GroundRules
49 CFR 192.115: Temperature derating factor (T) for steel pipe.
Where this section sits in the code
- Title 49—Transportation
- Subtitle B—Other Regulations Relating to Transportation
- CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- SUBCHAPTER D—PIPELINE SAFETY
- PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
- Subpart C—Pipe Design
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.
Collected 2026-08-27T02:26:34Z. Source file · JSON