6XXX aluminum alloy for extrusion with excellent crash performance and high yield strength and method of production thereof
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United States of America Patent
Stats
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Sep 3, 2024
Grant Date -
Aug 5, 2021
app pub date -
Apr 18, 2019
filing date -
Apr 24, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to an extruded product made of 6xxx aluminium alloy comprising 0.40-0.80 wt. % Si, 0.40-0.80 wt. % Mg, 0.40-0.70 wt. % Cu, up to 0.4 wt. % Fe, up to 0.30 wt. % Mn, up to 0.2 wt. % Cr, up to 0.2 wt. % V, up to 0.14 wt. % Zr, up to 0.1 wt. % Ti, up to 0.05 wt. % each impurity and total 0.15 wt. %, remainder aluminum, wherein the ratio Mg/Sifree is between 0.8 and 1.2 where Sifree is calculated according to the equation Sifree=Si−0.3*(Mn+Fe) where Si, Mn and Fe correspond to the content in weight % of Si, Mn and Fe of said 6xxx aluminum alloy and to the corresponding extruded product particularly suitable with a tensile yield strength higher than 280 MPa, and excellent crash properties. The invention also relates to the manufacturing process to obtain such extruded product.
First Claim
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International Classification(s)
- 2019 Application Filing Year
- C22F Class
- 301 Applications Filed
- 153 Patents Issued To-Date
- 50.84 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- C22F Class
- 0 % this patent is cited more than
- 1 Age
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