Model Number

2 3/8 inch OD thru 24 inch OD.

ElectricElectric Resistance Weld pipe is normally produced in sizes from 2 3/8 inch OD thru 24 inch OD.

ERW is produced from individual sheets or continuously from rolls of skelp. There are two important differences in the production of ERW pipe as versus CW pipe. ERW pipe is cold formed into a cylindrical shape rather than hot formed. An electric current rather than a flame is used to heat the edges of the strip for the fusion weld. Revolving copper discs serve as electrodes and raise the temperature to about 2600°F for effective welding. As in CW pipe, no extraneous metal is added; in fact, due to the extreme pressure of the rolls, steel is extruded on both the inside and outside of the pipe at the point of the weld. This is called flash and is removed on the O.D. by stationary cutters while still white-hot for A252 grades, and both the I.D. and O.D. for other grades. As in CW production, ERW pipe is subject to numerous finishing operations. ERW pipe is primarily used as API Line pipe for the transmission of gas and oil. It is also used for the transmission of water, under AWWA specifications, as piling and slurry pipe and in mechanical applications.

ERW pipe is available in the following most common specifications:
ASTM A-53 Grade A & B; A-135; A-252 Grade 1,2,3; API5L Grade A & B; and API5LX42 thru X-80

ERW pipe is available in lengths from single random to 120 feet depending on mill capability. Maverick Tube produces lengths up to 85 ft. in one piece. ERW pipe is available with square ends or beveled for welding, threaded and coupled and victaulic grooved. Surface finish are available in black or bare, or with protective coatings.

Major purchasers of ERW pipe are:
Utility Companies, Oil Companies, Steel Fabricators, Piling Contractors, Dredging Contractors, Water Well Contractors, Pipe Distributors, Pipe Line Companies, and Federal, State, and Local Governmental Agencies.