High extrudability, high corrosion resistant aluminum-manganese-

Details High extrudability, high corrosion resistant aluminum-manganese- High extrudability, high corrosion resistant aluminum-manganese-

1992-04-03

1994-02-15

Dean, R.

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148689, 148695, 148415, 148437, 420537, 420538, 420551, 420553, C22F 104, C22C 2104

Patent

active

052863166

ABSTRACT:
An aluminum-based alloy composition having improved corrosion resistance and high extrudability consists essentially of about 0.1-0.5% by weight of manganese, about 0.05-0.12% by weight of silicon, about 0.10-0.20% by weight of titanium, about 0.15-0.25% by weight of iron and the balance aluminum, wherein the aluminum alloy is essentially copper free. The inventive alloy is useful in automotive applications, in particular, heat exchanger tubing and finstock, and foil packaging. The process provided by the invention uses a high extrusion ratio and produces a product having high corrosion resistance.

REFERENCES:
patent: Re18552 (1932-08-01), Taylor et al.
patent: 4499050 (1985-02-01), Tong
patent: 4649087 (1987-03-01), Scott et al.
patent: 4828794 (1989-05-01), Scott et al.
patent: 4851192 (1989-07-01), Baba et al.

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