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Aluminum alloy

  • US 2,572,562 A
  • Filed: 04/01/1948
  • Issued: 10/23/1951
  • Est. Priority Date: 04/01/1948
  • Status: Expired due to Term
First Claim
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1. AN ALUMINUM BASE ALLOY CHARACTERIZED BY A HIGH CREEP STRENGTH AND HIGH ELECTRICAL CONDUCTIVITY, SAID ALLOY CONTAINING 0.2 TO 1.1 PER CENT IRON, 0.2 TO 0.5 PER CENT MAGNESIUM, FROM 0.05 TO 0.15 PER CENT SILICON, BALANCE ALUMINUM EXCEPT FOR THE SMALL AMOUNTS OF IMPURITIES OTHER THAN IRON AND SILICON ORDINARILY PRESENT IN GRADES OF ALUMINUM HAVING AN ELECTRICAL CONDUCTIVITY OF AT LEAST 60 PER CENT THE CONDUCTIVITY OF PURE COPPER THE MAGNESIUM CONTENT OF THE ALLOY BEING SLIGHTLY IN EXCESS OF THAT CALCULATED AS NECESSARY TO CONVERT ALL OF THE SILICON TO MG2SI.

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