Rubber Sealing Ring
Characteristic：
Rubber materials can generally be divided into the following categories: fluororubber (FKM); Nitrile rubber (NBR); Hydrogenated nitrile rubber (HNBR); Silicone rubber (VMQ); Ethylene propylene diene monomer (EPDM). Please refer to the table of physical properties of materials :
Technical Parameters
Physical Properties Table of Rubber Material
|
Materia Physical Properties |
FKM |
NBR |
HNBR |
VMQ |
EPDM |
|
Shore Hardness |
65°-90° |
50°-70° |
50°-70° |
40°-70° |
50°-70° |
|
Tensile Strength Mpa |
﹥12.5 |
﹥14.5 |
﹥18 |
﹥5.5 |
﹥12.4 |
|
Elongation at Break % |
﹥140 |
﹥280 |
﹥250 |
﹥220 |
﹥250 |
|
Permanent Set after Break |
5 |
|
|
|
|
|
Cold Resistance |
-25° |
-20° |
-40° |
-60° |
-55° |
|
Heat Resistance |
240° |
120° |
150° |
250° |
150° |
|
|
With good heat resistance, cold resistance, chemical resistance, ozone resistance, oil resistance, fire resistance and chemical corrosion resistance. | With good oil resistance, deformation resistance, chemical resistance, water resistance, etc. | With excellent oil resistance, ozone resistance, weather resistance, wear resistance, chemical resistance, water resistance, etc. | With good resistance of low temperature resistance, aging , ozone chemicals, deformation and weather. | With good ozone resistance, weather resistance, chemical resistance, water resistance, aging resistance, acid resistance, water vapor resistance, etc. |
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