Skip to content

Code 313

Code 313 Users Manual

Code 313 is a calculator for interpreting industrial radiographs in accordance with ASME B31.3.

Please read this description and watch the video below (Coming soon) before purchasing to decide if this is the app for you.

The app caculates the most common discontinuities such as cracks, incomplete penetration, internal porosity, slag inclusions, and undercutting.

It also calculates IQI (penetrameter) sizes.  It has three sections, welds with no reinforcement, and welds reinforced on one or both sides.

NOTE: The calculations for welds with reinforcement are based on the MAXIMUM allowable reinforcement.  The code references the “ESTIMATED” reinforcement, so use the numbers in the app with this in mind and as just references.

This app DOES NOT replace the code itself nor the need to have the code.  There are many other issues in the code that need to be referenced, this is just a calculator.  One common example is you need the porosity ccomparison charts from the code for reference and need to be able to reference the rules and conditions.

Use this app at your own risk.  No guarantee is made.  recommended use is as a second opinion to your own interpretation.