| Daidaitawa | Maki | Class |
| API | API 5L | Bututun layi don tsarin sufuri na bututu |
| API 5CT | Tubing da kwandon rijiyoyi |
| API5DP | Shuka bututu don hako rijiyoyin |
| ASTM | ASTM A53 | Ana amfani da shi azaman ƙarfe na tsari ko don ƙarancin matsi |
| ASTM A106 | sumul carbon karfe bututu don high-zazzabi sabis |
| ASTM A335 | don bututun ƙarfe-karfe maras sumul don sabis na zafi mai zafi |
| ASTM A213 | don ferritic maras sumul da austenitic alloy-karfe tukunyar jirgi, superheater, da bututun musayar zafi |
| ASTM A179 | domin sanyi-jawo low-carbon karfe zafi-exchanges da condenser bututu |
| ASTM A192 | don bututun tukunyar jirgi na carbon karfe maras kyau don sabis na matsin lamba |
| ASTM A210 | don matsakaita-carbon karfe tukunyar jirgi da superheater tubes |
| ASTM A333 | don bututun ƙarfe mara nauyi don sabis na ƙarancin zafin jiki da sauran aikace-aikace tare da taurin daraja da ake buƙata |
| ASTM A519 | ga carbon maras kyau da gami karfe inji tubing |
| ASTM A252 | ga tulin bututun karfe maras sumul da waldadi |
| DIN | Farashin 17175 | domin zafi resistant karfe bututu Lines |
| DIN 1629 | don bututun madauwari marasa ƙarfi na ƙarfe mara nauyi tare da buƙatun inganci na musamman |
| DIN 2391 | ga sanyi zana ko sanyi birgima madaidaicin bututun ƙarfe maras sumul |
| JIS | Saukewa: G3454 | m carbon karfe bututu don matsa lamba sabis |
| Saukewa: G3456 | sumul carbon karfe bututu don high zafin jiki sabis |
| Saukewa: G3461 | sumul carbon karfe bututu ga tukunyar jirgi da zafi Exchanger |
| EN | EN 10210 | don zafi ƙãre m tsarin m sassa na non gami karfe |
| EN 10216 | bututun ƙarfe mara nauyi don dalilai na matsa lamba |
| BS | Farashin BS3059 | don carbonalloy da austenitic bakin karfe shambura tare da ƙayyadadden kaddarorin zafin jiki |