... ,A,B Seamless pipeOD:Various from 3/4" to 48"WT:Various from 2.5mm to 60mmMaterial: ASTM A53, ASTM A106,,10 ... #, 20#, 45#, 16Mn, A25,A25P,A,B,X42,X46, X52,X56,X60,X70 C20 ... steel pipe, welded pipe, galvanized pipe, square tube, ERW pipe and fittings, please feel free to contact us. API 5L/5CT ASTM A106 GR.B/A53 GR.B Seamless Steel Pipe ...