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Pipeline Impact Modules

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CALCULATOR MODULE : ASME B31.3 Process Piping Minimum Temperature For Impact Testing   ±

Calculate ASME B31.3 process piping minimum temperature for impact testing from wall thickness and material type.

For carbon steel materials with a minimum temperature letter designation, the minimum temperature for testing can be calculated according to table 323.2.2A (curves A, B, C and D).

If the maximum stress is less than the design stress, the impact testing temperature can be reduced according to figure 323.2.2B using the stress ratio. The stress ratio is the maximum of hoop stress over design stress, combined stress over design stress, or operating pressure over pressure rating for pressure rated components. The reduction in impact testing temperature from stress ratio is valid for minimum temperatures listed in table A-1, and for minimum temnperatures calculated from a letter designation (curves A, B, C or D). Use the workbook ASME B31.3 data tables to look up minimum temperature and letter designation data.

Reference : ANSI/ASME B31.3 : Process Piping (2018)

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CALCULATOR MODULE : ASME B31.5 Refrigeration Piping Minimum Temperature For Impact Testing   ±

Calculate ASME B31.5 refrigeration piping minimum temperature for impact testing from wall thickness and material type.

For carbon steel materials with a minimum temperature letter designation, the minimum temperature for testing can be calculated according to table 523.2.2 (curves A, B and C).

If the maximum stress is less than the design stress, the impact testing temperature can be reduced according to figure 523.2.2 using the stress ratio (the ratio of design tensile streess over allowable stress). Use the hoop stress calculator to calculate the hoop tensile stress. Use the flexibility calculators to calculate longitudinal tensile stress. Use the workbook ASME B31.5 data tables to look up minimum temperature and letter designation data.

Reference : ANSI/ASME B31.5 : Refrigeration Piping And Heat Transfer Components (2013)

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CALCULATOR MODULE : Pipeline Dent   ±

Calculate pipe dent depth, dent energy and dent force using either the Ellinas and Walker equation, the Wierzbicki and Suh equation, or the general equation (John Brown).

References :

Elìinas, C. P., and Walker, A. C, Damage on Offshore Tubular Bracing Members, IABSE Colloquium—Copenhagen 1983, vol 42, pp. 253-261.
Wierzbicki, T. and Suh, M-S. Denting Analysis of Tubes Under Combined Loading. Report MITSG 86-5, Sea Grant Program, Massachusettes Institute Of technology, (1986).
John Brown Engineering And Construction.

DATA MODULE : ASME B31.3 Process Piping Minimum Temperature For Impact Testing ( Open In Popup Workbook )   ±
DATA MODULE : ASME B31.5 Refrigeration Piping Minimum Temperature For Impact Testing ( Open In Popup Workbook )   ±