AA ANSI H35.2-2024 

American National Standard Dimensional Tolerances for Aluminum Mill Products 2024

standard by The Aluminum Association , 2024

The tolerances included in this Standard were developed by the Technical Committee of The Aluminum Association. They are broadly accepted both within the aluminum industry itself and by users of the metal. They are the basis of the dimensional tolerances specified in U.S. government, technical society, and other specifications for aluminum products. They represent the maximum deviation from specified dimensions that may be expected in any individual piece. For most pieces the deviation from specified dimensions will be less than the tolerance shown.

This Standard is a revision of “American National Standard Dimensional Tolerances for Aluminum Mill Products” issued in 2017 (ANSI H35.2-2017). It consists of numerous updates to the previous edition which are highlighted throughout the document.