STC Explained

What is the STC number in the gage part number?

STC stands for Self-Temperature-Compensation.  The number itself relates to the material coefficient of thermal expansion (CTE) that the gage is intended to be used on.  For example, STC 06 is for low-carbon steel, which has a CTE of approximately 6.7 ppm/°F (12 ppm/°C).  Self-Temperature-Compensation is a technique used when manufacturing the foil strain gage sensor to provide a gage response that minimizes the free expansion of a test part subjected to a change in temperature.  You can learn more about STC by reading Tech Note TN-504 and also from the Blog article on our StrainBlog website at:   For STC selection criteria, click here.

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Steve Smith

Technical Sales Manager