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7075-T651 Aluminium Plate

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7075-T651 Aluminium Plate

7075-T651 Aluminium Plate

7075 aluminium plate is a typical high strength alloy plate of 7xxx series alloy, also counted as one of the few highest strength alloys in aluminum alloy plate.

Zinc is the primary alloying element giving it strength comparable to steel.
It has good plasticity after solid solution treatment, excellent heat treatment strengthening effect, high strength below 150 degrees, and good low-temperature strength and welding performance.
It tends to stress corrosion cracking, double-stage aging can improve anti-SCC performance.

It is mainly used in manufacturing aircraft structures and other high-stress structural parts requiring high strength and corrosion resistance,
such as aircraft upper and lower airfoil wall panels and trusses.
It is also widely used in the mold processing, mechanical equipment, tooling, fixtures, etc.

Alloy – temper :

7075 – T651

Characteristics :

High strength heat treatable alloy.

Good mechanical properties.

Good serviceability.

Easy to machine, good wear resistance.

Good corrosion resistance and oxidation resistance.

    7075 Aluminium Plate abilities


    • O

    • T6

    • T651

    • T7x51


    • 4.0 – 150mm


    • 1100 – 2000mm


    • 2000 – 6000mm


    • EN 485

    • ASTM B 209


    7075-T651 Aluminium Plate-application

    Technical Data Sheet

    Cr0.18 – 0.28
    Cu1.2 – 2
    Fe 0.05 max
    Mg2.1 – 2.9
    Mn0.3 max
    Si0.4 max
    Ti0.2 max
    Zn5.1 – 6.1
    Zn + Ti0.25 max
    Cutting propertieswell
    Corrosion resistancenormal
    Electrical conductivity40-50%IACS (20℃/68℉)
    Density2.85 g/cm3 (20℃)
    Tensile strength570 MPa
    Yield strength505 MPa
    Hardness Brinell150
    Maximum shear stress330 MP

    The provided chemical compositions and mechanical properties are general approximations.
    Please contact our Customer Service Department for Technical Data Sheet.

      Heat treatment

      Zinc is the primary alloying element in 7075.

      Zinc is the primary alloying element in 7075. Adding magnesium to a 7075 alloy containing 3%-7.5% zinc can form a significantly strengthened MgZn2, making the heat treatment effect of this alloy far superior to that of aluminum-zinc binary alloys. By increasing the zinc and magnesium content of the alloy, the tensile strength will be further improved, but its resistance to stress corrosion and to spalling corrosion will then be reduced.
      The 7075 material is generally alloyed with a small amount of copper and chromium. 7075-T651 is mainly well known as the best aluminum alloys with high strength and far superior to any soft steel.

      Typical Applications

      7075 aluminum plate is most commonly used in aerospace, mold processing, mechanical equipment, jigs, and fixtures, especially for aircraft manufacturing structures and structural bodies with high strength requirements and corrosion resistance.

      7075-T651 Aluminium Plate-application

      It is also used on trucks, towers, boats, pipelines, and other constructions where strength, weldability, and corrosion resistance are required. Examples include blown film, golf heads, shoe film, turbines, keys, aircraft and even missile parts, jump-in valve parts, etc.

      Performance of 7075 Aluminium plate with different heat treatments


      After solution heat treatment, natural aging, and cold working state, suitable for hard products worked to improve their strength.


      The solution heat treatment is followed by artificial aging. Applicable to products that are no longer cold worked after solution heat treatment (straightening and leveling can be carried out but do not affect the mechanical properties).


      Applicable to thick plates that have been drawn in specified amounts after solution heat treatment or since the cooling of the high temperature forming process.


      After solution heat treatment, aging treatment was carried out for optimum stress corrosion cracking resistance.


      The solution heat treatment is followed by the tensile removal of residual stresses by permanent deformation and natural aging.

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