ALLOYS

substances with metallic properties formed by the intimate union, usually by fusion, of different metals in varying proportions, or of a metal and a non-metal. The better known a’s are: bronze, gun-metal (copper and tin), bra (copper and zinc, sometimes with tin), steel (iron and carbon, with nickel, chromium, tungsten, etc.), type-metal (lead and antimony, often with tin, copper, or nickel), pewter (tin with a little copper), German_ silver (copper, zinc, and nickel), Britannia metal (tin, antimony, and copper), magnalium (aluminium and magnesium), A’s of mercury are called amalgams.