Hexagon and Octagon Tube

Square, rectangular and round tube are what our mills run every day, but they are not all we make. Hexagon and octagon steel tube are made in Erie, Michigan on special request, quoted to your size, wall and length.

Across flats Across flats Across corners Hexagon Octagon

Why Flats.

A round tube turns in a clamp or a hand; a tube with flats does not. Hexagon and octagon tube give a part flat faces to grip, drive, index or bolt to, without machining them on.

Grip and Turn

Handles, levers and tool shafts that a hand or a wrench has to turn without slipping.

Drive and Index

Shafts and sleeves that carry torque or hold a fixed position, where a round tube would spin in its mount.

Posts and Frames

Posts, legs and frame members that take a hex or octagon fitting, or that need a flat face for each attachment.

What to Send for a Quote.

Hexagon and octagon tube are made to order, not from stock. The more of this the request has, the faster the quote comes back.

  • Shape and Size

    Hexagon or octagon, and the size across the flats. Tell us if your print gives it across the corners instead.

  • Wall

    In inches or gauge. What Tube Gauge Means converts one to the other.

  • Length

    Mill lengths, or the length you cut to. We can cut to your length.

  • Footage

    Feet per order and per year, so we can quote the run.

  • Spec and Finish

    The specification on your drawing, and hot rolled, pickled and oiled, or galvanized. See Finishes and Specs.

  • Your Print

    Attach it to the quote form if you have one, with any tolerance on the flats or corners.

Questions.

Ask us about anything not covered here.

Do you make hex tube?

Yes. Hexagon and octagon steel tube are made in Erie, Michigan on special request. Send the size across the flats, the wall, the length and the footage, and we will quote it.

Do you stock hexagon or octagon tube?

No. Both are made to order for each job, so the quote is for your size, wall and length.

How is hex tube measured?

Across the flats: the distance between two opposite flat sides. Across the corners is larger, about 1.155 times the across-flats size for a hexagon and 1.082 times for an octagon.

What sizes of square, rectangular and round tube do you make?

Square tube 1-1/2 x 1-1/2 to 6 x 6, rectangular 2 x 1 to 10 x 2 and the sizes between, and round 1.900 to 8.000 OD. See Capabilities.

Tell Us the Size,
Wall and Footage.

Hexagon or octagon, the size across the flats, the wall and how much you need. The quote form takes about two minutes.