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Acrylonitrile Butadiene Rubber (NBR) > > |
| Abbreviation |
NBR |
| Common Name |
Buna N, Nitrile, NBR |
| ASTM D-2000 classification |
BF, BG, BK |
| Military(Mil-Std417) |
SB |
| Chemical Definition |
Butadiene Acrylonitrile |
| General Characteristics |
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| Durometer-Range (Shore A) |
20-95 |
| Tensile Range (P.S.I) |
200-3000 |
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| Elongation (Max.%) |
600 |
| Compression Set |
Good |
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| Resilience-Rebound |
Good |
| Abrasion Resistance |
Excellent |
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| Tear Resistance |
Good |
| Solvent Resistance |
Good to Excellent |
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| Oil Resistance |
Good to Excellent |
| Low Temperature Usage (°F) |
-30° to -40° |
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| High Temperature Usage (°F) |
to 250° |
| Aging Weather-Sunlight |
Poor |
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| Adhesion To Metals |
Good to Excellent |
Feature
Advantage:
- Has good solvent, oil, water and hydraulic fluid resistance.
- Good compression set, abrasion resistance and tensile strength.
Disadvantage:
- Not recommended for using in highly polar solvents such as acetone, and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons.
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