The difference between state T6 and t651 of 6061 aluminum plate is that, generally speaking, the internal stress of T6 will be larger and the processing will be deformed. The most suitable condition for machining is t651, which is drawn on the basis of T6. Magnesium and silicon are the main alloy elements to eliminate internal stress in 6061 aluminum plate, forming Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the adverse effect of iron; sometimes a small amount of copper or zinc is added to enhance the strength of the alloy without significantly reducing its corrosion resistance. There is also a small amount of copper in the conductive materials, which makes up for the bad influence of titanium and iron on the conductivity; zirconium or titanium can refine the grains and control the recrystallization structure. In order to improve processability, lead and bismuth can be added. In Mg2Si solid solution aluminum, the alloy has the function of artificial aging. The main alloy elements of 6061 aluminum alloy are magnesium and silicon, with moderate strength, good corrosion resistance, good weldability and good oxidation effect.
Alcoa 6061 has the advantages of excellent processing performance, good corrosion resistance, high toughness, no deformation after processing, easy coloring and good oxidation effect.
It is an Al Mg Si alloy with moderate strength, good plasticity and corrosion resistance. Especially in the case of no stress corrosion cracking, it has good weldability, corrosion resistance and cold working performance. It is a kind of alloy with wide application prospect. It can be used for anodizing and coloring, and can also be painted. It is suitable for various industries. The copper content is less, the strength is higher than 6063, but the quenching sensitivity is also higher than 6063. After extrusion, air quenching can not be realized, so solution treatment and quenching aging are needed to obtain high strength. '
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