Welded rolled pipe is made from sections of plate rolled into cans. The seam of the can is welded and then the individual cans are welded together to make the finished pipe. Rolled and welded pipe can be made in diameters of up to 16 feet and over 2 inches in thickness.
Rolled and welded pipling can be used for different types of applications. For example, vertical shafts for mines can be lined with large diameter casing. Casing can also be used for the ever increasing sizes of drilled shafts. Jack and bored pipe, high capacity piles, and tanks are other common uses for rolled and welded pipe.