AluminiumBronze

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= Kinds of Copper alloys *

Composition

  • Fe: 3.5 - 5.5 %
  • Al : 12.5-13.5 %
  • Mn: 0-2 %
  • Cu : rest
  • Melting point
    • Liquidus - 1051 C
    • Solidus - 1047 C
  • Density : 7.2 g/cm3

Recipes

For 500 cm3 / 3600 g

  • Fe : 4% : 144 g
  • Al: 13 % : 468 g
  • Cu : 83% : 2988


For 400 cm3 / 2880 g

  • Fe : 4% : 115 g
  • Al: 13 % : 374 g
  • Cu : 83% : 2391 g

Preparation protocol

  • This is not yet tested : treat as hypothesis
  • As we will be using the 500ml graphite crucible for the first time, preheat first to 200 - 300 C, make sure it is stable and dry


Order to actions

  1. Fe, in as fine as possible form in the crucible
  2. Al
  3. Borax
  4. Wait for it to melt. We expect Iron to dissolve in molten Al
  5. Stir, check for solid Fe
  6. Add Cu
  7. More borax if needed
  8. heat up to 1200 C, ax the oven can do
  9. Pour in stailess steel cupcake forms, to form ingots small enough to fit in the crucible