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Ertalyte
PET-P |
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Units |
ASTM
Test Method |
Polyethylene-terephalate |
MECHANICAL |
1 |
Strength
to Weight Ratio |
ksi |
- |
|
2 |
Specific
Gravity @73 F |
- |
D792 |
1.41 |
3 |
Tensile
Strength @73 F, (ult)/(yld) |
psi |
D638 |
12400
(ult) |
4 |
Tensile
Modulus of Elasticity @ 73 F |
psi |
D638 |
460000 |
5 |
Tensile
Elongation at Break @ 73 F |
% |
D638 |
20 |
6 |
Flexural
Strength @ 73 F |
psi |
D790 |
18000 |
7 |
Flexural
Modulus of Elasticity @ 73 F |
psi |
D790 |
490000 |
8 |
Shear
Strength @ 73 F |
psi |
D732 |
8000 |
9 |
Compressive
Strength, (% Deformation) @73 F |
psi |
D695 |
15000
(10) |
10 |
Compressive
Modulus of Elasticity @73 F |
psi |
D695 |
420000 |
11 |
Hardness,
Rockwell, Scale as noted @73 F |
- |
D785 |
M93
(R125) |
12 |
Hardness, Durometer,
Shore D @73 F |
- |
D2240 |
D87 |
13 |
Izod
Impact, (Notched) @73 F |
ft-lb/in
of notch |
D256
TypeA |
0.5 |
14 |
Coefficient
of Friction, (Dry vs. Steel) Dynamic |
- |
- |
0.20 |
15 |
Limiting
PV, (with 4 to 1 factor of safety applied) |
psi-ft/min |
- |
3160 |
THERMAL |
16 |
Coefficient
of Linear Thermal Expansion @73 F |
in/in/F |
E-831
(TMA) |
3.3E-05 |
17 |
Heat
Deflection Temperature @ 264 psi |
F |
D648 |
240 |
18 |
Tg-Glass
transition temperature, (Amorphous) |
F |
D3418 |
- |
19 |
Melting
Point, (VS=Vicat Softening Temp.) |
F |
D3418 |
491 |
20 |
Continuous
Service Temperature in Air, (Max.) |
F |
- |
210 |
21 |
Thermal
Conductivity |
BTU-in/hr-ft2-F |
- |
2.0 |
ELECTRICAL |
22 |
Dielectric
Strength, Short Term |
Volts/mil |
D149 |
385 |
23 |
Volume
Resistivity |
ohm-cm |
D257 |
5.5E+14 |
24 |
Dielectric
Constant @ 10E6 Hz |
- |
D150 |
- |
25 |
Dissipation
Factor @ 10E6 Hz |
- |
D150 |
- |
26 |
Flammability @
3.1 mm unless noted |
- |
UL94 |
HB |
H2O |
27 |
Water
Absorbtion, Immersion, 24 Hrs |
%
by wt. |
D570(7) |
0.07 |
28 |
Water
Absorbtion, Saturation |
%
by wt. |
D570(7) |
0.90 |
