High strength aluminum extrusion alloy

Details High strength aluminum extrusion alloy High strength aluminum extrusion alloy

1977-04-04

1978-09-12

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148 2, 148 115A, 148 127A, 148 32, 148 325, C22C 2116

Patent

active

041134729

ABSTRACT:
High strength extrudable and readily weldable aluminum base alloys are prepared comprising 0.9-1.5% magnesium, 0.4-0.8% silicon, and 0.9-1.5% copper, which may also include optional elements such as manganese, iron, and chromium, wherein the silicon content must not exceed the sum of 0.58 .times. magnesium content plus 0.25 .times. the manganese plus iron contents and the copper content must not exceed the sum of magnesium plus silicon contents. Such alloys display improved retention of strength properties after being subjected to welding conditions.

REFERENCES:
patent: 3418177 (1968-12-01), Pryor
patent: 3935007 (1976-01-01), Baba et al.
patent: 4000007 (1976-12-01), Develay et al.

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