项目
ltems |
单位
Unit |
公称直径
Nominal diameter(mm) |
150-200 |
250-350 |
400-500 |
电阻率不大于
Specific resistance
not over |
电极
Electrode |
μΩ·m |
9.0 |
9.0 |
9.0 |
接头
Nipple |
7.5 |
7.5 |
7.5 |
抗折强度不小于
Transverse strength
not below |
电极
Electrode |
MPa |
9.8 |
7.8 |
6.4 |
接头
Nipple |
13.0 |
13.0 |
13.0 |
弹性模量不大于
Elastic modulus
not over |
电极
Electrode |
GPa |
9.3 |
9.3 |
9.3 |
接头
Nipple |
14.0 |
14.0 |
14.0 |
体积强度不小于
Bulk density
not below |
电极
Electrode |
g/cm3 |
1.52 |
1.52 |
1.52 |
接头
Nipple |
1.63 |
1.68 |
1.68 |
热膨胀系数不大于
(C.T.E)
not over |
电极
Electrode |
10-6/℃ |
2.9 |
2.9 |
2.9 |
接头
Nipple |
2.7 |
2.7 |
2.7 |
灰分不大于
Ash content
not over |
% |
0.5 |
0.5 |
0.5 |