Is the nozzle on the Areostruder brass or hardened steel.
Brass. E3D makes a hardened steel nozzle, so it can be user-replaced on the Lulzbot print heads. ITWorks3D.com makes very similar E3D Titan Aero heads for the Mini and Taz, and will “custom build” with upgraded E3D heat breaks, nozzles, etc. on request – so if you want one out-of-the-box with hardened steel, you might give them a shout.
You can also get the A2 Hercules hardened steel nozzles from 3DeXtech - very nice nozzle and you’ll probably only need to ever buy one: