PVC Duct
| PVC Duct Physical Properties | ||
|---|---|---|
| GENERAL | Value | Test Method |
| Cell Classification | 12454 | ASTM D1784 |
| Maximum Service Temp. | 140°F | |
| Color | Dark Gray | |
| Specific Gravity, (g/cu.cm @ 73°F) | 1.40 +/-.02 | ASTM D792 |
| Water Absorption % increase 24 hrs @ 25°C | 0.05 | ASTM D570 |
| Hardness, Rockwell | 110 - 120 | ASTM D785 |
| Poisson's Ratio @ 73°F | 0.410 | |
| Hazen-Williams Factor | C =150 | |
| MECHANICAL | ||
| Tensile Strength, psi @ 73°F | 7,450 | ASTM D638 |
| Tensile Modulus of Elasticity, psi @ 73°F | 420,000 | ASTM D638 |
| Flexural Strength, psi @ 73°F | 14,450 | ASTM D790 |
| Compressive Strength, psi @ 73°F | 9,600 | ASTM D695 |
| Izod Impact, notched ft-lb/in @ 73°F | 0.75 | ASTM D256 |
| THERMAL | ||
| Coefficient of Linear Expansion (in/in/°F) | 2.9 x 10-5 | ASTM D696 |
| Coefficient of Thermal Conductivity (Cal.)(cm)/(cm2)(Sec.)(°C) BTU/in/hr/ft.2/°F Watt/m/°K |
3.5 x 10-4 1.02 0.147 |
ASTM C177 |
| Heat Deflection Temperature Under Load (264psi, annealed) | 170 | ASTM D648 |
| Specific Heat, Cal./°C/gm | 0.25 | ASTM D2766 |
| ELECTRICAL | ||
| Dielectric Strength, volts/mil | 1,413 | ASTM D149 |
| Dielectric Constant, 60Hz, 30°F | 3.70 | ASTM D150 |
| Volume Resistivity, ohm/cm @ 95°C | 1.2 x 1012 | ASTM D257 |
| GF Harvel PVC Pipe is non-electrolytic | ||
| FIRE PERFORMANCE | ||
| Flammability Rating | V-0 | UL-94 |
| Flame Spread Index | <10 | |
| Flame Spread | 0-25 | ULC |
| Smoke Generation | 80-225 | ULC |
| Flash Ignition Temp. | 730°F | |
| Average Time of Burning (sec.) | <5 | ASTM D635 |
| Average Extent of Burning (mm) | <10 | |
| Burning Rate (in/min) | Self Extinguishing | |
| Softening Starts (approx.) | 250°F | |
| Material Becomes Viscous | 350°F | |
| Material Carbonizes | 425°F | |