... Out Diameter: 20.00mm - 200.00mm Round pipe material; Q235 Products Description: Welded Round Steel Pipe1) Material of weld steel ... pipe: Q195, Q215, Q235, Q345, X52, X60 STK500, ... Wallthickness: From 0.8mm to 12mm5) Length of each pipe: 5.8m, 6m, 11.8m or 12m, or ... /OD, or on the requirement of client Welded Round Steel Pipe