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PVC-P vs. Solder Alloy 191

PVC-P and solder alloy 191 belong to fundamentally different material chemistries. PVC-P is a polymeric material, while solder alloy 191 is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 15 material properties with values for both materials. Properties with values for just one material (19, 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 PVC-P and the bottom bar is solder alloy 191.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
19
Elongation at Break, % 180
32
Poisson's Ratio 0.39
0.43
Tensile Strength: Ultimate (UTS), MPa 16
29

Thermal Properties

Melting Onset (Solidus), °C 190
300
Specific Heat Capacity, J/kg-K 1400
130
Thermal Conductivity, W/m-K 0.17
24
Thermal Expansion, µm/m-K 160
29

Otherwise Unclassified Properties

Density, g/cm3 1.4
11

Common Calculations

Stiffness to Weight: Axial, points 0.57
0.93
Stiffness to Weight: Bending, points 28
8.0
Strength to Weight: Axial, points 3.2
0.72
Strength to Weight: Bending, points 10
1.9
Thermal Diffusivity, mm2/s 0.090
16
Thermal Shock Resistance, points 4.9
3.9