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192.115—Temperature derating factor ( T ) for steel pipe.
The temperature derating factor to be used in the design formula in § 192.105 is determined as follows:
| Gas temperature in degrees Fahrenheit (Celsius) | Temperature derating factor (T) |
|---|---|
| 250 °F (121 °C) or less | 1.000 |
| 300 °F (149 °C) | 0.967 |
| 350 °F (177 °C) | 0.933 |
| 400 °F (204 °C) | 0.900 |
| 450 °F (232 °C) | 0.867 |
For intermediate gas temperatures, the derating factor is determined by interpolation.
[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-85, 63 FR 37502, July 13, 1998]
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