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PRCI Report 214
- Pressure Capacity of MSS SP-75 Fittings
- Report / Survey by Pipeline Research Council International, 01/01/1995
- Publisher: PRCI
$248.00$495.00
L51721e
Battelle Memorial Institute
Need: Fittings specified to be in accordance with MSS SP-75 have been found by purchasers to have fitting yield strengths less than the matching specified pipe without the marking required in MSS SP-75 17.1c. As will be discussed, there are two strength requirements in MSS SP-79 Section 8 Tensile Properties.
Benefit: The report provides guidance for the evaluation of "as-received" fittings. The types of fittings considered are elbows, tees, caps and reducers conforming to Manufacturers Standardization Society Standard Practice 75, "Specification for High Test Wrought Butt Welding Fittings (1993 edition).
Result: Guidance for estimating the burst strength of fittings is in the form of functionality relating burst-strength rations to ultimate tensile-strength ratios. Also concepts are presented that allow for the estimation of yield pressure for a fitting. The latter is given as a "first approach" to the subject as the yield pressure of a fitting has not been precisely defined.
Battelle Memorial Institute
Need: Fittings specified to be in accordance with MSS SP-75 have been found by purchasers to have fitting yield strengths less than the matching specified pipe without the marking required in MSS SP-75 17.1c. As will be discussed, there are two strength requirements in MSS SP-79 Section 8 Tensile Properties.
Benefit: The report provides guidance for the evaluation of "as-received" fittings. The types of fittings considered are elbows, tees, caps and reducers conforming to Manufacturers Standardization Society Standard Practice 75, "Specification for High Test Wrought Butt Welding Fittings (1993 edition).
Result: Guidance for estimating the burst strength of fittings is in the form of functionality relating burst-strength rations to ultimate tensile-strength ratios. Also concepts are presented that allow for the estimation of yield pressure for a fitting. The latter is given as a "first approach" to the subject as the yield pressure of a fitting has not been precisely defined.
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