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Zamak 2 vs. PFA

Zamak 2 and PFA belong to fundamentally different material chemistries. Zamak 2 is a metal, while PFA is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (34, 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 Zamak 2 and the bottom bar is PFA.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 6.0
300
Tensile Strength: Ultimate (UTS), MPa 360
30

Thermal Properties

Maximum Temperature: Mechanical, °C 95
260
Melting Onset (Solidus), °C 380
300
Specific Heat Capacity, J/kg-K 410
1000
Thermal Conductivity, W/m-K 110
0.25
Thermal Expansion, µm/m-K 28
120

Otherwise Unclassified Properties

Density, g/cm3 6.5
2.2

Common Calculations

Strength to Weight: Axial, points 15
3.9
Strength to Weight: Bending, points 17
10
Thermal Diffusivity, mm2/s 41
0.12