Square Tube Specifications

Stainless Steel Square Bars

When you purchase square bars from Stainless Shapes, we promise that all of our metals are tested and produced to the highest standards. We have over 25 years of experience in stainless steel and always deliver the highest quality for our customers. See our square tube specifications below.

Our Square Bar Tolerances

Under, In.
WallCD Over/
Under %
Length Inches
OvalityB Double Outside Diameter Tolerlance
When Wall Is:
Under 1/2 0.005 15 +1/8 –0 less than 0.015
1/2 to 1-1/2 excl. 0.005 10 +1/8 –0 less than 0.065
1-1/2 to 3-1/2 excl. 0.010 10 +3/16 –0 less than 0.095
3-1/2 to 5-1/2 excl. 0.015 10 +3/16 –0 less than 0.150
5-1/2 to 8 excl. 0.030 10 +3/16 –0 less than 0.240
8 to 8-5/8 excl. 0.045 10 +3/16 –0 less than 0.300

Optimum Pipe
Size (Inches)
OD Wall Cut
Over Under
1/8 to 1-1/2 1/64 1/32 +4.5% to
Over 1-1/2 to 4 1/32 1/32
Over 4 to 8 1/16 1/32
Over 8 to 18 3/32 1/32

Not Sure What You’re Looking for?

Give us a call today if you are unsure of what you are looking for. Stainless can be a tricky business to deal with unless you have the right experts to speak with. Our salesmen are on the line in Florida and Illinois, and they are ready to answer your calls and get you up and running with your stainless of choice. If you have any questions about our product line, our company, or what kind of stainless will go best with the job you need to be done, give us a call today at (800) 748-9811

    Select Your Metal:
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    Calculated Weights
    Approx. weight in lbs*
    *These weights should be used for estimation purposes only. Plate weight does not allow for kerf.
  • Calculator to get ID from OD and Wall of stainless steel tube
    ID Calculated
    Calculator to get Wall from OD and ID of stainless steel tube
    Wall Calculated
    *These results should be used for estimation purposes only.
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