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（一）高纯石墨型号规格及理化指标
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| 型号 |
体积密度 |
肖氏 |
电阻率 |
抗弯强度 |
抗压强度 |
平均气孔 |
热膨胀系 |
灰份 |
| (g/cm3) |
硬度 |
(Ωmm2/m) |
(MPa) |
(MPa) |
半径(Um) |
数(10-6/K) |
(%) |
| XT-15 |
1.8 |
48 |
10 |
37 |
78 |
3.2 |
4.8 |
0.1 |
| XT-17 |
1.9 |
50 |
9.5 |
42 |
86 |
2.4 |
4.4 |
0.1 |
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| （二）特种石墨材料的特性： |
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| （1）机械强度好 |
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| （2）滑动性能好 |
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| （3）耐高温 |
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| （4）耐热冲击性能好 |
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| （5）润湿性低 |
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| （6）抗腐蚀性强 |
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| （7）导热率高 |
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| （8）纯度高 |
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| （9）导电性好 |
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| （10）抗氧化 |
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