Aluminum Sheet Plate
Aluminum is a popular metal used in sheet metal due to its flexibility, wide range of options, cost effectiveness, and other properties. The four most common aluminium grades available as sheet metal are 1100-H14, 3003-H14, 5052-H32, and 6061-T6.
Aluminum sheer/coil is noted for its excellent welding characteristics and formability by cold or hot working with commercial techniques. It cannot be hardened by heat treatment but only from cold working. Tempers H12, H14, H16 and H18 are determined by the amount of cold working imparted into the alloy.
Use of gauge numbers to designate sheet metal thickness is discouraged by numerous international standards organizations. For example, ASTM states in specification ASTM A480-10a: "The use of gauge number is discouraged as being an archaic term of limited usefulness not having general agreement on meaning."
Manufacturers' Standard Gauge for Sheet Steel is based on an average weight of 41.82 lb (18.96 kg) per square foot per inch thick.Gauge is defined differently for ferrous (iron-based) and non-ferrous metals (e.g. aluminium and brass).
During the rolling process the rollers bow slightly, which results in the sheets being thinner on the edges.The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are not representative of the Manufacturer's Standard Gauge, which has no inherent tolerances.