... 3/4"~48" WT:2.5~60mm Standards:ASTM A53/ASTM A106/API 5L/API 5CT/JISG3452 /JISG3454/ ... DIN1629 Gr.A,B,X42,X46 Seamless pipeOD:Various from 3/4" ... 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, C45, ... us. API 5L/5CT ASTM A106 GR.B/A53 GR.B Seamless Steel Pipe