| Daidaitacce | Bambancin kauri na bango na waje | |||
| ma'anar | Juriyar diamita ta waje | Juriyar kauri bango | Karkatar da Nauyi | |
| ASTM A53 | Bututun ƙarfe mara rufi da aka welded da kuma bututun ƙarfe mara sumul | Ga bututun da ba su da yawa waɗanda ba su kai NPS 1 1/2 (DN40) ba, diamita na kowane wuri bai kamata ya fi ƙimar da aka saba da ita ba ta 1/64 in (0.4mm), ga bututun da ba su da yawa waɗanda suka fi NPS2 (DN50) ko kuma suka yi daidai da ita, diamita na waje ba zai wuce ƙimar da aka saba da ita ba ta ±1%. | Mafi ƙarancin kauri na bango a kowane wuri bai kamata ya wuce kashi 12.5% na kauri fiye da ƙayyadadden kauri na bango ba. Mafi ƙarancin kauri na bango da aka duba zai cika buƙatun da ke cikin Tebur X2.4 | Ba za a karkatar da nauyin bututun da aka ƙayyade a cikin Teburin X2.2 da X2.3 ba, ko nauyin da aka ƙididdige bisa ga dabarar da ta dace a cikin ASME B36.10M, da fiye da ±10% |
| ASTM A106 | Babban zafin jiki sumul carbon karfe maras muhimmanci bututu | 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 ﹢3.18mm -0.79mm ＞26-34 ﹢3.79mm ﹣0.79mm ＞34-48 +4.76mm -0.79mm | Mafi ƙarancin kauri na bango a kowane wuri ba zai wuce kashi 12.5% na kauri na bangon injiniya da aka ƙayyade ba | Nauyin kowace bututun ƙarfe bai kamata ya wuce kashi 10% ko fiye da nauyin da aka tsara ba, kuma ba zai zama ƙasa da kashi 3.5% ko fiye ba. Sai dai idan mai samar da kayayyaki da Xu Fang suka amince akasin haka, ana iya auna bututun ƙarfe masu NPS na 4 ko ƙasa da haka a cikin rukuni-rukuni yadda ya kamata. |
| API 5L | Bututun bututun (masana'antar mai da iskar gas - bututun ƙarfe don tsarin jigilar bututun |  | ||
Lokacin Saƙo: Fabrairu-13-2025
