IMHO, the best material for fret wires that looks like brass is EVO Gold (manufactured by Jescar). Its hardness is between nickel silver and stainless steel. I have them installed on my three new guitars. Highly recommended. You can buy it directly from Jescar, LMI or even e - b a y.
Last edited by bacsidoan on Mon Sep 02, 2013 12:13 pm, edited 1 time in total.