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Copyright 2002 by Roger D. Corneliussen
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Values are from Modern Plastics Encyclopedia 99.
To jump to a particular property, click on the name listed below.
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
220 to 267 C
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Contents
Glass
Transition
(C)
Tg (Amorphous)
--- C
Processing
Temperature
Range Degrees F
Extrusion
435 to 525 F for injection molding
Molding
Pressure Range ( PSI) (ksi)
4000 to 10000 psi
4 to 10 ksi
27to 67 MPa
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Contents
Compression
Ratio
1.74 to 5.5
Mold(Linear)
Shrinkage (in/in)
ASTM D955
0.009 to 0.022 in/in
Tensile
Strength at Break
ASTM D638
8200 to 8700 psi
55 to 58 MPa
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Contents
Elongation
at break (%)
ASTM D638
50 to 300 %
Tensile
Yield Strength (psi)
ASTM D638
8200 to 8700 psi
55 to 58 MPa
Compressive
Strength (psi)
Rupture or Yield
ASTM
D695
8600 to 14500 psi
57 to 97 MPa
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Contents
Flexural
Strength (psi)
Rupture or Yield
ASTM D790
12000 to 16700 psi
80 to 111 MPa
Tensile
Modulus (psi)
ASTM D638
280000 to 435000 psi
1.9 to 2.9 GPa
To go to Modulus Values,
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Modulus
Compressive
Modulus (psi)
ASTM
D695
375000 psi
2.5 GPa
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Contents
Flexural
Modulus (psi)
ASTM D790
At 73 F
330000 to 400000 psi
2.2 to 2.7 GPa
At 200 F
--- psi
--- GPa
At 250 F
--- psi
--- GPa
At 300 F
--- psi
--- GPa
Izod
Impact (ft-lb/in of notch)
ASTM D256
0.7 to 1.0 ft lb/in of notch
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Contents
Hardness
Rockwell ASTM D785
M68 to 78
--
Shore D65 ASTM
D2240/D2583
D55-65
Coefficient
of Linear Thermal Expansion
60 to 95
(10 x exp –6) in/in /C
0.000 060 to 0.000 095 in/in /C
Deflection
Temperature under flexural load (F)
ASTM D648
264 psi ---
122 to 185 F
66 psi ---
240 to 375 F
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Contents
Thermal
Conductivity
ASTM C177
4.2 to 6.9 (10 x exp –4) cal cm/sec cm2
0.00042 to 0.00069 cal cm/sec cm2
Specific
Gravity
ASTM D792
1.30 to 1.38
To go to Density /Specific Gravity Values,
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Density
Water
Absorption
(1/8 in thick specimen) (%)
ASTM D570
24 hr --- 0.08 to 0.09%
Saturation
0.4 to 0.5 %
Dielectric Strength v/mil
(1/8 in thick Specimen; short time)
420 to 550 v/mil
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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
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