Compound 7344 Data Sheet
90-duro HNBR
| ASTM Method |
Property |
Avg. Value |
Min. Value |
| D412 Method A |
Tensile Strength |
3940 psi |
3790 psi |
|
Ultimate Elongation |
370% |
330% |
|
Stress at Elongation |
|
|
|
- M25 |
590 psi |
|
|
- M50 |
790 psi |
770 psi |
|
- M100 |
1420 psi |
1360 psi |
|
Strain Energy/ Unit
Volume at 20% elongation |
79 psi |
|
|
Calculated Shear Modulus,
G |
1490 psi |
|
|
Calculated Youngs
Modulus, E |
4470 psi |
|
|
E-secant from the initial
slope |
4260 psi |
|
| D624, Die B |
Tear Strength |
520 lbf/inch |
|
| D297, 15 |
Specific Gravity |
1.18 |
|
| |
|
Max Value |
Min Value |
| D2240, Type A |
Durometer Hardness |
94 points |
86 points |
| |
|
|
|
| D395, Test B |
Compression Set |
Avg. Value |
|
|
22 hrs @ 212F |
45% |
|
|
70 hrs @ 212F |
55% |
|
|
336 hrs @ 212F |
69% |
|
ASTM D865 - Dry Heat Aging:
| Hours Aged |
Change in Tensile |
Change in Elongation |
Change in Durometer |
| 70 hrs @ 212F |
-7% |
-25% |
0 points |
| 168 hrs @ 212F |
1% |
-9% |
3 points |
| 336 hrs @ 212F |
4.7% |
-9.9% |
3 points |
| 1000 hrs @ 212F |
10.3% |
-21% |
3 points |
Temperature Properties and Shelf Life:
| ASTM / Other |
Description |
Value |
| D746 |
Brittle Point |
|
| D1329 |
Temp Retraction TR-10 |
|
| |
Glass Transition |
-13F |
| |
Max Operating Temp |
300F |
| |
Shelf Life (years) |
10 |
Rev. 11/25/2003
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