I was thinking it would be nice to have materials that melted or broke at different temperatures and pressures, but that could require lots of elements, which would make a mess of the menu. Instead, would it be possible to have an element where the properties are set by TMP and TMP2 for melting point and breaking pressure respectively? To put it simply:

Variable Strength Material (VSMT?): solid, non-conductive, melts at a temperature determined by its TMP value (in Kelvin), breaks into powder form at a pressure determined by its TMP2 value. Default could be TMP=300 and TMP2=5

Broken Variable Strength Material (BVSM?): heavy powder, retains TMP value of VSMT when formed (if possible). Also melts at a temperature determined by its TMP value.

I believe this would be very useful as a building material. It would allow people to build things like reactors easily without having to use indestructable elements by simply tuning the TMP and TMP2 as needed. It could also be used for things like tanks, bunkers, armour and buildings, with the player setting them to be as weak or strong as desired. It could even be used in other ways, such as setting very low TMP or TMP2 values to react to small changes in pressure or temperature. A different name for it might be good though :P