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Cold Rolled Steel Tubing & Tube Supplier

Cold Rolled material is a smoother, less porous surface than Hot Rolled material - normally used in surface critical applications. The added processing of cold rolled steel tubing gives this material closer dimension tolerances and a more consistent surface than hot rolled steel.

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Why LJT as your Cold Rolled Steel Tubing & Tube Supplier?

  • LJT has the ability to custom engineer corner radii to customer requirements – including multiple corner radii in the same tube
  • Traditional rectangular shapes can be engineered into flat ovals to create a tube with less steel content and a differentiating shape for the customer such as a “D” shaped tube
  • Cut to length tube and laser cutting
  • LJT provides consistency from run to run, month to month, and year to year. We source our raw material in heat lot quantities producing a product our customers are able to process effectively and efficiently - often reducing their manufacturing costs. 
  • We provide a Total Value Product allowing customers to forecast usage to LJT and facilitate a vendor managed inventory program


Lock Joint Tube is always willing to think outside the box and invest in equipment to meet customer evolving requirements.

We Can Accommodate Special & Unique Requirements

Custom Tubing Solutions for Your Application


CRCS, CRHSLA, and CRDP with CRCS and Plating Quality finishes


Round, Square (sharp & regular corner), elliptical oval, flat oval, peanut oval, rectangle (sharp & regular corner), octagon, and D-oval.  As a cold rolled steel tubing supplier, we are happy to offer a wide variety of shapes for all of your needs!

Sizes & Capabilities

20 gauge (.030 min) through 11 gauge (.108 min) available

  • 72 Round tubes: .625 – 6.625 OD
  • 42 Squares: .500-5.250
  • 82 Rectangles: .375 x .875 – 3.000 x 6.000


ASTM A513, & ASTM A500


Office Furniture, Hospital Equipment, Music Room Furniture, Barbeque Grills, Automotive, Store Fixtures, School Furniture, Fitness, and Food Service Applications

Have a Question?
Our experts can help

Give us a call at 800-257-6859 or leave us a message.

Ask a Tubing Expert