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PVC-P vs. S38815 Stainless Steel

PVC-P and S38815 stainless steel belong to fundamentally different material chemistries. PVC-P is a polymeric material, while S38815 stainless 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 (26, 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 S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
190
Elongation at Break, % 180
34
Poisson's Ratio 0.39
0.29
Tensile Strength: Ultimate (UTS), MPa 16
610

Thermal Properties

Maximum Temperature: Corrosion, °C 70
400
Maximum Temperature: Mechanical, °C 75
860
Melting Onset (Solidus), °C 190
1310
Specific Heat Capacity, J/kg-K 1400
500
Thermal Expansion, µm/m-K 160
15

Otherwise Unclassified Properties

Density, g/cm3 1.4
7.5

Common Calculations

Stiffness to Weight: Axial, points 0.57
14
Stiffness to Weight: Bending, points 28
25
Strength to Weight: Axial, points 3.2
22
Strength to Weight: Bending, points 10
21
Thermal Shock Resistance, points 4.9
15