Corrosion resistant aluminum alloy
OwnerLars Auran, Trond Furu +1inventors
InventorsLars Auran, Trond Furu, Ole Daaland
Life of this patent
Estimating the term…
Abstract
An aluminium-based alloy consisting of 0.05-1.00% by weight of iron, 0.05-0.60% by weight of silicon, less than 0.50% by weight of copper, up to 1.20% by weight of manganese, 0.02 to 0.20% by weight of zirconium, up to 0.50% by weight of chromium, 0.02 to 1.00% by weight of zinc, 0.02 to 0.20% by weight of titanium, 0.02 to 0.20% by weight of vanadium, up to 2.00% by weight of magnesium, up to 0.10% by weight of antimony, up to 0.02% by weight of incidental impurities and the balance aluminium, the total amount of Ti plus Cr plus V being less than 0.3% by weight and the amount of V being lower than the amount of Cr, said aluminium-based alloy exhibiting high corrosion resistance and high extradability.
Claims21
An aluminium-based alloy consisting of
- 0.05-1.00% by weight of iron,
- 0.05-0.60% by weight of silicon,
- less than 0.50% by weight of copper,
- up to 1.20% by weight of manganese,
- 0.02 to 0.20% by weight of zirconium,
- up to 0.50% by weight of chromium,
- 0.02 to 1.00% by weight of zinc,
- 0.02 to 0.20% by weight of titanium,
- 0.02 to 0.20% by weight of vanadium,
- up to 2.00% by weight of magnesium,
- up to 0.10% by weight of antimony,
- up to 0.02% by weight of incidental impurities
- and the balance aluminium, the total amount of Ti plus Cr plus V being less than 0.3% by weight and the amount of V being lower than the amount of Cr, said aluminium-based alloy exhibiting high corrosion resistance and high extrudability.
The alloy of any one of the preceding claims, wherein said silicon content ranges between 0.05-0.20% by weight.
The alloy of any one of the preceding claims, wherein said silicon content ranges between 0.05-0.15% by weight.
The alloy of any one of the preceding claims wherein said copper content ranges below 0.05% by weight.
The alloy of any one of the preceding claims wherein said zirconium content ranges between 0.02 and 0.18% by weight.
The alloy of any one of the preceding claims wherein said zinc content ranges between 0.02 and 0.50% by weight.
The alloy of any one of the preceding claims wherein said titanium content ranges between 0.02 and 0.15% by weight.
The alloy of any one of the preceding claims wherein said vanadium content ranges between 0.02 and 0.12% by weight.
The alloy of any one of the preceding claims wherein said manganese content ranges between 0.05 and 0.30% by weight.
Dependencies are inferred from the claim text.