A free program for Android, by Gellis apps.
The Fabricators Handbook is an application to calculate various parameters of pipes and other shapes, such as diameters, circumferences, and lengths. It includes tables for various types of metals, including aluminum, steel, and copper. In addition, you can find tables for the most common types of holes, such as D-, L-, and M-shaped holes.
If you have a job where you need to do a lot of calculations, this application is ideal for you. The application will save a lot of time, because it is so simple to use. The most important thing is that you can use it for free.
