PVC (TYPE I POLYVINYL CHLORIDE)
Material Information
PVC belongs to the vinyl family and is one of the most versatile amorphous thermoplastics that are in use today. PVC is readily available in sheets, rods, and pipe. Type I PVC is a rigid PVC which is a normal impact, high corrosion resistant, material that has a smooth finish on both sides and is used where chemical attack is an important concern, unlike Type II PVC, which is a high impact material with lower chemical resistance. This low cost thermoplastic also has good tensile/flexural/mechanical strength, has low moisture absorption, is a good thermal and electrical insulator, and has been shown to be self-extinguishing in flammability tests. PVC may be bent and shaped, welded, cemented, machined, and is ideal for areas in need of extreme durability, weatherability, corrosion, and flame resistance.
Application
- Chemical processing
- High purity applications
- Water and waste water treatment
- Agriculture
- Irrigation
- Food contact applications
- Plumbing
- Corrosive resistant tanks/equipment
- Nuts, bolts, fasteners
- Pump and valve components
- Mechanical components
- Semiconductor equipment
- Vinyl siding
- Credit cards
- Window lineals
Properties
- Chemical resistance
- Good range of forming temperature
- Good electrical properties
- Low moisture absorption
- Good draw characteristics
- Easy to fabricate
- Good dimensional stability
- Good flexural strength
- Self-extinguishing
- Low impact strength
- Heavy
- Easily scratched or marred
- Low heat distortion point (may be used up to 140º F)
Physical |
Astm Test Method |
PVC |
| Density (lb/in^3) | D792 | 0.051 |
| Specific Gravity | D792 | 1.41 |
| Water Absorption @ 24 hours (%) | D570 | 0 |
Mechanical |
||
| Tensile Strength (PSI) | D638 | 7,500 |
| Tensile Modulus (PSI) | D638 | 411,000 |
| Tensile Elongation at Break (%) | D638 | – |
| Flexural Strength (PSI) | D790 | 12,800 |
| Flexural Modulus (PSI) | D790 | 481,000 |
| Compressive Strength (PSI) | D695 | – |
| Compressive Modulus (PSI) | D695 | – |
| Izod Impact (Notched), ft-lb/in | D256 | 1 |
| Rockwell Hardness | D785 | R115 |
Thermal |
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| Coefficient of Thermal Expansion, 10^-5/°F |
D696 | 6.1 |
| Heat Deflection Temperature 264 psi, ºF | D648 | 176 |
| Melting Point, °F | D3418 | – |
| Continous Service Temp (Operating), °F | – | 140 |
| Thermal Conductivity, BTU-in/hr-ft² °F | F433 | 0.9 |
| Flammability Rating | UL94 | VO |
Electrical |
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| Dielectric Strength, Short Term, (Volts/Mil) @ .125″ Thick |
D149 | 544 |
| Volume Resistivity (ohm/square) | D257 | 5.40 x 10^15 |
| Dielectric Constant at 60hz | D150 | 3.2 |
| Dissipation Factor at 60Hz | D150 | 0.0096 |
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.