heat distortion point

heat distortion point

[′hēt di‚stȯr·shən ‚pȯint]
(engineering)
The temperature at which a standard test bar (American Society for Testing and Materials test) deflects 0.010 inch (0.254 millimeter) under a load of either 66 or 264 pounds per square inch (4.55 × 105 or 18.20 × 105 pascals), as specified.
References in periodicals archive ?
temperature resistance--during welding operations and in the ovens on the painting line, the housing is exposed to temperatures as high as 482[degrees]F (250[degrees]C) over several hundred cycles; according to Victrex, PEEK has a heat distortion point of 600[degrees]F (315[degrees]C);