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Characteristics and USES of 7075 aluminum alloy plate

Author : Author : Alex Updated : Sep 12, 2016 00:00
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Characteristics and USES of 7075 aluminum alloy plate

     7 series aluminum alloy is another common alloy, wide variety. It contains zinc and magnesium. Best is more common in the aluminum alloy strength of 7075 alloy, but it can't be welded, and its corrosion resistance is rather poor, many manufacturing parts with CNC cutting is 7075 alloy. Zinc in this series is the main alloying element, add a little magnesium alloy can make the material can be heat treatment, reached a very high strength characteristics.This series of materials are generally add a small amount of copper and chromium alloy, which numbered 7075 aluminum alloy is top grade, the highest strength, suitable for the plane frame and high strength fittings.

    7 series aluminum alloy is Al - zinc - Mg - Cu superhard aluminium, the alloy is in the late 1940 s has been applied in aircraft manufacturing industry, is still widely used in aviation industry deformation of ultra high strength aluminum alloy.Its characteristic is that after solid solution treatment and plastic, heat treatment reinforcement effect is very good, under 150 ℃ has high strength, and has very good strength at low temperature;Welding performance is poor;There is stress corrosion cracking tendency;Need to the package aluminum or other protective treatment.Two-stage aging alloy can be improved the ability of resistance to stress corrosion cracking.After annealing and quenching condition of plastic was slightly lower than the same state of 2 a12) was slightly better than that of 7 a04, plank of static fatigue. Notch sensitivity, stress corrosion performance is better than that of 7 a04. Density is 2.751. High strength heat treatable alloys.2. Good mechanical properties.3. Good workability.4. Easy processing, good abrasion resistance.5. T7351 status enhances the corrosion fracture sexual 6. Used for high pressure structure parts of high strength material. 7075 aluminum alloy plate

    7075 materials generally add a small amount of copper and chromium alloy, such as department of A7075 - especially top grade aluminum alloy, was regarded as the most excellent products in aluminum alloy, high strength, much better than any of the mild steel.The alloy with good mechanical and anodic reaction.

    On behalf of the purpose of aerospace, mould processing, mechanical equipment, fixture, especially used in the manufacture of aircraft structures and other require high strength, strong corrosion resistance

  • (1) the combination of the nature of the element with the highest percentage, said unless is listed a range or the lowest value.High stress structure air fixtures, truck, tower building, vessel, pipeline and other needs to have the strength of the application of construction area.Such as: aircraft parts, gears and shaft, the fuse parts, instrument into the valve shaft and gear, missile parts parts, turbine, keys, aircraft, aerospace and defense applications.
  • (2) in order to determine the appropriate numerical limit, analysis of observation or calculated values are based on standard rules (ANSI Z25.1) To show clear scope. 
  • (3) in addition to the alloy, alloy elements within the specified weight is usually on the analysis of the report indicates.But if in the process of analysis Doubt there are other elements or some elements suspected of being excessive, should further analysis until there are confirmed. 
  • (4) is not through the refining process of the content of aluminum in the aluminum alloy is the amount of other metal and the difference between the hundred pure aluminium - the difference Is the percentage of 0.01 or a little more.(percentage than the second decimal places)
  • (5) zirconium and titanium can contain up to 0.25%. 

    Zinc is main alloy elements in 7075, to 3% - 7.5% add magnesium, zinc alloy can form MgZn2 strengthening effect is remarkable, make the alloy heat treatment effect than in aluminum and zinc binary alloy.Improve the alloy of zinc and magnesium content, tensile strength will be further improved, but its resistance to stress corrosion and spalling corrosion with the decrease of ability.Subjected to heat treatment, can reach very high strength characteristics. 

7075 material is generally add a small amount of copper and chromium alloy, such as department of 7075 - T651 aluminum alloy is top grade, is praised as the most excellent products in aluminum alloy, high strength, much better than any of the mild steel.The alloy with good mechanical and anodic reaction.On behalf of the purpose of aerospace, mould processing, mechanical equipment, fixture, especially used in the manufacture of aircraft structures and other require high strength, strong corrosion resistance of high stress structure.

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