Circular Hollow Section(ERW)
ERW (Electric Resistance Welded} pipes are welded longitudinally,manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge.
Weight = 3.14 x(diameter(mm) - thickness(mm)) x thickness(mm) x length(mtr) x 0.000785
