The aluminium alloy of intergranular corrosion resistance

The aluminium alloy of intergranular corrosion resistance

  • CN 104,797,727 B
  • Filed: 08/22/2013
  • Issued: 11/23/2018
  • Est. Priority Date: 08/28/2012
  • Status: Active Grant
First Claim
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1. a kind of aluminium alloy, the alloying component that the aluminium alloy includes has the constituent indicated below with weight %:

  • 2.91%≤

    Mg≤

    4.5%,0.5%≤

    Mn≤

    0.8%,0.05%≤

    Cu≤

    0.30%,0.05%≤

    Cr≤

    0.30%,0.05%≤

    Zn≤

    0.9%,Fe≤

    0.40%,Si≤

    0.25%,Ti≤

    0.20%,Remaining Al and individually less than 0.05%, total amount is up to 0.15% impurity, and wherein, and following formula is suitable for the alloyIngredient Zn, Cr, Cu and Mn:

    (2.3 ×

    %Zn+1.25 ×

    %Cr+0.65 ×

    %Cu+0.05 ×

    %Mn)+2.4 >

    =%Mg.

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