Wolfram|Alpha contains data on a large variety of metallic alloys. Physical, thermal and electrical properties, including conductivity, resistivity, density, strength, hardness, elasticity, heat capacity and thermal expansion coefficients, are available. Alloys can be referenced by chemical makeup, common name (e.g. bronze, brass, steel, etc.) or more specific designations, such as the Unified Numbering System (UNS) code.
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