|
Item |
Unit |
Nominal diameter (mm) |
||||||
|
YB/T4088-2000 |
Inner quality standard |
|||||||
|
150-300 |
350-500 |
200-300 |
350-500 |
550-600 |
||||
|
Specific Resistance |
Electrode |
μΩm |
10.5 max |
10.5 max |
8.0 max |
9.0 max |
9.5 max |
|
|
Nipple |
8.5 max |
8.5 max |
6.0 max |
6.5 max |
7.0 max |
|||
|
Bending Strength |
Electrode |
MPa |
9.8 min |
6.4 min |
10.0 min |
8.0 min |
8.0 min |
|
|
Nipple |
13.0 min |
13.0 min |
14.0 min |
14.0 min |
14.0 min |
|||
|
Elactic Modulus |
Electrode |
GPa |
9.3 max |
9.3 max |
10.3 max |
10.3 max |
10.3 max |
|
|
Nipple |
14.0 max |
14.0 max |
14.0 max |
14.0 max |
14.0 max |
|||
|
Bulk Density |
Electrode |
g/cm3 |
1.52 min |
1.52 min |
1.58 min |
1.60 min |
1.60 min |
|
|
Nipple |
1.68 min |
1.68 min |
1.70 min |
1.70 min |
1.70 min |
|||
|
C.T.E. |
Electrode |
1 x 10-6/℃ |
2.9 max |
2.9 max |
2.8 max |
2.8 max |
2.8 max |
|
|
Nipple |
2.7 max |
2.8 max |
2.8 max |
2.8 max |
2.8 max |
|||
|
Ash |
% |
0.5 max |
0.5 max |
0.4 max |
0.4 max |
0.4 max |
||
