ASME B31.1 Power Piping Thermal Expansion

Calculate ASME B31.1 power piping thermal expansion from temperature (ASME B31.1 Table C-2).

Table C-2 provides thermal expansion strain data (mm/m) from 20 degrees C base temperature. The expansion data is used to calculate

• thermal expansion strain from 20 degrees C to the design temperature
• thermal expansion strain from the design base temperature to the design temperature
• thermal expansion length from the design base temperature to the design temperature
• thermal expansion coefficient at the design temperature
• The average thermal expansion coefficient from the design base temperature to the design temperature

Use the data plot option to plot thermal expansion 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 expansion coefficient, expansion strain and expansion length versus material type. Strain (ε) has units meter per meter [m/m]. The expansion strain data uses units of milli meter per meter [mm/m] or [mε] milli strain. Change input and output units on the setup page. Refer to the help pages for notes on the data table (click the resources button on the data bar). Use the workbook ASME B31.1 data tables to look up expansion strain data.

Reference : ANSI/ASME B31.1 : Power Piping (2014)

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