A tube is a closed shape used to perform some structural function.
applications of seamless tubes:
precise car tubes
hydraulic pressure transmission tubes
anti – explosion tube
tubes are usually produced in various dimensions according to their applications and standards.
the pipe and tube most known standards are API, ASME, ASTM, BS, JIS, DIN , St 35.8 , St 45.8 , 15 Mo3 ,St 33 , St33-2 ,St 35 , St 37-2 , St 44 , Ck 15 , Ck 22
thickness( WT ): 0.9 mm – 15 mm BWG 7 to 25
outside diameter (OD): 6 mm – 141 mm 3/8 to 4 In
Length to 20 m
dimensional accuracy : 0.05mm