D_TEXTBLOCK_TEXT Manganese bronze is an alloy, consisting of mainly <HL Topic=Copper.tpc>COPPER</HL> and zinc, with some amounts of <HL Topic=Iron.sub>IRON</HL>, <HL Topic=Aluminum.sub>ALUMINUM</HL>, <HL Topic=Silicon.sub>SILICON</HL>, tin, and lead. This material has good resistance to corrosion in rural, industrial, and marine atmospheres. It can be used in pumps, clutches, and valves.