1.75" OD x .188" wall x 48" DOM Carbon Steel Tube,Carbon Steel Tube 1.75" OD x .188" wall x 48" DOM, but a process that is applied to tubing after it is initially constructed,The cold drawing process causes the weld line to virtually disappear, Tensile strength (ksi) 80, DOM is actually not a type of tubing, DOM Carbon Steel Tube 1.75" OD x .188" wall x 48".