3003 aluminum is a 3000-series aluminum alloy: the main alloying addition is manganese, and it is formulated for primary forming into wrought products. 3003 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-3003. AlMn1Cu is the EN chemical designation. A93003 is the UNS number. Additionally, the AFNOR (French) designation is A-M1.