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The differences between AL6061, AL6063 and AL6005

6063 is a low alloyed Al-Mg-Si high plastic alloy. It has many valuable characteristics:
  1. Heat treatment strengthening, high impact toughness, insensitive to gaps.
  2. It has good thermoplasticity, which can be extruded into various profiles with complex structure, thin wall and hollow ata high speed, or forged into forgings with complex structure. The quenching temperature range is wide and the quenching sensitivity is low. After extrusion and forging demoulding, as long as the temperature is higher than the quenching temperature, it can be quenched by spraying water or through water. Thin-walled parts (δ<3mm) can also be air-quenched.
  3. Excellent welding performance and corrosion resistance, nostress corrosion cracking tendency, in the heat treatment can strengthen the aluminum alloy, Al-Mg-Si alloy is the only alloy that has not found stress corrosion cracking phenomenon.
  4. The surface after processing is very smooth and easy to anodize and color. The disadvantage is that after quenching, if it is parked at room temperature for a period of time, it will have an adverse effect on the strength in aging (parking effect).

In the national standard GB/T3190 stipulated in the 6063 aluminum alloy composition range, the value of the chemical composition is different, will get different material characteristics, when the range of chemical composition is large, the performance difference will fluctuate in a wide range, so that the comprehensive performance of the profile will be uncontrollable.

AL6005 extruded profiles and tubes for structural parts that require strength greater than 6063 alloys, such as ladders and TV antennas. Let’s wait in patience. The strength between 6061 and 6063, can do T5 and T6 status. It is also commonly used to extrude aluminum materials, some complex cross-section profiles 6061 can not do, but the hardness and requirements, usually with 6005T6 materials instead. At present, the most used on the market is the solar border, and the good solar border is extruded with 6005 materials.