Including ease of extrudability into hollow and complex shape, simplicity in heat treatment, good electrical conductivity, satisfactory mechanical properties, good surface finish quality, high corrosion resistance, and good weldability for a wide variety of application. Several million tons of 6000-series alloy extrusions are produced every year. Application include bars and rods to intricate shapes such as door and window frames, automobile trim, building structure, electrical bus bar, heat exchanger and so on. For bright finish applications required for automobile trim, alloys such as 6463 or 6763 made from high-purity aluminum (99.8%) with very low iron (Fe) content are ured.