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PVC-P vs. AWS BNi-1a

PVC-P and AWS BNi-1a belong to fundamentally different material chemistries. PVC-P is a polymeric material, while AWS BNi-1a is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (23, 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 AWS BNi-1a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
180
Poisson's Ratio 0.39
0.3
Tensile Strength: Ultimate (UTS), MPa 16
450

Thermal Properties

Melting Onset (Solidus), °C 190
980
Specific Heat Capacity, J/kg-K 1400
500
Thermal Expansion, µm/m-K 160
12

Otherwise Unclassified Properties

Density, g/cm3 1.4
8.0

Common Calculations

Stiffness to Weight: Axial, points 0.57
13
Stiffness to Weight: Bending, points 28
24
Strength to Weight: Axial, points 3.2
16
Strength to Weight: Bending, points 10
16
Thermal Shock Resistance, points 4.9
15