hat
ASTM A671, Creole Specification pou elektrik-Fusion-soude tiyo Steel pou tanperati atmosferik ak pi ba. Klas yo dwe deziyen ki kalite plak itilize pandan klas la dwe deziyen kalite tretman chalè ki fèt pandan fabrikasyon tiyo a. Gwoup yo dwe deziyen pou si weld la se radiografik egzamine, ak jan yo si tiyo a se presyon teste.
eng
ASTM A671, Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures. Grades shall designate the type of plate used while class shall designate the type of heat treatment performed during pipe manufacture. Class shall be designated as to whether the weld is radiographically examined, and as to whether the pipe is pressure tested.