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e-CFR data is current as of October 19, 2020

Title 49Subtitle BChapter ISubchapter DPart 192Subpart C → §192.115


Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart C—Pipe Design


§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 less1.000
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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