CPVC (CHLORINATED POLYVINYL CHLORIDE)
Material Information
CPVC belongs to the vinyl family of materials. Vinyls are typically used in pipes and fittings because they offer excellent corrosion and weather resistance, as well as having a high strength to weight ratio. They are also good electrical and thermal insulators. CPVC is produced when PVC undergoes chlorination. This gives CPVC many of the same properties as PVC but provides a higher heat distortion temperature. This makes it ideal for applications that have aggressive high temperature processing that also require the excellent corrosion resistance and mechanical properties of PVC. Overall, CPVC offers improved fire and chemical resistance, and is capable of being used for a wide variety of applications due to its ability to bend, shape, and weld. It is available in sheet, rod, and tubing.
Application
- Corrosive resistant tanks and equipment
- Nuts, bolts, fasteners
- Pump and valve components
- Fume scrubbers
- Mechanical components
- Chemical processing
- Plating
- Paper industry
- Water and waste water treatment
- Hot and cold water plumbing
- Fire sprinkler piping
Properties
- Excellent chemical resistance
- Excellent retention of physical properties at higher temperatures
- Weather resistant
- High heat distortion temperature
- Self extinguishing
- Low flame and smoke characteristics
- Weldable and Machinable
Physical |
Astm Test Method |
CPVC |
| Density (lb/in^3) | D792 | 0.055 |
| Specific Gravity | D792 | 1.52 |
| Water Absorption @ 24 hours (%) | D570 | 0.04 |
Mechanical |
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| Tensile Strength (PSI) | D638 | 8,200 |
| Tensile Modulus (PSI) | D638 | 430,000 |
| Tensile Elongation at Break (%) | D638 | 27 |
| Flexural Strength (PSI) | D790 | 15,000 |
| Flexural Modulus (PSI) | D790 | 410,000 |
| Compressive Strength (PSI) | D695 | – |
| Compressive Modulus (PSI) | D695 | – |
| Izod Impact (Notched), ft-lb/in | D256 | 1.6 |
| Rockwell Hardness | D785 | R121 |
Thermal |
||
| Coefficient of Thermal Expansion, 10^-5/°F |
D696 | 3.7 |
| Heat Deflection Temperature 264 psi, ºF | D648 | 217 |
| Melting Point, °F | D3418 | – |
| Continous Service Temp (Operating), °F | – | 200 |
| Thermal Conductivity, BTU-in/hr-ft² °F | F433 | 0.095 |
| Flammability Rating | UL94 | VO |
Electrical |
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| Dielectric Strength, Short Term, (Volts/Mil) @ .125″ Thick |
D149 | 1250 |
| Volume Resistivity (ohm/square) | D257 | 3.4 x 10^15 |
| Dielectric Constant at 60hz | D150 | 3.7 |
| Dissipation Factor at 60Hz | D150 | – |
NOTE:
The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.