Wood's Metal

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Wood''s metal, named for American metallurgist B. Wood, is also known as Lipowitz''s alloy or by the commercial names cerrobend, bendalloy or pewtalloy. It is a fusible alloy with a melting point of approximately 70 °C (158 °F). It is a eutectic alloy of 50% bismuth, 26.7% lead, 13.3% tin, and 10% cadmium by weight. Wood''s metal is useful as a low-melting solder, low-temperature casting metal, high temperature coupling fluid in heat baths, and as a fire-melted valve element in fire sprinkler systems in buildings. Medical gas cylinders in the United Kingdom have a Wood''s metal seal which melts in fire, allowing the gas to escape and reducing the risk of gas explosion. A common use is as a filler when bending thin-walled metal tubes. For this use the tubing is filled with molten Wood''s metal.... Mehr