Metallurgy / Copper

[Martin Moser]

There are data available for the medical needles from Montbellet, here are the results of analyses of the various needles:

Cu 91,6, Sn 8,4
Cu 85,58, Sn 12,03, Pb 2,39
Cu 94,62, Sn 5,38
S 12,72, Cu 81,66, Sn 5,62 (S probably due to corrosion)
Cu 88,13, Sn 10,13, Pb 1,74
Cu 95,74, Sn 4,76
Cu 90,34, Sn 9,66

(Source: Michel Feugere, Ernst Künzl, Ursula Weisser: Die Starnadeln von Montbellet (Saone-et-Loire) - published in, hm, have to look this up, I'll get back ...)

Those are from one set of needles, possibly from the same manufacturer, although that is not sure. Composition varies quite a bit ...