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Unfilled PEI vs. C76200 Nickel Silver

Unfilled PEI and C76200 nickel silver belong to fundamentally different material chemistries. Unfilled PEI is a polymeric material, while C76200 nickel silver is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (30, 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 unfilled PEI and the bottom bar is C76200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.4
120
Tensile Strength: Ultimate (UTS), MPa 110
390 to 790

Thermal Properties

Maximum Temperature: Mechanical, °C 170
170
Specific Heat Capacity, J/kg-K 1220
390
Thermal Conductivity, W/m-K 0.18
45
Thermal Expansion, µm/m-K 53
19

Otherwise Unclassified Properties

Density, g/cm3 1.3
8.2

Common Calculations

Stiffness to Weight: Axial, points 1.5
7.8
Stiffness to Weight: Bending, points 39
20
Strength to Weight: Axial, points 24
13 to 27
Strength to Weight: Bending, points 40
14 to 23
Thermal Diffusivity, mm2/s 0.11
14
Thermal Shock Resistance, points 44
13 to 26