complexlogo.gif (4940 bytes)

PVC (PolyVinyl Chloride) &
CPVC (Chlorinated PolyVinyl Chloride)
 

POLYVINYL CHLORIDE (PVC) PROPERTIES
PVC is the most widely used member of the vinyl family. It is most commonly used in pipe and fittings. PVC offers excellent corrosion and weather resistance. It has a high strength-to-weight ratio and is a good electrical and thermal insulator. PVC is also self-extinguishing per UL flammability tests. PVC may be used to temperatures of 140F (60C) and is readily available in sheets, rods, and tubing. PVC may be cemented, welded, machined, bent and shaped readily.

 

CHLORINATED POLYVINYL CHLORIDE (CPVC) PROPERTIES
CPVC shares most of the features and properties of its close relative, PVC. It is also readily workable, including machining, welding, and forming. Because of its excellent corrosion resistance at elevated temperatures, CPVC is ideally suited for self-supporting constructions where temperatures up to 200F (93C) are present. The ability to bend, shape, and weld CPVC enables its use in a wide variety of process applications including tanks, scrubbers, and ventilation systems. It exhibits excellent fire resistance, chemical resistance, and is readily available in sheets, rods, and tubing.


TYPICAL PROPERTIES of PVC and CPVC

ASTM or UL test Property PVC CPVC
PHYSICAL
D792 Density (lb/in)
(g/cm)
0.051
1.41
0.055
1.52
D570 Water Absorption, 24 hrs (%) 0 0.04
MECHANICAL
D638 Tensile Strength (psi) 7,500 8,200
D638 Tensile Modulus (psi) 411,000 430,000
D638 Tensile Elongation at Break (%) - 27
D790 Flexural Strength (psi) 12,800 15,000
D790 Flexural Modulus (psi) 481,000 410,000
D785 Hardness 115 (Rockwell R) 121 (Rockwell R)
D256 IZOD Notched Impact (ft-lb/in) 1.0 1.6
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./F)
6.1 3.7
D648 Heat Deflection Temp (F / C)
at 264 psi

176 / 80

217 / 103
D3418 Melting Temp (F / C) n.a. n.a.
- Max Operating Temp (F / C) 140 / 60 200 / 93
C177 Thermal Conductivity
(BTU-in/ft-hr-F)
(x 10-4 cal/cm-sec-C)

0.90
3.1

0.95
3.3
UL94 Flammability Rating V-O V-O
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8" thick 544 1250
D150 Dielectric Constant at 60 Hz 3.2 3.7
D150 Dissipation Factor at 60 Hz .0096 -
D257 Volume Resistivity (ohm-cm)at 50% RH 5.4 x 1015 3.4 x 1015

 

Products & Data Page                                                                                           PVC                                                                                                                        Home Page