Aluminum profiles are available in a wide range of sizes and grades to meet different application needs. Sizes are typically categorized by series, such as 1000, 2000, 3000, 5000, 6000, and 7000, which correspond to different alloy types. Each series has various thicknesses and cross-sectional dimensions. Grades are determined by the alloy composition and temper, with common grades including 1050, 6061, 6063, and 7075. The temper indicates the hardness and strength, with 'T' followed by a number (e.g., T6 for 6061-T6). Profiles can be flat bars, angles, channels, or complex shapes and are used in construction, automotive, aerospace, and other industries.