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Thanks to its strength, durability, and corrosion resistance, stainless steel square tubing is ideal for use in outdoor environments and other challenging applications. All stainless steel contains a minimum of 10.5% chromium content by mass, and this element imparts natural anti-corrosion properties that allow stainless tube to be used with harsh or acidic chemicals, fresh water, and salt water—elements that would quickly corrode standard carbon steel materials.



Common Applications

  • Structural applications
  • Framework and braces
  • Construction and architecture
  • Marine applications
  • Transportation/vehicular components
  • and more

Your #1 Source for Stainless Steel Square Tubing

Industrial Metal Supply stocks a large selection of 304/mill finish structural stainless tube. We offer a variety of standard sizes, and wall thicknesses, all in 20’ lengths; as needed, we can provide custom cut-to-length stainless steel square tubing to meet your exact requirements.

We also offer round stainless steel tube and rectangular stainless steel tube.

View our inventory to find the stainless tube you need, or use the filters at left to narrow your search. Request a quote or contact us for more information.

Structural Stainless Tube Options


  • 3/4”
  • 1”
  • 1-1/4”
  • 1-1/2”
  • 2”
  • 2-1/2”
  • 3”
  • 4”

Wall Thickness/Gauge

  • 1/4”
  • 7 GA
  • 11 GA
  • 16 GA
  • 18 GA