{"data":{"id":"us/49-cfr-192.115","jurisdiction":"us","citation":"49 CFR 192.115","heading":"Temperature derating factor (T) for steel pipe.","body":"The temperature derating factor to be used in the design formula in § 192.105 is determined as follows:\nGas temperature in degrees Fahrenheit (Celsius) Temperature derating factor (T)\n250 °F (121 °C) or less 1.000\n300 °F (149 °C) 0.967\n350 °F (177 °C) 0.933\n400 °F (204 °C) 0.900\n450 °F (232 °C) 0.867\nFor intermediate gas temperatures, the derating factor is determined by interpolation.","path":["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"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"1cd731dc3b12ea0ef5a1c488ab872c9e1489e91bb890becb080051fe4b711750","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-192.113","next":"us/49-cfr-192.117-192.119"},"notice":"GroundRules: Original legal text. Not legal advice."}