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85-silver 15-nickel vs. PTFE

85-silver 15-nickel and PTFE belong to fundamentally different material chemistries. 85-silver 15-nickel is a metal, while PTFE is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 6 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 85-silver 15-nickel and the bottom bar is PTFE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 10
2.1 to 2.3
Melting Onset (Solidus), °C 960
330 to 340
Strength to Weight: Axial, points 7.1 to 13
1.7 to 3.2
Strength to Weight: Bending, points 8.9 to 13
5.7 to 8.7
Tensile Strength: Ultimate (UTS), MPa 260 to 470
13 to 25
Thermal Expansion, µm/m-K 18
110 to 120