AA - ANSI H35.2
American National Standard Dimensional Tolerances for Aluminum Mill Products
|Publication Date:||1 December 2017|
Bar-A solid wrought product that is long in relation to its cross section which is square or rectangular (excluding plate and flattened wire) with sharp or rounded corners or edges, or is a regular hexagon or octagon, that is typically supplied in straight lengths and in which at least one perpendicular distance between parallel faces is 0.375 inch or greater. In North America, below this limit the product is called "Wire." In Europe, bar is supplied in straight lengths; if supplied in coiled form, the product is called "Wire."
Fin Stock-Coiled sheet or foil suitable and intended for manufacture of fins for heat-exchanger applications.