API 5Lgabaɗaya yana nufin bututun ƙarfe na bututu (bututun bututu) na aiwatar da ma'auni, bututunkarfe bututuciki har da bututun karfe maras sumul da bututun karfen welded nau'i biyu. A halin yanzu a cikin bututun mai da muke yawan amfani da bututun ƙarfe na bututun ƙarfe nau'in karkace submerged arc welded bututu (SSAW), madaidaiciyar kabu submerged baka welded bututu (LSAW, juriya waldi bututu (ERW), bututu mara nauyiAn kullum amfani a cikin bututu diamita ne kasa da 152mm.
Ma'auni na ƙasa GB/T 9711-2011 bututun ƙarfe don tsarin jigilar bututun mai a masana'antar mai da iskar gas an haɗa shi bisa ga API 5L.
GB / T 9711-2011 yana ƙayyade buƙatun masana'antu don bututun ƙarfe mara nauyi da welded na matakan ƙayyadaddun samfur guda biyu (PSL1 da PSL2) don tsarin jigilar bututun mai a masana'antar mai da iskar gas. Don haka, mizanin ya shafi bututun ƙarfe maras sumul kawai da bututun ƙarfe na welded don jigilar mai da iskar gas, kuma bai dace da bututun ƙarfe ba.
Makin Karfe
A karfe maki na albarkatun kasa na karfe bututu na wannan API 5L misali ne GR.B, X42, X46, X52, X56, X60, X70, X80, da dai sauransu The karfe maki na karfe bututu ne daban-daban, da kuma bukatun ga albarkatun kasa. kuma samarwa ma daban-daban, amma daidaitattun carbon tsakanin nau'ikan karfe daban-daban ana sarrafa su sosai.
Matsayin inganci
A cikin ma'auni na bututu API 5L, ƙimar ingancin (ko buƙatun) don bututun ƙarfe an raba su zuwa PSL1 da PSL2. PSL taƙaitaccen bayani ne don matakin ƙayyadaddun samfur.
PSL1 yana ba da babban matakin buƙatun ingancin bututu; PSL2 yana ƙara buƙatun wajibai don haɗar sinadarai, ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan kaddarorin, da ƙarin NDEs.
Lokacin aikawa: Juni-24-2024
