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CPVC Schedule 40 Value Pipe Physical Properties


CPVC (Cell Classification 23447) conforming to ASTM D1784 has physical properties are 73°F (23°C) similar to those of PVC and chemical resistance similar to or generally better than that of PVC. The design stress of CPVC is also 2,000 psi at 73° (23°C). The maximum service temperature is 200°F (93°C) under pressure with occasional exposure to boiling water (212°F, 100°C). CPVC has proved to be an excellent piping material for hot corrosive liquids, hot and cold water distribution and similar applications above the temperature range of PVC.


CPVC (standard)

ASTM Standards

Cell classification



Specific gravity


D 792

Tensile strength. Psi at 73°F


D 638

Modulus of elasticity tensile, psi at 73°F


D 638

Flexural strength, psi


D 790

Izod impact, ft lbs/in at 73°F, notched


D 256

Compressive Strength, psi


D 695

Poisson’s ratio



Working Stress, psi at 73°F



Coefficient of thermal expansion, in/in/°F(x10-5)


D 696

Linear expansion, in /10°F per 100’ of pipe

0.44 – 0.46


Maximum operating temperature under pressure

200°F (93°C)


Deflection temperature under load, °F at 66 psi


D 648

Deflection temperature under load, °F at 264 psi


D 648

Thermal conductivity, BTU in/hr ft2 °F


C 177

Burning rate

Self extinguishing

D 635

Burning Class



Flash ignition, °F



Limited oxygen index (%)


D 2863-70

Water absorption, %, (24 hrs at 73°F)


D 570

* Properties listed in this table represent general material properties and should be used as a guideline only.
** Underwriters Laboratory standard

Title: CPVC Schedule 40 Value Pipe Physical Properties
Description: Physical, Mechanical, Electrical and Thermal Typical Properties.
Published: 8/4/2009
Last Edited: 5/4/2012
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