|
|
|
|
NP Graphite Electrode diameter length
and Size, Appearance and Tolerance Q/YB 4088-92 |
|
unit |
Length mm
|
|
Max |
Min |
The min part
of black skin |
75 |
77 |
74
|
72 |
1000±100 |
-255
|
100 |
102 |
99 |
97 |
1200±100 |
130 |
131 |
128 |
126 |
1200±100 |
-275
|
150 |
154 |
151 |
148 |
1600±100 |
200 |
204 |
201 |
198 |
1600±100 |
250 |
256 |
252 |
249 |
(1600.1800)±100
|
300 |
307 |
303 |
300 |
(1600.1800)±100
|
350 |
357 |
353 |
350 |
(1600.1800)±100
|
400 |
408 |
404 |
401 |
(1800.2000)±100
|
450 |
459 |
455 |
452 |
(1800.2000)±100
|
500 |
510 |
506 |
503 |
(1800.2000)±100
|
|
|
| Properties of NP Graphite Electrode |
| Item |
Unit |
Nominal diameter（mm）mm
|
75-130 |
150-200 |
250-350 |
400-500 |
Electric Resistively
≤electrodes nipple
|
μΩ·m
|
8.5
7.0 |
8.5
7.0 |
9.0
7.0 |
9.0
7.0 |
Banding strength
≤electrodes nipple
|
MPa
|
11
13.5 |
11
13.5 |
9.5
13.5 |
8.5
13.5 |
Elastic meduluc
≤electrodes nipple
|
Gpa |
8.6
11.5 |
8.6
11.5 |
8.6
11.5 |
8.6
11.5 |
Bulk density
≤electrodes nipple |
g/cm3 |
1.62
1.68 |
1.58
1.67 |
1.56
1.72 |
1.56
1.72 |
Ash≤electrodes
nipple |
%
|
0.4 |
0.4 |
0.4 |
0.4 |
CTE≤electrodes
nipple
|
10-6L/℃
|
2.2
2.4 |
2.2
2.4 |
2.4
2.6 |
2.4
2.6 |
|
|
