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Ever been in the field, a meeting or someones office and needed to check a pipe or flange rating. If so this is app for you.

Calculations are based on the ASME B31.3 2008 Process Piping code. Piping and Flange Calculator determines the required pipe schedule and ANSI flange rating based on the user inputted pressure, temperature, and corrosion allowances.

The results screen shows complete calculation details including both the calculated thickness, minimum suggested pipe schedule, stress value, pressure, temperature, and corrosion allowances.

It contains a wide of pipe sizes (1/2" to 24") and database of materials (carbon and stainless steel) including:
SA-333-6 SMLS
SA-333-6 Welded
SA-312/TP304L: Welded,EFWT-DBS
SA-312/TP316L: Welded,EFWT-DBS

If you would like any more materials added just ask and we will add them right away.

Piping and Flange Calculator works for both welded and threaded piping systems. The user can quickly see the selected pipe schedule and flange rating on the main input screen as well as the complete detailed calculations.

It is a very useful tool for anyone involved with the Oil and Gas or Petrochemical industries (i.e. engineers, designers, plant operators, etc)

Users can enter the data with sliders or using the keypad.

The user is also able to use whatever units they feel most comfortable with.

Send feedback to itouchitonce@me.com

What’s New

Version 2.0

New - Modern Interface
New - Simplified Layout
New - Supports Light Mode and Dark Mode
New - Automatic conversion between units of measure

Additional Calculations coming soon!

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

Userk0001 ,

Its good for a quick tool

Works ok has decent range of materials, I would only use for estimate anyway not design work

Xariyl ,

Quick calcs, accurate, limited material specs

Sadly limited list of materials, no option to change Grade (stress values).

App Privacy

The developer, iTouch It Once Software Corp., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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