ASTM A234 yog tus qauv cov qauv rau cov yeeb nkab fittings ntawm wrought carbon hlau thiab alloy steel rau kev muaj pes tsawg thiab ntsuas kub. Carbon Steel Yeeb Nkab Fittings rau ASMT A234 feem ntau yog cov khoom hauv pob tw raws li ASME B16.9 lossis ASME B16.49. Muaj ob lub roj carbon standes: WPB thiab WPC, ntawm uas ASTM A234 WPB feem ntau siv hauv kev lag luam pipeline feem ntau siv. A234 WPB pob tw-vuam yeeb nkas fittings suav nrog tshib, khoov, rov taws, txiv ntoo pob qij txha xaus, txiv ntoo thiab cov couplings.
Tom qab sib sau ntawm ib qho kub thiab txias, fittings tau txias rau qhov kub thiab txias hauv qab no qhov kev mob siab txias, tab sis tsis muaj ib qho kev hloov pauv sai dua li cov cua txias ntau dua li cov huab cua txias. Kev kho cua sov teev cov hlau (ntu) kub. Cov fittings kub-kho tau raug kho raws li pawg lus 7 hauv kev qhia tshwj xeeb A960 \ / A960M.