cobalt melts at 1495c and if cobalt will be irradiated it will become ct60 cobalt 60 most radioactive thing in game
and cobalt can be used for nuclear bombs and for special alloys and stel and as thermoelectric element something like temp sensor but it will create more spark whem heats max power at 10.000 c
I like it but steel is named METL and what do you mean by special alloys?