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Material Data Sheets - Chart 2

 

Property

Units Test
Method
ASTM
Delrin
500CL
TFE
Fluoro-
carbon
Kynar®
PVDF
Cast
Nylon
Nylon
MD
Coefficient of Linear
Thermal Expression
in./in./°F  D-696   6.8 x 10(-5)
(85-140°F)
 5.5-7.5 x 10(-5) 4.4-7.9 x 10(-5)   5.0 x 10(-5)  3.5 x 10(-5)
Deformation under Load
(122°F, 2,000 psi)
%  D-621  0.7  3-7  -- 0.5 - 1.0   0.5 - 2.5
Deflection Temperature,
264 psi
°F D-648   255  100-140  176-194 200-425   200-470
66 psi
°F  D-648  338  --   234-284  400-425 400-490 
Melting Point °F  D-789   347 621 +/- 9  312-334   430 +/- 10  482-500
Continuous Service Temperature in Air (max) °F   --  180  500 --  200-225  180-200 
Dielectric Strength,
Short Time
volts/mil.   D-149  40
(125mils.)
 500-650  --  500-600(2) 300-400(2) 
Volume Resistivity ohm-cm.  D-257   5 x 10(14)  > 10(17) 2 x 10(14)  --  25 x 10(13) 
Dielectric Constant, 60 Hz --   D-150 3.5  2.0 - 2.1   8.40  3.7  -
10(3) Hz
--   D-150 3.5  2.0 - 2.1  7.46 3.7   --
10(6) Hz
 --  D-150 3.5  2.0 - 2.1  6.10  3.7   --

Property Units Test
Method
ASTM
Delrin
500CL
TFE
Fluoro-
carbon
Kynar®
PVDF
Cast
Nylon
Nylon
MD
Water Absorption,
Immersion (24 hours)
%  D-570  .27 0.00 - 0.05   .04 - .06  0.6 - 1.2 0.5 - 1.4 
Water Absoption, Saturation %  D-570  1.00  --  --  5.5 - 6.5 6 - 8 
Acids, Weak, 73°F -- --  A A A A  A
Acids, Strong, 73°F  -- --  U A A U  U
Alkalies, Weak, 73°F  -- --  A A A  A
Strong, 73°F  -- --  U A A A A
Hydrocarbons, Aromatic, 73°F  --  --  A A A A A
Hydrocarbons, Aliphatic, 73°F  -- -- A A  A  A
Ketones, 73°F  --  -- A A -- A A
Ethers, 73°F  --  --  A A -- A A
Esters, 73°F  --  -- A A -- A A
Alcohols, 73°F  --   -- A A  A A A
Inorganic Salt
Solutions, 73°F
 --   --  -- A  --  A  A 
Continuous Sunlight, 73°F  --  --  --  A  --  L L

Key 

A = Acceptable Service (1) ASTM B-1457 used for thin specimens
L = Limited Service (2) .080" thick
U = Unacceptable (3) 122 F, 4,000 psi
NR = Not Rated (4) ASTM D-1708
(1/8" thick specimen @ .05"/min.)
-- = Must Check Concentration (5) 150 F, 4,000 psi
(6) .040" thick
(7) Specimen 1/8" thick,
2" diameter

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