Installation Default Directory: Materials

When you are working with the System Definer or Material to Material Calculator you can open the default Materials folder included with your installation.

At the bottom of the window under Material, click Load material to navigate to a material file.

There is a separate folder for materials saved using the Process Metallurgy Calculator. See Installation Default Directory: Process Metallurgy Materials.

For the Additive Manufacturing (AM) Module, the Material Properties library is managed by the software.

Screen shot of where to find the Materials files via the Thermo‑Calc Load Material button on the System Definer

The default directory where these material files are stored is based on operating system:

Operating System Materials Installation Directory
Windows

C:\Users\<user>\Documents\Thermo‑Calc\2025b\Materials
Linux

On Linux all user files are installed where the program is installed. If installed as root the default is:

/opt/Thermo‑Calc/2025b/Materials
macOS

/Users/Shared/Thermo‑Calc/2025b/Materials