Youngstown Tube manufactures Schedule 40 galvanizes pipe in sizes 1” thru 2” using only high quality domestic steel. This ensures a uniform superior product for roll grooving, welding or plain end uses. Youngstown Tube’s schedule 40 pipe is produced under ASTM A135/A795 Type E, Grade A, NH standards. Every piece is Eddy-Current tested and conforms to internal SPC testing and recording. Youngstown Tube Schedule 40 galvanized steel sprinkler pipe is hot dip galvanized coated to meet ASTM A-385-98 standards. A highly visible weatherproof sticker is applied to each piece of pipe and stored under roof, ready for immediate shipment.