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Rubber anticorrosive lining
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Hydrogenated nitrile butadiene rubber - HNBR
This material is based on hydrogenated nitrile rubber (HNBR) and is specially designed for the production of rubber products. It is widely used in rubber product factories abroad and features high strength, high hardness, heat resistance, oil resistance, H2S resistance, acid and alkali resistance, low compression set, and good processing properties.
| Properties | Grade | ||||
| HR520 | HR620 | HR720 | HR820 | ||
| Normal Properties | Hardness | 50 | 60 | 70 | 80 |
| Tensile Strength Mpa | 26 | 28 | 27 | 29 | |
| Elongation at Break % | 365 | 321 | 274 | 22 | |
| Heat Aging Resistance | Hardness Change | +4 | +3 | +3 | +3 |
| Tensile Strength Change % | 2.5 | 5.1 | 3.6 | 0.5 | |
| Elongation at Break Change % | -6.8 | -6.3 | -5.2 | -8.1 | |
| ASTM No.1 Oil Resistance | Hardness Change | +3 | +2 | +2 | +2 |
| Volume Change % | -2.4 | -1.1 | -2.2 | -2.2 | |
| ASTM No.3 Oil Resistance | Hardness Change | -6 | -6 | -5 | -5 |
| Volume Change % | +8.6 | +7.2 | +7.5 | +6.2 | |
| Compression Set % | 22 | 20 | 20 | 23 | |
| Brittle Point ℃ | -50 | -50 | -50 | -50 | |
| Characteristics and Applications | Resistant to refrigerant A134, heat resistant, oil resistant, HS resistant, acid and alkali resistant, low compression set | ||||
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