Aluminum brass

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In technical terms, aluminum brass is a rather uncommon term for high-strength and partly seawater-resistant copper - zinc - cast and wrought alloys with 55-66% copper, up to 7% aluminum , up to 4.5% iron and 5% manganese .

The term “ special brass ” is used far more frequently , which then also includes alloys that add other property-determining elements to the copper-zinc base. In addition to the elements iron and manganese already mentioned, lead , nickel and silicon are also found as alloy components.

Because of their aluminum content, which is susceptible to oxidation at the usual melt temperatures in the region of 900 ° C , the alloys require careful melt management and melt treatment . Pay attention to any oxides that may form when potting .

Aluminum bronze is technically correct as bronze is a zinc-free copper-tin casting alloy with an aluminum content.

literature

  • Series of publications by the DKI, Berlin, number L5 "Copper-zinc alloys".
  • Foundry Lexicon. 17th edition, Schiele and Schön, Berlin, ISBN 3-7949-0606-3 .