What are the major constituents of T6061 aluminum?

Answer 1

* Silicon minimum 0.4%, maximum 0.8% by weight
    * Iron no minimum, maximum 0.7%
    * Copper minimum 0.15%, maximum 0.40%
    * Manganese no minimum, maximum 0.15%
    * Magnesium minimum 0.8%, maximum 1.2%
    * Chromium minimum 0.04%, maximum 0.35%
    * Zinc no minimum, maximum 0.25%
    * Titanium no minimum, maximum 0.15%
    * Other elements no more than 0.05% each, 0.15% total
    * Remainder Aluminium
Source: Wikipedia