The alloy, which contains \(95 \%\) aluminium and small amounts of copper, magnesium and manganese is ____

The alloy, which contains \(95 \%\) aluminium and small amounts of copper, magnesium and manganese is ____
  1. magnalium
  2. aluminium bronze
  3. invar
  4. duralumin

Solution

Duralumin constitutes: \(95 \% \mathrm{Al}\), about \(3 \% \mathrm{Cu}\), \(0.5-1 \% \mathrm{Mg}\) and \(\mathrm{l}-1.5 \% \mathrm{Mn}\).

Asked in: AP EAMCET 2020 (17 Sep Shift 2)

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