SAE International TOLERANCES Aluminum Alloy Standard Structural Shapes AMS2204D

This specification covers established manufacturing tolerances applicable to aluminum-base alloy standard structural shapes. Standard structural shapes are shapes in certain standard alloys, tempers, sizes, and sections such as angles, channels, Tees, Zees, I-Beams, and H-Beams commonly used for structural purposes. These tolerances apply to all conditions, unless otherwise noted. The term "excl" applies only to the higher figure of the specified range. Tolerances in U.S. conventional units are primary; tolerances in SI units are shown as the equivalent of the inch/foot/degree dimensions and are not to be construed as standard for product produced to SI dimensions.