3003 Aluminum Sheet for Radiator Manufacturing | 1.5mm & Custom Sizes Product Introduction 3003 Aluminum Sheet is a manganese alloy known for its good corrosion resistance, weldability, and formability. This 1.5mm aluminum sheet provides a practical combination of strength, durability, and lightweight performance for manufacturing applications. For radiator and heat exchanger manufacturing , 3003 aluminum sheet offers a suitable balance of formability, weldability, corrosion