API 5L ERW Welding Pipe OD 21.3mm-----630mm WT 1.5mm----14mm Material ... Q345(B),#ETC Standard BS1387,EN10255,EN102 API 5L ERW Welding Pipe Scaffold TubeItemDetailsOuter Diameter21.3mm-----630mmWall Thickness1.5mm----14mmLength5m-----18 ... Charpy Impact Test,Metallographic ExaminationFinal Product TestHydraulic Test, On-line and off-line Ultrasonic Test,Tensile Test ,Yeild Strength,Elogation,Hardness ...