[Jewelry making - Article 00753] - Re: [Orchid] Hot work platinum?

[nick]

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    Pure Pt is very soft, akin to pure gold. Most Pt jewellery alloys are
    (UK) 95% Pt and alloyed with a range of other elements including Pd,
    Ag, Au and Cu. Any alloy with these components will be fine, try to
    avoid alloys with Ge, Si and Ga in as they are designed for casting
    and suffer from embrittlement. 

Nick
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