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6061 T4 is a heat-treatable alloy with good formability, machinability, and moderate strength, which can still maintain good operability after annealing.
The main alloying elements of 6061 alloy are magnesium and silicon, and form Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect 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 copper in the conductive material to offset the influence of titanium and iron on electrical conductivity; Zirconium or titanium can refine grain and control recrystallization structure; For machinability, lead and bismuth can be added. Mg2Si is soluble in aluminum, so that the alloy has the function of artificial age hardening.
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6061 T651 is a heat-treatable alloy with good formability, machinability, and moderate strength, which can still maintain good operability after annealing.
The main alloying elements of 6061 alloy are magnesium and silicon, and form Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect 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 copper in the conductive material to offset the influence of titanium and iron on electrical conductivity; Zirconium or titanium can refine grain and control recrystallization structure; For machinability, lead and bismuth can be added. Mg2Si is soluble in aluminum, so that the alloy has the function of artificial age hardening.
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7075 T6 round aluminum bar belongs to Al-Zn-Mg-Cu superhard aluminum, 7075 alloy has been applied to the aircraft manufacturing industry in the late 1940s, and is still widely used in the aviation industry of ultra-high strength deformation aluminum alloy. It is characterized by good plasticity after solid solution treatment, particularly good heat treatment strengthening effect, high strength below 150℃, and particularly good low temperature strength; Poor welding performance; Prone to stress corrosion cracking; Need to be coated with aluminum or other protective treatment. Two-stage aging can improve the resistance to stress corrosion cracking. Zinc is the main alloying element in 7075, and adding magnesium to the alloy containing 3%-7.5% zinc can form MgZn2 with significant strengthening effect, so that the heat treatment effect of the alloy is far better than that of the aluminum-zinc binary alloy. With the increase of zinc and magnesium content in the alloy, the tensile strength will be further improved, but the resistance to stress corrosion and spalling corrosion will be decreased. Very high strength properties can be achieved by heat treatment. 7075 materials are generally added to a small amount of copper, chromium and other alloys, the series of 7075-T651 aluminum alloy is particularly high-quality, known as the best aluminum alloy products, high strength, far better than any soft steel.
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7A04 T6 is an Al-Zn-Mg-Cu superdegree aluminum alloy, also known as superduralumin, which is quite mature in superduralumin. An alloy of longer and wider use. High strength, good heat treatment strengthening effect, medium plasticity under annealing and newly quenched state; Different from duralumin, the corrosion resistance of artificial aging state is better than that of natural aging state, and the natural aging process is slow, and it takes 3 months to reach the peak age hardening, so 7A04 is used in the quenching artificial aging state. The alloy has good spot weldability, gas welding, good machinability after heat treatment, but poor machinability after annealing.
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Excellent weldability, corrosion resistance, formability and machinability.
6082 T4 is a heat-treatable alloy with good formability, machinability and corrosion resistance, while having moderate strength, it can still maintain good operation after annealing, mainly used in mechanical structure, including bars, plates, pipes and profiles. This alloy has similar but not identical mechanical properties to 6061 alloy, and its -T6 state has high mechanical properties. Alloy 6082 is a very commonly used alloy product in Europe, and also has a high application in the United States, suitable for processing raw materials, seamless aluminum tubes, structural profiles and custom profiles. 6082 alloy usually has very good processing characteristics and good positive reaction properties. Positive reaction methods include removal of impurities and dyeing, coating, etc.
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