[Jewelry making - Article 00830] - Re: [Orchid] Maleable bronze

[jesse brennan]

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    I guess you mean  "malleable"  (maybe not). The nicest bronze to 
    cast is one of the silicon bronzes  - Everdur (95 -88 % copper,
    1-1/2 5 to 4 % silicon , 0.25  to 1 % manganese) or Herculoy (96 5
    copper. 3.5 % silicon  0.5 %, tin). These are easy to cast
    particularly in larger very accurate shapes  using ceramic shell
    techniques with lost wax  patterns. With good techniques you won't
    need to forge them -- They can be cold worked to higher tensile
    strengths but  they are very good as cast. Forging is possible but
    as in most copper alloys the forging temperature range is narrow and
     critical. For decorative purposes ( the only legitimate  ones) it
    is great. 

    jesse 

    Berryllium copper make good tools but Berrylium is NASTY.. don't
    fool with it . 


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