No, for the most part, metals having magical properties is due to the three Metallic Arts of Allomancy, Feruchemy and Hemalurgy. Rosharan fabrials work on similar Cosmere-wide principles, but they are fuelled by spren & gemstones not metals. Spanreeds in particular, use conjoiner fabrials, you might be interested in checking out the Coppermind page which I'll link down below:
https://coppermind.net/wiki/Fabrial