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PVDF vs. SAE-AISI 4150 Steel

PVDF and SAE-AISI 4150 steel belong to fundamentally different material chemistries. PVDF is a polymeric material, while SAE-AISI 4150 steel 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 (32, 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 PVDF and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.1
190
Elongation at Break, % 200
12 to 20
Tensile Strength: Ultimate (UTS), MPa 49
660 to 1310

Thermal Properties

Maximum Temperature: Mechanical, °C 140
420
Melting Onset (Solidus), °C 170
1420
Specific Heat Capacity, J/kg-K 1120
470
Thermal Conductivity, W/m-K 0.12
42
Thermal Expansion, µm/m-K 120
13

Otherwise Unclassified Properties

Density, g/cm3 1.8
7.8

Common Calculations

Stiffness to Weight: Axial, points 0.35
13
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 7.8
24 to 47
Strength to Weight: Bending, points 17
22 to 34
Thermal Diffusivity, mm2/s 0.061
11
Thermal Shock Resistance, points 27
19 to 39