buna-n
| Buna-N | |
| Common Name | Buna N, Nitrile, NBR |
| ASTM D-2000 Classification | BF, BG, BK |
| Military (MIL STD 417) | SB |
| Chemical Definition | Butadiene Acrylonitrile |
| General Characteristics | |
| Durometer Range (Shore A) | 20 - 95 |
| Tensile Range (P.S.I.) | 200 - 3000 |
| Elongation (Max. %) | 600 |
| Compression Set | Good |
| Resilience - Rebound | Good |
| Abrasion Resistance | Excellent |
| Tear Resistance | Good |
| Solvent Resistance | Good to Excellent |
| Oil Resistance | Good to Excellent |
| Low Temperature Usage (F°) | +30° to -40° |
| High Temperature Usage (F°) | to 250° |
| Aging Weather - Sunlight | Poor |
| Adhesion to Metal | Good to Excellent |
| Comment | |
Nitrile (Buna-N) is a general purpose oil resistant polymer which has good solvent, oil, water and hydraulic fluid resistance, good compression set, abrasion resistance and tensile strength. Nitrile should not be used in highly polar solvents such as acetone and MEK ozone chlorinated hydrocarbons and nitro hydrocarbons. |
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