O型密封圈类
性能数据
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类别 |
O型密封圈类(O-ring) |
胶种类型 |
NBR |
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配方编号 |
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检测项目 |
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A |
测试条件 |
常规物性 |
单位 |
测试方法 |
典型值 |
典型值 |
典型值 |
|
23±2°C |
硬度(Hardness) |
邵氏A(Shore A) |
GB/T531 |
60 |
70 |
80 |
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拉伸强度(Tensile strength) |
兆帕(Mpa) |
GB/T528 |
14 |
15.6 |
17 |
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扯断伸长率(Elongation at Break) |
% |
421 |
375 |
239 |
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M300%定伸应力(300%Modulus) |
兆帕(Mpa) |
9.3 |
13.8 |
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比重(Specific Gravity) |
g/cm3 |
GB/T533 |
1.21 |
1.23 |
1.26 |
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B |
(100°Cx70Hx25%) |
压缩永久变形(Compression set) |
% |
GB/T7759 |
16 |
14 |
16 |
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C |
热空气老化(Heat aging resistance ) |
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100°Cx70H |
硬度变化(Change in hardness) |
邵氏A(Shore A) |
GB/T3512 |
9 |
6 |
5 |
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拉伸强度变化率 (Change in Tensile strength) |
% |
14 |
7 |
11 |
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扯断伸长率变化率 (Change in Elongation at Break) |
% |
-23 |
-19 |
-24 |
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D |
耐油性能测试(Fluid resistance ) 901#Oil |
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100°Cx70H |
硬度变化(Change in hardness) |
邵氏A(Shore A) |
GB/T1690 |
8 |
6 |
6 |
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拉伸强度变化率 (Change in Tensile strength) |
% |
9 |
11 |
5 |
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扯断伸长率变化率 (Change in Elongation at Break) |
% |
-26 |
-21 |
-27 |
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体积变化(Change in volume) |
% |
-13 |
-8 |
-6 |
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E |
耐油性能测试(Fluid resistance ) 901#Oil |
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100°Cx70H |
硬度变化(Change in hardness) |
邵氏A(Shore A) |
GB/T1690 |
3 |
-5 |
-6 |
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拉伸强度变化率 (Change in Tensile strength) |
% |
6 |
11 |
-8 |
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扯断伸长率变化率 (Change in Elongation at Break) |
% |
-24 |
-17 |
-19 |
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体积变化(Change in volume) |
% |
4 |
6 |
7 |
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