| Samfuri | Bakin Karfe Mara Sumul | Ƙayyadewa |
| Kayan Aiki | Karfe na Carbon | OD: 13.7-610mm Kauri: sch40 sch80 sch160 Tsawon: 5.8-6.0m |
| Matsayi | Q235 = A53 Aji B L245 = API 5L B /ASTM A106B | |
| saman | Baƙi An fenti | Amfani |
| Ƙarshe | Ƙarshen layi | bututun ƙarfe na isar da mai / iskar gas |
| Ko kuma ƙarshen da aka yanke |
Ana ƙera bututun ƙarfe marasa sumul bisa ga ƙa'idodi daban-daban don biyan buƙatun aikace-aikace daban-daban da ƙayyadaddun masana'antu. Ga wasu daga cikin ƙa'idodi da aka fi amfani da su don bututun ƙarfe marasa sumul:
ASTM (Ƙungiyar Gwaji da Kayan Aiki ta Amurka):
ASTM A53: Takamaiman ƙayyadaddun bayanai don bututu, ƙarfe, baƙi da tsoma-zafi, an rufe shi da zinc, an walda shi, kuma ba shi da matsala.
ASTM A106: Takamaiman ƙayyadaddun bayanai don bututun ƙarfe na carbon mara tsari don sabis mai zafi mai yawa.
API (Cibiyar Man Fetur ta Amurka):
API 5L: Bayani dalla-dalla game da bututun layi, wanda ake amfani da shi don jigilar mai da iskar gas.











