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US 2016/0237531 A1Published application
Lower wing skin metal with improved damage tolerance properties
AssigneeConstellium Issoire
InventorBERNARD BES
Life of this patent
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Abstract
The invention relates to a rolled product with state T351, having thickness of between 15 and 50 mm, made from aluminium alloy having the following composition, in % by weight, Cu: 3.85-4.15; Mg: 0.95-1.25; Mn: 0.45-0.57; Zr: 0.09-0.16; Ti: 0.005-0.1; Fe: <0.070; Si: <0.060; with Cu+Mg≦5.15; other lesser elements 0.05 each and less than 0.15 in total, the remainder being aluminium.
Claims12
A rolled product in the T351 temper, having a thickness between 15 and 50 mm, made of aluminum alloy of composition, as a percentage by weight,
- Cu:
- 3.85-4.15
- Mg:
- 0.95-1.25
- Mn:
- 0.45-0.57
- Zr:
- 0.09-0.16
- Ti:
- 0.005-0.1
- Fe:
- <0.070
- Si:
- <0.060
- with Cu+Mg 5≦5.15
- other elements <0.05 each and less than 0.15 in total, the remainder being aluminum.
13 more elements
Dependencies are inferred from the claim text.