What are the differences between different types of aluminum coils?

Aluminum coils are differentiated based on their alloy composition, thickness, temper, and surface finish. Common types include 1000 series coils, which are pure aluminum with high ductility but low strength; 3000 series, known for their formability and used in cookware; 5000 series, which are non-heat-treatable and corrosion-resistant; and 6000 series, offering a balance of strength and corrosion resistance. Thickness varies from thin gauges for flexible applications to thick gauges for structural use. Tempers range from soft (O temper) to fully hard (H temper), affecting the coil's hardness and strength. Surface finishes can be plain, coated, or embossed, impacting aesthetics and performance. Each type is chosen based on specific industry requirements like construction, automotive, or packaging.