Aluminum alloy for heat exchangers

Details Aluminum alloy for heat exchangers Aluminum alloy for heat exchangers

1993-07-16

1994-04-12

Wyszomierski, George

Alloys or metallic compositions

Aluminum base

Magnesium containing

420547, 420548, 420550, C22C 2100

Patent

active

053023420

ABSTRACT:
An aluminum alloy for heat exchangers, the alloy, comprising a base compostion selected from a group consisting of Al-Mg-Si composition containing 0.1 to 0.8 wt % of Mg, 0.2 to 1.0 wt % of Si and 0.3 to 1.5 wt % of Mn; pure-Al composition; Al-Mg composition containing 0.05 to 1.0 wt % of Mg; and a Al-Zn composition containing 0.05 to 2.0 wt % of Zn. The alloy further comprises 0.01 to 0.3 wt % of Fe and/or 0.01 to 0.3 wt % of Ni, wherein the balance are aluminum of purity of 99.9% or higher and unavoidable impurities contained therein, and content of Cu as one of the impurities is controlled to be 0.05 wt % or less.

REFERENCES:
patent: 3697260 (1972-10-01), Hunsicker
patent: 3859059 (1975-01-01), Anthony et al.
patent: 4072542 (1978-02-01), Murakado et al.
patent: 4257854 (1981-03-01), Daenen et al.
patent: 4845543 (1989-04-01), Okikawa et al.
patent: 4943492 (1990-07-01), Holroyd et al.

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