi X2.3, kapena kulemera kwake kowerengedwa molingana ndi ndondomeko yoyenera mu ASME B36.10M, sikuyenera kupatutsidwa ndi kupitirira ± 10% |
| Chithunzi cha ASTM A106 | Kutentha kwambiri kwa mpweya wopanda mpweya chitsulo mwadzina chitoliro | 1/8-1 1/2 ±0.4mm, ＞1 1/2-4 ±0.79mm ＞4-8 ﹢1.59mm -0.79mm ＞8-18 ﹢2.38mm -0.79mm ＞18-26 ﹢3.26 ﹢3.18mm﹢3. ﹢3.79mm ﹣0.79mm ~34-48 +4.76mm -0.79mm | Makulidwe ochepera a khoma pamalo aliwonse sayenera kupitilira 12.5% ya makulidwe a khoma laukadaulo | Kulemera kwa chitoliro chilichonse chachitsulo sichidzapitirira 10% kapena kuposa kulemera kwake, komanso sikudzakhala pansi pa 3.5% kapena kuposa. Pokhapokha ngati atagwirizana ndi wogulitsa ndi Xu Fang, mapaipi achitsulo okhala ndi NPS 4 ndi ang'onoang'ono amatha kuyezedwa bwino m'magulu. |
| API 5L | Chitoliro cha payipi (makampani amafuta ndi gasi - chitoliro chachitsulo chamayendedwe amapaipi |  | ||
Nthawi yotumiza: Feb-13-2025
