That was a VERY suitable question. I need to rework some stuff a bit, brb with 3.12c/3.14b
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I think I was sleepy or something when I've answered about cobalt, but right now "iron" (hardened one) is somewhat better than bronze (which is a bit heavier and sharper so it makes up for that) and of course cobalt (which is actually around copper) and it's between bronze and steel...
Basically bronze weapons should be superior to iron, but iron armor should be less soft than bronze so it stops blades better.
So right now the parameters are correct as I wanted them, but I forgot to check them before I replied about cobalt (which is not that great as a weapon material except for blunt weapons and a mediocre armor).
So right now:
by compressive yield/fracture:Copper -> Cobalt -> Spellwood -> Black Bronze -> Bismuth Bronze -> Bronze -> Iron -> Sun Gold -> Steel -> Black Steel -> Red Steel -> Adamantine
by weight/density:Adamantine ->Iron -> Spellwood -> Sun Gold -> Steel -> Black Steel -> Red Steel -> Bismuth Bronze -> Bronze -> Cobalt -> Copper -> Black Bronze
by edge:
spellwood -> copper -> cobalt -> iron -> bismuth bronze -> black bronze -> bronze -> sun gold -> steel -> black steel -> red steel -> adamantine
There're many types of yields and parameters though, so it's just a general table. Still I hope it helps. So you can use the "edge" parameter to judge how good bladed weapons are (with relative compressive yield to consider armor piercing capabilities) and the density to judge how good blunt weapons are.
P.S. Note that singing arrows have awesome parameters in comparison to other arrows, so they pierce armor more.