From tractors and harvesters to tillage equipment and sprayers, today’s farm machinery demands rugged, reliable components—and that starts with high-quality mechanical tubing and bar. National Tube Supply carries the tubing and bar products agricultural manufacturers rely on to keep machinery in the field and running strong.

We stock DOM tubing in grades 1020/1026/ST52.3/4130 and CDS 1026/ST52.3/4130 in sizes ranging from .375” OD x .277” ID up to 16” OD x 13.5” ID. Carbon HFS is available from 2.5” to 36” OD in a variety of wall sizes to fit your design needs.

For hydraulic systems commonly used in farm equipment, we hone DOM ST52.3/1020 and CDS 1026 from 1.625” OD x 1.25” ID up to 16” OD x 14.005” ID. Our chrome bar—ideal for hydraulic cylinder rods—comes in diameters from .500” to 12”, with chrome thickness options of .0005” or .001” per side. Induction hardening ensures these bars stand up to harsh agricultural environments.

Our experienced team is here to help you choose the right products for your specs, quality standards, and budget. We can even assist with demand planning and Just-In-Time (JIT) delivery to keep your operations running efficiently.

  • Drawn Over Mandrel Tubing (DOM)
  • Cold Drawn Seamless (CDS)
  • Hot Finish Seamless (HFS)
  • Honed Steel Tubing
  • Hydraulic Fluid Line Tubing
  • Cylinder Barrels
  • Pump Barrels

  • Chrome-Plated Piston Rods
  • Chrome ID Tubing
  • Chrome OD Tubing
  • 1020, 1026, 1045 Steel

Contact us to discuss your unique needs or request a quote. Our experienced team is always available to help you identify the best product for your project specifications, quality requirements, and bottom line. We have a massive inventory at your disposal with 8 locations across North America—and most orders ship next day!

The chrome bar shaft of a hydraulic pump on a construction vehicle.

Fluid Power

Energy Plant

Energy

Three yellow construction vehicles sit on tread-covered dirt.

Heavy Equipment

The underside of a commercial jet, showcasing wheels and engine.

Aerospace and Defense

Robots constructing cars on an assembly line.

Industrial Manufacturing

Agriculture Equipment