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NP(CR)
Product Description
| Performance | Brand | ||
| NP610 | NP710 | ||
| Normal performance | Hardness | 60 | 70 |
| Tensile Strength Mpa | 19 | 18 | |
| Elongation at break % | 495 | 420 | |
| Heat aging resistance | Hardness change | +6 | +7 |
| Tensile strength change rate % | 3.4 | 2.5 | |
| Rate of change in elongation at break % | -8.6 | -3.5 | |
| Resistant to ASTM 1# oil | Hardness change | +0 | +2 |
| Volume change % | -0.53 | -2.9 | |
| Resistant to ASTM 3# oil | Hardness change | -22 | -20 |
| Volume change % | +72 | +66 | |
| Compression set % | 22 | 18 | |
| Brittle temperature ℃ | -40 | -40 | |
| Features and uses | Various oil resistant seals | ||
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