[Jewelry making - Article 00320] - Re: [Orchid] Best Bronze for jewelry making?

[Ron Charlotte]

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>     I would like to try working in bronze sheet. I have found a
>     supplier but they have a couple of different options for it. One is
>     called "phospher" bronze and the other is called "commercial"
>     bronze. Can someone tell me the difference and which is best for
>     jewelry making? 

    Phosphor bronze is Copper /Tin (~3-10%) with 1% or less phosphorus.
    It's tough, springy stuff. I still have a screwdriver made of the
    stuff from my days of working in missile magazines and explosives
    lockers. It's essentially "tool bronze". 

    "commercial" Bronze covers a bunch of alloys, most of which are
    really modified brasses that have that darker "bronze look". Several
    of them have a significant lead content. It's a casting alloy family,
    primarily. 

Ron Charlotte -- Gainesville, FL
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