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Tubing Size Selection
A Range of Sizes and Tolerances for the Most Demanding Applications
Small diameter tubing. When you're designing for a critical application, you need confidence that the sizes you need are available, meeting the stringent tolerances you demand.

Sizes
The Size Capability Reference Chart (Standard English Units / Metric Units) is a convenient guide to our commonly available tubing. If you don't see what you need, we may still be able to go outside the normal range, depending on our capabilities to do it right. Use this table as a general guide, but talk with us before making your decision. We may be able to help you find alternatives that better meet your needs.
Tolerances
Our standard commercial tolerances for round tubing are shown in the Tolerance Table. Contact us for exact tolerances on the specific dimensions in the material you want.

Lengths and Straightness
Our tubing is generally available in random multiple and cut lengths to 42 ft for straight cuts. Straightness tolerance for commercial round tubing is 0.010 in/ft. Typical coiled lengths range up to 1,500 ft; contact us for details for your specific requirement.


Standard Commercial Tolerances
OD Range (in) OD (in) ID (in) Wall (%)
Up to, but not including, 3/32 (0.09375) +0.002
-0.000
-0.000
+0.002
±10
3/32 to, but not including, 3/16 (0.1875) +0.003
-0.000
-0.000
+0.003
±10
3/16 to, but not including, 1/2 (0.500) +0.004
-0.000
-0.000
+0.004
±10
1/2 to, but not including, 1 1/2 (1.500) +0.005
-0.000
-0.000
+0.005
±10
1 1/2 to and including 2 1/2 (2.500) +0.010
-0.000
-0.000
+0.010
±10
While these tolerances are a general guideline, Superior Tube frequently can meet tighter tolerances on a specific configuration. Please call us with your requirements.

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