PVC (TYPE I POLYVINYL CHLORIDE)

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

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

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.