Aluminum Standards and Data 2024 (U.S. Customary Units) is The Aluminum Association's comprehensive reference for wrought and cast aluminum products, prepared by its Technical Committee on Product Standards. It combines, in U.S. customary units, the Association's chemical composition limits for wrought and cast alloys, mechanical property limits and typical properties, dimensional tolerances for mill products, and physical and thermal properties. The manual also explains the alloy and temper designation systems, describes metallurgical characteristics and fabrication practice, and gives data on nominal densities and weights. Engineers, fabricators, distributors and inspectors use it to select alloys and tempers, to prepare and check specifications, and to verify that delivered material conforms to the applicable product standard.