AERO PLASTICS & SUPPLY CO.
CNC  MACHINING  &  FABRICATION

PVC

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 140°F (60°C) 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 200°F (93°C) 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/in³)
(g/cm³)

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/ft²-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

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.

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