X313 lets ASME B31.3 users improve the reliability and speed of preparing piping engineering spreadsheets. You can easily get Code data for any included material and do the usual calculations with no need to rely on manually finding data or cumbersome look-up tables in your spreadsheets.

This documentation is a work in progress, please contact us with any queries

With the X313 add-in you get the following functions in your Excel spreadsheets:

• Allowable stress for any ASME B31.3 material and temperature
• Class rating for any B16.5 material group and temperature
• Outer Diameter lookup for B36.10/19 piping
• Wall thickness lookup for B36.10/19 piping
• Pressure thickness calculation to B31.3
• Minimum thickness accounting for corrosion and mill tolerance
• Lorenz factor calculation for bends
• Wall thickness selector that chooses the right schedule for a given minimum wall