The 6XXX series of alloys contain the major alloying elements of Mg and Si and belong to medium strength heat treated aluminum alloys. Mg and Si forms fine ß" -Mg2Si precipitates as a strengthening phase, which uniformly distributes in the α-Al matrix, thereby strengthening the material. Appropriate control of the ß" -Mg2Si content and other alloying elements, such as Cu, Mn, Cr, Zr, Ti, and V produces alloys that meet customers' strength and processing requirements. Offers excellent corrosion resistance, and extremely good extrudability and weldability. Typical tensile strength: 125–400 Mpa (18–58 ksi). Mainly used in building constructions, automotive components, ships, and machinery.
The 6XXX series consists of low to medium-strength alloys, which are able to meet the needs of attractive cosmetic products such as the housings of high-end handheld 3C products, automotive sheet, auto parts and accessories, and solar panel frames, Forged Wheel, Trim, Crash box, Crank Case, etc.
Typical alloys: 6061, 6063, 6401, etc.
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6XXX series moderately high strength alloys can be used in structural applications requiring high strength, such as bicycle frames, rims, and head tubes, or other high-strength forged products; also widely used in transportation structures and industrial products.
Typical alloys: 6061, 6013, 6069, 6082, etc.