High Quality Content by WIKIPEDIA articles! Wood's metal, named for American metallurgist B. Wood, is also known as Lipowitz's alloy or by the commercial names cerrobend, bendalloy, pewtalloy or MCP 158. This is a eutectic alloy, and 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.

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