http://www.aluminum.org/Trade association for U.S. producers of primary aluminum, recyclers and semi-fabricated aluminum products, also offering publications, aluminum statistics and audiovisuals.Metallurgy
ICRI serves iron foundry members through technology transfer. Offers a technical paper on Grey Iron metallurgy and properties, originally presented in 1969.
The Copper Data Center is a bibliographic database covering the technological and environmental literature on copper, brass and bronze. It is created and maintained by the Copper Development Association Inc.