API 5L Gijin B Carbon Karfe Bututu Line Bututu
Takaitaccen Bayani:
API 5L Grade B bututun ƙarfe bututu ne na gama gari don jigilar mai da iskar gas.Hakanan ana kiranta da bututun L245, wanda aka ambata zuwa ISO 3183, mai suna bayan mafi ƙarancin ƙarfin amfanin ƙasa na 245 Mpa (355,000 Psi).
Daidaitaccen abu ASTM A106 B ko ASTM A53 B tare da irin wannan darajar a cikin abun da ke ciki, kaddarorin inji da aikace-aikace.
API 5L B ya ƙunshi PSL1, PSL2, sabis na tsami don bututun kan teku da na ketare.Nau'ikan masana'anta sun haɗa da maras sumul da walda.