# HAR 6-77-34 Temperature derating factor (T) for steel pipe

- **operation:** document
- **citation:** HAR 6-77-34
- **title:** HAR 6-77-34 Temperature derating factor (T) for steel pipe
- **source type:** regulation
- **agency:** Hawaii Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** 1994-04-15
- **effective on:** 1994-09-03
- **summary:** factor to be used in the design formula in section 6-77-29 is determined as follows: _____________________________________________________________________ │Temperature │derating Gas temperature in degrees Fahrenheit │factor (T) │ 250 or less.............................................│ 1.000 300...
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**body:**

factor to be used in the design formula in section 6-77-29 is determined as follows: _____________________________________________________________________ │Temperature │derating Gas temperature in degrees Fahrenheit │factor (T) │ 250 or less.............................................│ 1.000 300.....................................................│ 0.967 350.....................................................│ 0.933 400.....................................................│ 0.900 450.....................................................│ 0.867 │ For intermediate gas temperatures, the derating factor is determined by interpolation. [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.115, October 1, 1990)
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