| About |
|---|
| Greene FKM 761 is a Fluoroelastomer product. It is available in North America.&& |
| Product Description | |
|---|---|
| Generic | 氟橡胶 |
| Material Status | Commercial: Active |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.80 | g/cm³ | ASTM D297 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | ASTM D412 | ||
| fracture | 16.0 | MPa | ASTM D412 |
| 50% strain | 2.48 | MPa | ASTM D412 |
| 100% strain | 6.89 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 190 | % | ASTM D412 |
| Compression deformation | ASTM D395 | ||
| 24℃，70 hr | 7.0 | % | ASTM D395 |
| 175℃，166 hr | 24 | % | ASTM D395 |
| 200℃，22 hr | 12 | % | ASTM D395 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| The rate of change in tensile strength in air | |||
| 276℃，70 hr | -25 | % | ASTM D573 |
| The rate of change in ultimate elongation in air | |||
| 276℃，70 hr | -8.0 | % | ASTM D573 |
| The rate of change in hardness of a hardness tester in the air | |||
| Shore A, 276 ℃, 70 hr | -1.0 | ASTM D573 | |
| The rate of change in tensile strength | ASTM D471 | ||
| 24 ℃, 70 hr, in reference fuel B | -12 | % | ASTM D471 |
| 200℃，70 hr，in Reference Oil 300 | -12 | % | ASTM D471 |
| Change rate of ultimate elongation | ASTM D471 | ||
| 24 ℃, 70 hr, in reference fuel B | 2.0 | % | ASTM D471 |
| 200℃，70 hr，in Reference Oil 300 | 13 | % | ASTM D471 |
| The rate of change in Shore hardness | ASTM D471 | ||
| Support A, 24 ℃, 70 hr, in reference oil B | -2.0 | ASTM D471 | |
| Support A, 200 ℃, 70 hr, in reference oil 300 | -6.0 | ASTM D471 | |
| Quality change rate | |||
| 276 ℃, 70 hours in air | -8.0 | % | ASTM D471 |
| Volume change | ASTM D471 | ||
| 24 ℃, 70 hr, in reference fuel B | 2.3 | % | ASTM D471 |
| 200℃，70 hr，in Reference Oil 300 | 15 | % | ASTM D471 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD | 2.2E-4 | 1/℃ | ASTM E228 |
| Operating temperature | -40 to 232 | ℃ |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Rubber Classification | FKM | ASTM D1418 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 77 | ASTM D2240 | |
| Rockwell hardness | |||
| M-level | 75 | ASTM D785 | |
| friction coefficient | ASTM D1894 | ||
| With oneself – dynamic | 1.1 | ASTM D1894 | |
| With oneself – static | 1.2 | ASTM D1894 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method C |
| 3. 25% Deflection |
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