Properties 

Chlorinated Polyvinyl Chloride
/CPVC

Topics   Index

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Copyright 2002 by Roger D. Corneliussen
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From Modern Plastics Encyclopedia 99, p. B-216

Melt Flow
Melting Temperature
Glass Transition
Processing Molding Pressure
Processing Molding Temperature
Compression Ratio
Mold Shrinkage
Tensile Strength
Elongation
Tensile Yield Strength
Compressive Strength
Flexural Strength
Tensile Modulus
Flexural Modulus
Izod Impact Strength
Hardness
Deflection Temperature
Thermal Expansion
Thermal Conductivity
Specific Gravity
Dielectric Strength
Water Absorption

Note: The ASTM numbers are linked to 
their descriptions on the ASTM website.  
To go to the description, simply
click on the ASTM number

Melt Flow 
ASTM D1238
(gm/10 min)

--- gm /10 min

Melting Temperature  degrees C
Tm Crystalline
--- C

Glass Transition (C)
Tg (Amorphous)

110 to 127 C

Processing Temperature Range Degrees F
Extrusion

350 to 400 F for Compression Molding
395 to 440 F for Injection Molding
360 to 430 F for Extrusion

Molding Pressure Range ( PSI) (ksi)
15000 to 40000 psi
15 to 40 ksi
100 to 267 MPa

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Compression Ratio
1.5 to 2.8

Mold(Linear) Shrinkage (in/in)
ASTM D955
0.003 to 0.007 in/in 

Tensile Strength at Break
ASTM D638
6500 to 9000 psi
43 to 60 MPa

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Elongation at break (%)
ASTM D638
4 to 100 %

Tensile Yield Strength (psi)
ASTM D638
6000 to 8200 psi
40 to 57 MPa

Compressive Strength (psi)
Rupture or Yield
ASTM D695
9000 to 22000 psi
60 to 147 MPa

To go to Compressive Strength Values,
click on
Compressive Strength

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Flexural Strength (psi)
Rupture or Yield
ASTM D790
11500 to 17000 psi
77 to 113 MPa

Tensile Modulus (psi)
ASTM D638
328000 475000 psi
2.2 to 3.2 GPa

To go to Modulus Values,
click on
Modulus

Compressive Modulus (psi)
ASTM D695
212000  to 600000 psi
1.4 to 4.0 GPa

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Flexural Modulus (psi)
ASTM D790
At 73 F
334000 to 450000 psi
2.2 to 3.0 GPa
At 200 F
--- psi
--- GPa
At 250 F
--- psi
--- GPa
At 300 F
--- psi
--- GPa

Izod Impact (ft-lb/in of notch)
ASTM D256A

1.0 to 10.0 ft lb/in of notch

To go to Izod Values,
click on
Izod

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Hardness
Rockwell ASTM D785
 
R109 to 117
Shore D65 ASTM D2240/D2583
82 to 88

Coefficient of Linear Thermal Expansion
(10 exp-6 )in/in/C
 52 to 78 (10 x exp 6) in/in /C
0.000 052 to 0.000 078 in/in /C

Deflection Temperature under flexural load (F)
ASTM D648
264 psi ---
194 to 234 F
66 psi  ---
215 to 247 F

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Thermal Conductivity
(10 x exp 4)al cm/sec cm2 C
ASTM C177
3.3 (10 x exp 4) cal cm/sec cm2
0.00033 cal cm/sec cm2

Specific Gravity
ASTM D792
1.39 to 1.58

To go to Density /Specific Gravity Values,
click on
Density

Water Absorption
(1/8 in thick specimen) (%)
ASTM D570
24 hr --- 0.02 to 0.16 %
Saturation  --- --- %

Dielectric Strength v/mil
(1/8 in thick Specimen; short time)
600 to 625 v/mil

Topics   Index

**************************************
Copyright 2002 by Roger D. Corneliussen
No part of this transmission is to be
duplicated, in any manor, or forwarded by
electronic mail without the express written
permission of Roger D. Corneliussen
**************************************

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2/2/2002

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