Metal Mechanisms are Totally Possible.
I was in shock when I noticed that for Adamantium, in the trap components list in the Forge, Make Adamantium Mechanisms is listed. After some experimentation I discovered that this was tied to the [WEAPON] and [ANY_USE] tags. A side effect is the ability to make Siege Engine components (this is unavoidable) I looked around, and no one seems to have mentioned this. I missed this in the Wiki (if it is there). Was it too obvious? Is this something everyone but me already knew about?
At any rate, in case no one else has done this, I give you Gnome Iron, or Gnomeite for short:
[MATGLOSS_METAL:METAL_GNOMEITE]
[NAME:gnome iron][ADJ:gnomeite][COLOR:4:7:0]
[VALUE:11]
[SPEC_HEAT:450]
[WEAPON][ANY_USE]
[MELTING_POINT:13600]
[BOILING_POINT:15150]
[DAMAGE_PERC:25]
[SOLID_DENSITY:7850]
I wanted it to be magma safe so I modeled the stuff on Iron (very rusty bauxite-coloured iron), and the reactions I use for it are a modified set of 'steel' reactions:
[REACTION:MAKE_GNOMEITE]
[NAME:make gnome iron]
[SMELTER]
[REAGENT:2:METAL_ORE:IRON]
[REAGENT:1:REACTION_CLASS:FLUX]
[REAGENT:1:BAR:NO_SUBTYPE:COAL:NO_MATGLOSS]
[PRODUCT:100:2:BAR:NO_SUBTYPE:METAL:METAL_GNOMEITE]
[FUEL]
[REACTION:MAKE_GNOMEITE2]
[NAME:make gnome iron (use bars)]
[SMELTER]
[REAGENT:1:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:1:BAR:NO_SUBTYPE:METAL:PIG_IRON]
[PRODUCT:100:2:BAR:NO_SUBTYPE:METAL:METAL_GNOMEITE]
[FUEL]