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US 10,550,455 B2Granted
Methods of continuously casting new 6xxx aluminum alloys, and products made from the same
AssigneeArconic Inc.
InventorsTimothy A. Hosch, John M. Newman, David Allen Tomes, Jr.
Life of this patent
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Abstract
New 6xxx aluminum alloy strips having an improved combination of properties are disclosed. The new 6xxx new aluminum alloy strips are rolled to a target thickness in-line via at least a first rolling stand and a second rolling stand. In one approach, the 6xxx new aluminum alloy strips may contain 0.8 to 1.25 wt. % Si, 0.2 to 0.6 wt. % Mg, 0.5 to 1.15 wt. % Cu, 0.01 to 0.2 wt. % manganese, 0.01 to 0.2 wt. % iron; up to 0.30 wt. % Ti; up to 0.25 wt. % Zn; up to 0.15 wt. % Cr; and up to 0.18 wt. % Zr.
Claims11
A 6xxx aluminum alloy strip (“6AAS”) having a thickness of from 0.1524 to 4.064 mm;
- wherein the 6AAS consists essentially of 0.8 to 1.25 wt. % Si, 0.2 to 0.6 wt. % Mg, 0.5 to 1.15 wt. % Cu, 0.01 to 0.20 wt. % Mn, 0.01 to 0.3 wt. % Fe;
- up to 0.30 wt. % Ti;
- up to 0.25 wt. % Zn;
- up to 0.15 wt. % Cr;
- and up to 0.18 wt. % Zr, the balance being aluminum and impurities;
- wherein the 6AAS realizes an average second phase particle cluster number density of at least 4300 clusters per mm2.
3 more elements
Dependencies are inferred from the claim text.