1. Regulations
  2. title 49
  3. chapter I-i1
  4. part 192
  5. subpart C
  6. § 192.115

View all text of Subpart C [§ 192.101 - § 192.127]

§ 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]

AUTHORITY: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101

SOURCE: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

CITE AS: 49 CFR 192.115