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Made of good asbestos Fibre rubber with steel wire inserted and compound heating and compression molding it (can be coated with graphite on the surface).
The other size is optional or according to the requirements of customers. |
GB/T539-1995 | ||||||
Item |
KJXB450 |
KJXB350 |
KJXB250 |
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sile strength MPa |
21.0 |
16.0 |
11.0 |
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Aging Coefficient |
0.9 |
|||||
Burning Loss % |
27 |
29 |
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Density g/cm3 |
1.6 - 2.0 |
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Compressibility % |
12 5 |
|||||
Rebound degree |
42 |
40 |
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Pliability |
No Crack |
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Stress-relaxation |
50 |
|||||
Steam Airtightness |
with the temperature of 440-450 and the pressure of 13-14MPa,Keep for 30 min without puncture |
with the temperature of 340-350 and the pressure of 9-10MPa,Keep for 30 min without puncture |
with the temperature of 240-250 and the pressure of 7-8MPa,Keep for 30 min without puncture |