I have just completed revising HSMAdvisor's material library.

Around 20 different materials have been added.
Some speeds and feeds were adjusted as well.

New library is not yet available in the official release, but you cen get it as a separate file from here

Just scroll to the bottom of the page there and download the file.
Instructions of how to use it are there as well.

Once a new update is ready to be published i will include the new library into the official release.

The list of added materials includes Toolox, Weldox and other pre-hardened steels.

Also graphite was added to hard non-metals.