Alloy and process for manufacturing rolled strip from an aluminu

Details Alloy and process for manufacturing rolled strip from an aluminu Alloy and process for manufacturing rolled strip from an aluminu

1983-10-03

1985-03-05

Rutledge, L. Dewayne

Metal treatment

Stock

Aluminum base

148439, 420542, 420543, 420544, 420546, 420547, C22C 2102

Patent

active

045029008

ABSTRACT:
This invention relates to a wrought aluminum alloy, to its use for making semifinished and finished products and to processes of improving the properties, particularly the strength properties, of semifinished and finished products made of that alloy.
A wrought aluminum alloy is proposed which contains 1.15 to 2.0% manganese, more than 1.0 and up to 2.0% silicon, 0.25 to 0.65% magnesium, 0.2 to 1.0% iron, not in excess of 0.3% copper, not in excess of 0.2% zinc, not in excess of 0.1% zirconium, not in excess of 0.1% titanium, balance aluminum and other impurities in a total not in excess of 0.2%.
In FIG. 1, the ultimate tensile stresses which can be obtained with three different combinations of cooling rate and subsequent final cold reduction are plotted as a function of the magnesium content, the prior art being represented by magnesium contents of 0.2% and less.

REFERENCES:
patent: 1797851 (1931-03-01), Bossert et al.
patent: 3306787 (1967-02-01), Dies

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