This industry comprises establishments primarily engaged in manufacturing welded, riveted, or seamless pipe and tube from purchased iron or steel.

• Boiler tubes, wrought, made from purchased iron
• Conduit, welded and lock joint, made from purchased iron or steel
• Pipe (e.g., heavy riveted, lock joint, seamless, welded) made from purchased iron or steel
• Tube (e.g., heavy riveted, lock joint, seamless, welded) made from purchased iron or steel
• Tubing, mechanical and hypodermic sizes, cold-drawn stainless steel, made from purchased steel
• Well casings (e.g., heavy riveted, lock joint, welded, wrought) made from purchased iron or steel