ASME B31.5 Allowable Pipe Stress Modules

Calculate ASME B31.5 refrigeration piping allowable stress (S), yield stress (SYT) and tensile stress (SUT) from the design temperature.

Stress values are calculated from temperature using Table 502.3.1 (US values). Change units on the setup page. For temperatures below the data range, the stress value is constant (fracture toughness should also be considered for low temperature operation). For temperatures above the data range the stress values can either be constant value for the end point, constant slope from the end point, or zero from the end point. Engineering judgement is required to use extrapolated values above the data range.

Use the data plot option to plot the allowable stress versus temperature for the selected material. Use the Data Table option to display the data table in the popup window. Use the Result Table option to display a table of allowable stress versus material type. Refer to the help pages for notes on the data tables. Use the workbook ASME B31.5 data tables to look up allowable stress data.

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

Change Module :

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• ASME B31.5 Refrigeration Piping Allowable Stress Data Module
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