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Pewter wire in a 1934 Rolls
A relation of mine is working on the dashboard of a 1934 RR and has asked me to supply tiny 1.1mm square wire of a soft grey metal.
I'm a jeweller amd work in a variety of alloys, including tin and pewter. From a sample of this wire I guess it is likely to be pewter or some other tin-based alloy, and it's now developed a fairly hard oxide coating on three of its sides.
I tested a small piece of it, comparing it with a same-size piece of Britannia Pewter, a lead-free alloy, and the sample from the Rolls melted slightly earlier than my piece of BP, or at what would be considered a similar temp. It could be pure tin (liquidus 232degC), or a tin-based pewter (~295).
Can anyone here tell me more about this wire, what it is and what's required of it?
A relation of mine is working on the dashboard of a 1934 RR and has asked me to supply tiny 1.1mm square wire of a soft grey metal.
I'm a jeweller amd work in a variety of alloys, including tin and pewter. From a sample of this wire I guess it is likely to be pewter or some other tin-based alloy, and it's now developed a fairly hard oxide coating on three of its sides.
I tested a small piece of it, comparing it with a same-size piece of Britannia Pewter, a lead-free alloy, and the sample from the Rolls melted slightly earlier than my piece of BP, or at what would be considered a similar temp. It could be pure tin (liquidus 232degC), or a tin-based pewter (~295).
Can anyone here tell me more about this wire, what it is and what's required of it?