Stainless Steel Unistrut

Stainless Steel Unistrut

Due to its relatively higher cost and the introduction of the corrosion-resistant Defender finish, it seems like folks don’t talk about stainless steel Unistrut much these days. 

That said, we do come across applications where stainless is still the best option (e.g., food).  We’ve covered Unistrut Defender in prior posts, so this installment of Tech Talk is dedicated to stainless steel Unistrut.

To determine if a particular channel style or fitting is available in stainless steel, navigate to a particular section on our website, and consult the finish tab, as shown below.  In this case, we are showing the different finish and length options for P1000:

p1000 materials and finish selection chart

Regardless of part number, stainless steel is called out with two part number suffixes—SS for 304 stainless and ST for 316 stainless steel.  The images below reference the channel styles that come in stainless steel.

stainless steel strut

stainless steel unistrut


It’s not commonly specified, but if you need a stainless steel Unistrut closure strip for your application, ask about P1184.

stainless steel closure strips

If you project calls for stainless steel strut, chances are good you’ll need stainless steel channel nuts to connect your fittings:

stainless steel channel nuts with springs

As a reminder, most of the fittings found in the Unistrut General Engineering Catalog are available in stainless steel or aluminum.  We recommend using stainless steel channel nuts with aluminum channel. Download the Unistrut Special Metals Catalog for a printer-friendly reference guide to Stainless Steel Unistrut, or consult the Special Metals section in the Unistrut General Engineering Catalog.

Need Stainless Steel Unistrut Pricing?

Remember, stainless steel Unistrut is always going to be more expensive than similar materials in the Defender finish, but some applications require use of stainless steel strut.  If this is the case, and you need pricing and delivery information, contact Unistrut Service Company for further assistance.