There are many types of metal powders We Supply , including: Common metals: Iron, steel, tin, nickel, copper, aluminum, and titanium Refractory metals: Tungsten, molybdenum, and tantalum Alloys: Bronze, brass, stainless steel, and nickel cobalt superalloys Functional metal powders: Silver, copper, nickel, cobalt, zinc, and gold Other powders: Boride, boron, carbide, nitride, oxide, silicon, silicide, rhenium