Compound 7040 Data Sheet
75-duro FKM
| ASTM Method |
Property |
Avg. Value |
Min. Value |
| D412 Method A |
Tensile Strength |
2150 psi |
1500 psi |
|
Ultimate Elongation |
193% |
130% |
|
Stress at Elongation |
|
|
|
- M25 |
218 psi |
|
|
- M50 |
363 psi |
255 psi |
|
- M100 |
839 psi |
507 psi |
|
Strain Energy/ Unit
Volume at 20% elongation |
23 psi |
|
|
Calculated Shear Modulus,
G |
683 psi |
|
|
Calculated Youngs
Modulus, E |
2050 psi |
|
|
E-secant from the initial
slope |
2253 psi |
|
| D624, Die B |
Tear Strength |
282 lbf/inch |
|
| D297, 15 |
Specific Gravity |
1.88 |
|
| |
|
Max Value |
Min Value |
| D2240, Type A |
Durometer Hardness |
80 points |
70 points |
| |
|
|
|
| D395, Test B |
Compression Set |
Avg. Value |
|
|
22 hrs @ 392F |
34% |
|
|
70 hrs @ 392F |
|
|
|
336 hrs @ 392F |
|
|
ASTM D865 - Dry Heat Aging:
| Hours Aged |
Change in Tensile |
Change in Elongation |
Change in Durometer |
| 70 hrs @ 392F |
-3% |
-16% |
0 points |
| 168 hrs @ 392F |
|
|
|
| 336 hrs @ 392F |
|
|
|
| 1000 hrs @ 392F |
|
|
|
Temperature Properties and Shelf Life:
| ASTM / Other |
Description |
Value |
| D746 |
Brittle Point |
|
| D1329 |
Temp Retraction TR-10 |
-17F |
| |
Glass Transition |
-4F |
| |
Max Operating Temp |
|
| |
Shelf Life (years) |
|
Rev. 11/30/2004
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