Thermoplastic polyester elastomer
Hytrel® 7246 is a high modulus, 570 MPa, Hytrel® grade, with nominal durometer hardness of 72D. It contains color-stable antioxidants. It can be processed by many conventional thermoplastic processing techniques like injection molding and extrusion.
Data Sheet - Hytrel® 7246 Film
|
Property |
Test Method |
Units |
Value |
|
Mechanical |
|
|
|
|
Tensile Stress |
ISO 8256 |
kJ/m2 |
300 |
|
Strain 10% |
|
|
|
|
Strain 5% |
|
|
|
|
Yield Stress |
ISO 527-1/2 |
MPa |
|
|
50mm/min |
|
|
30 |
|
Stress at Break |
ISO 527-1/2 |
MPa |
45,8 |
|
Nominal Strain at Break |
ISO 527-1/2 |
% |
|
|
50mm/min |
|
|
>50 |
|
Strain at Break |
ISO 527-1/2 |
% |
360 |
|
Yield Strain |
ISO 527-1/2 |
% |
|
|
50mm/min |
|
|
25 |
|
Tensile Modulus |
ISO 527-1/2 |
MPa |
|
|
1mm/min |
|
|
525 |
|
Tensile Creep Modulus |
ISO 899 |
MPa |
|
|
1000h |
|
|
312 |
|
1h |
|
|
360 |
|
Flexural Modulus |
ISO 178 |
MPa |
|
|
-40C |
|
|
2410 |
|
23C |
|
|
570 |
|
100C |
|
|
207 |
|
Notched Izod Impact |
ASTM D 256/A |
J/m |
|
|
-40C |
|
|
40 |
|
23C |
|
|
210 |
|
Notched Charpy Impact |
ISO 179/1eA |
kJ/m2 |
|
|
-30C |
|
|
5 |
|
23C |
|
|
30 |
|
Unnotched Charpy Impact |
ISO 179/1eU |
kJ/m2 |
|
|
-30C |
|
|
No break |
|
23C |
|
|
No break |
|
|
|
|
|
|
Property |
Test Method |
Units |
Value |
|
Thermal |
|
|
|
|
Deflection Temperature |
ISO 75-1/2 |
°C |
|
|
0,45MPa |
|
|
115 |
|
1,80MPa |
|
|
50 |
|
CLTE, Flow |
ASTM E 831 |
E-4/C |
1,7 |
|
CLTE, Transverse |
ASTM E 831 |
E-4/C |
1,7 |
|
Melting Temperature |
ISO 3146C |
°C |
|
|
10C/min |
|
|
218 |
|
Vicat Softening Temperature |
ISO 306 |
°C |
207 |
|
50N |
|
|
200 |
|
Melt Flow Rate |
ISO 1133 |
g/10 min |
|
|
240C,2,16kg |
|
|
12,5 |
|
Electrical |
|
|
|
|
Surface Receptivity |
IEC 93 |
Ohm |
1E15 |
|
Relative Permittivity |
IEC 250 |
|
|
|
23C, 1E2 Hz |
|
|
4 |
|
1E6 Hz |
|
|
3,5 |
|
Volume Resistivity |
IEC 93 |
Ohm cm |
1E15 |
|
Dissipation Factor |
IEC 250 |
E-4 |
|
|
1E2 Hz |
|
|
180 |
|
1E6 Hz |
|
|
300 |
|
CTI |
IEC 112 |
V |
600 |
|
Flammability |
|
|
|
|
Flammability at 1.6mm Nominal UL94 |
UL94 |
|
HB |
|
Limited Oxygen Index |
ISO 4589 |
% |
23 |
|
Other |
|
|
|
|
Density |
ISO 1183 |
Kg/m3 |
1260 |
|
Hardness, Durometer D |
ISO 868 |
Points |
72 |
|
Ross (pierced), 5X Cut Growth |
ASTM D 1052 |
Cycles |
0,03 E6 |
|
Initial Tear Resist., Die C |
ISO 34 |
kN/m |
200 |
|
Taber Abrasion |
ASTM D 1044 |
Mg |
|
|
CS-17 Wheel, 1kg, 1000 cycles |
|
|
13 |
|
H-18 Wheel, 1kg, 1000 cycles |
|
|
47 |
|
Humidity Absorption |
ISO 62, Similar to |
% |
0,2 |
|
Water Absorption |
ISO 62, Similar to |
% |
|
|
Equilibrium 50%RH |
|
|
0,6 |
|
Water Absorption |
ISO 62 |
% |
|
|
Immersion 24hr |
|
|
0,3 |
|
Mould Shrinkage |
ISO 2577 |
% |
|
|
Flow |
|
|
1,6 |
|
Transverse |
|
|
1,7 |
|
Processing |
|
|
|
|
Melt Temperature Range |
|
°C |
240-260 |
|
Mould Temperature Optimum |
|
°C |
45 |
|
Drying Time, Dehumidified Dryer |
|
H |
2-3 |
|
Drying Temperature |
|
°C |
110 |
Properties measured at 23°C unless otherwise stated.
Please refer to the Safety Data Sheet, general guides and/or additional information about ventilation, handling, purging, drying, etc.
The information provided in this documentation corresponds to our knowledge on the subject at the date of its publication. This information may be subject to revision as new knowledge and experience becomes available. The data provided fall within the normal range of product properties and relate only to the specific material designated; these data may not be valid for such material used in combination with any other materials or additives or in any process, unless expressly indicated otherwise. The data provided should not be used to establish specification limits nor used alone as the basis of design; they are not intended to substitute for any testing you may need to conduct to determine for yourself the suitability of a specific material for your particular purposes. Since DuPont™ cannot anticipate all variations in actual end-use conditions DuPont™ makes no warranties and assumes no liability in connection with any use of this information. Nothing in this publication is to be considered as a license to operate under or a recommendation to infringe any patent rights. CAUTION: Do not use this product in medical applications involving permanent implantation in the human body. For other medical applications see “DuPont™ Medical Caution Statement”, H-51459
