What do you think dwarf fortress metal industry will look like in the future both moded and unmoded?
Personally I find metals and their alloys to be fascinating subjects and setting up my metal industry is my second favorite activity in dwarf fortress after killing goblins. So I like to think about what dwarf fortresses metal industry will look a few development arcs down the road, this is mostly my random musings on those possibilities.
currently the metal industry is ruled by whether or not something can be weaponized, because there is a better alternative for *almost* everything common item that can be made of metal. I can see this changing significantly when the toady one starts to implement wear on various materials, like mechanisms and other machinery. Then a major aspect of the metal industry would be producing wear resistance materials for use in mechanisms.
Another major use for the metal industry when it gets implements would be piping to move water and magma around without the need for lag inducing stack pumps. I would imagine more abundant metals like, oh say lead, will probably end up getting used for most of a forts water piping. For magma piping I can see nickle, which is unusually common in the dwarf multiverse, being the preferred metal.
Other metals I could see coming into play are cobalt, which could serve in the same role as nickle as magma piping on embarks where nickle is scarce. It would also be a useful for any magma related jobs like nickle acting as a acceptable replacement. When you look at it and its derivative products use in the wear resistant machinery though it is rapidly out shown by nickels wider range of cheaper alloys.
Tungsten has an immediate use in the current version of the game as a border-line melt proof material, with a melting point of 16160 U. I actually belief that melting point makes tungsten resistant to even dragon fire, so cages and doors for dragon training rooms. Tungsten would also serve as a useful material in the production of tungsten-carbide ceramics as not quite alternative to clay. The biggest difference between regular clay and tungsten carbide is tungsten's absurd weight, which makes it more suitable to things that wont be moved around to much. On the topic of tungsten weight that is the deciding factor in its use as weapons and armor, while it is extremely hard it is absurdly heavy. weighing close to 2.5 times the weight of iron for not quite the hardness of steel, it would only be able to serve effectively as a warhammer or mace.
mercury which we should be able to get from cinnabar will be useful in combination with gold or silver to geld stuff everything in gold or silver. Basically the dwarfs will mix mercury and their precious metal of choice together and turn it into a paste, apply this paste to the boring object in question, add heat and presto you have mercury poisoning and a gold gelded lead statue.