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Code of Federal Regulations Title 49. Transportation § 49.192.115 Temperature derating factor (T) for steel pipe

Current as of January 02, 2025 | Updated by Findlaw Staff

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.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 49. Transportation § 49.192.115 Temperature derating factor (T) for steel pipe - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-49-transportation/cfr-sect-49-192-115/

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