The 6061 aluminum is also called the Al-Mg-Si aluminum, the Al,Mg，Si elements are added in this kind of alloy. Currently more than 70 percent of the world’s aluminum extrusion materials are made from 6061 aluminum alloy, its composition mass fraction ranges are: Si 0.3% – 1.3%, Mg 0.35% ~ 1.4%. Within these narrow limitations, States developed hundreds of different components alloys.
The Txxx temper means that the materials have significant changes in product characteristics (such as mechanical properties, corrosion resistance, etc.) after a set of particular treatment processes. The 6 Series aluminum plates are mostly in that temper. The 6061 aluminum’s common seen Tempers are O temper, T4 temper, T6 temper and T651 temper. The alloy T651 state is stretched-T6-materials which eliminated the internal stress, which is more suitable for molding.
haomei 6061 aluminum has moderate strength, good corrosion resistance, weldability, and good oxidation effects. The following lists the properties of the three tempers under the6061 state:
| Alloy/temper | tensile strength
σb/Mpaσ0.2/Mpaδ/%
| HBS
10/500
| Yield
/Mpa
| ||
| 6061-O | 125 | 55 | 25 | 30 | 60 |
| 6061-T4 | 240 | 145 | 22 | 65 | 95 |
| 6061—T651 | 310 | 275 | 12 | 95 | 95 |
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