Compound 7346 Data Sheet
75-duro HNBR
| ASTM Method |
Property |
Avg. Value |
Min. Value |
| D412 Method A |
Tensile Strength |
2600 psi |
2400 psi |
|
Ultimate Elongation |
200% |
150% |
|
Stress at Elongation |
|
|
|
- M25 |
250 psi |
|
|
- M50 |
325 psi |
300 psi |
|
- M100 |
550 psi |
510 psi |
|
Strain Energy/ Unit
Volume at 20% elongation |
35 psi |
|
|
Calculated Shear Modulus,
G |
480 psi |
|
|
Calculated Youngs
Modulus, E |
1450 psi |
|
|
E-secant from the initial
slope |
1390 psi |
|
| D624, Die B |
Tear Strength |
|
|
| D297, 15 |
Specific Gravity |
1.19 |
|
| |
|
Max Value |
Min Value |
| D2240, Type A |
Durometer Hardness |
75 points |
73 points |
| |
|
|
|
| D395, Test B |
Compression Set |
Avg. Value |
|
|
22 hrs @ 302F |
|
|
|
70 hrs @ 302F |
25% |
|
|
336 hrs @ 302F |
|
|
ASTM D865 - Dry Heat Aging:
| Hours Aged |
Change in Tensile |
Change in Elongation |
Change in Durometer |
| 70 hrs @ 302F |
-12% |
-21% |
10 points |
| 168 hrs @ 302F |
|
|
|
| 336 hrs @ 302F |
|
|
|
| 1000 hrs @ 302F |
|
|
|
Temperature Properties and Shelf Life:
| ASTM / Other |
Description |
Value |
| D746 |
Brittle Point |
|
| D1329 |
Temp Retraction TR-10 |
-31F |
| |
Glass Transition |
-35F |
| |
Max Operating Temp |
300F |
| |
Shelf Life (years) |
10 |
Rev. 2/4/2021
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