Goldanalytix GOLDSCREENPEN, Instruction Manual

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23. A2. Overview of Conductance of Common Alloys of Jewellery Metals
Precious metals
electr.
conductivity
[MS/m]
Density
[g/cm³]
Platinum 999 9.1 21.45
Palladium 999 9.3 11.99
Osmium 10.9 22.59
Ruthenium about 14.1 12.37
Rhodium (sintered) 18.5 12.38
Iridium about 19.7 22.56
Foreign metals and
alloys
electr.
conductivity
[MS/m]
Density
[g/cm³]
Copper (pure) 58.0 8.96
Copper alloys 41-57
Depends on the alloy
Aluminium (pure) 36.5
2.7
Brass 13-33
about 8.5
Magnesium 23
1.74
Molybdenum 19
10.2
Aluminium alloys 15.9-30.5
Depends on alloy
Tungsten (pure) about 18.8
19.3
Tungsten alloys 20-28
Depends on alloy
Zinc 17
7.14
Tin 7.9
7.3
Chromium 7.8
7.19
Tantalum 7.6
16.6
Lead 4.8
11.34
Nickel silver 3.2-5.7
about 8.1 – 8.7
Antimony 2.4
6.68
Tungsten (sintered) <2
about 19.3
Titanium 0.5-2.5
4.45
Bismuth 0.9
9.8
Iron Ferromagnetic
7.87
Nickel Ferromagnetic
8.9
Cobalt Ferromagnetic
8.9