The difference between the state of 6061 aluminum plate T6 and T651 is that in general, the internal stress of T6 will be relatively large, and the processing will be deformed. The most suitable state for processing should be T651, which is stretched on the basis of T6 to eliminate internal stress.
The main alloying elements of 6061 aluminum alloy are magnesium and silicon, and form the Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effects of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without significantly reducing its corrosion resistance; there is also a small amount of conductive material. copper to offset the adverse effects of titanium and iron on electrical conductivity; zirconium or titanium can refine grains and control recrystallization structure;
In order to improve machinability, lead and bismuth can be added. Mg2Si is solid-dissolved in aluminum, which makes the alloy have artificial aging hardening function. The main alloying elements in 6061 aluminum alloy are magnesium and silicon, which have medium strength, good corrosion resistance, weldability, and good oxidation effect.
Aluminum 6061 has excellent processing performance, good corrosion resistance, high toughness, no deformation after processing, easy coloring, and excellent oxidation effect.