It is divided into UHP, HP and RP Graphite electrodes according to the properties, which are ‚Widely used in the industry of ferrous, nonferrous and silicon, phosphorus smelt industry etc.
Graphite Electrodes
Graphite Electrodes 2
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Properties of Graphite Electrodes
| Unit | ||||||
| UHP | HP | RP | ||||
| 300-600mm | 650-800mm | 300-800mm | 300-800mm | |||
| Typical Value | Typical Value | Typical Value | Typical Value | |||
| Resistivity | Electrode | 4. 8-5. 8 | 4. 6-5. 8 | 5. 8-6. 6 | 7.8-8.8 | |
| Nipple | 3. 8-4. 5 | 3. 8-4. 5 | 4. 2-5. 0 | 5.0-6.5 | ||
| Modulus of rupture | Electrode | MPa | 10. 0-14. 0 | 10. 0-14. 0 | 10. 0-13. 0 | 7.0-12.0 |
| Nipple | 20. 0-26. 0 | 20. 0-26. 0 | 18.0-22.0 | 15. 0-20. 0 | ||
| Young’ s modulus | Electrode | GPa | 9.0-13.0 | 10. 0-14. 0 | 8. 0-12. 0 | 7.0-9.3 |
| Nipple | 15. 0-18. 0 | 15. 0-18. 0 | 14.0-16.0 | 12.0-14.0 | ||
| Bulk Density | Electrode | g/cm3 | 1. 68-1. 74 | 1.70-1.74 | 1. 62-1. 66 | 1. 53-1. 56 |
| Nipple | 1. 77-1. 82 | 1. 78-1. 84 | 1. 74-1. 80 | 1. 70-1. 74 | ||
| CTE(100-600◦C) | Electrode | ◦C | 1.1-1.4 | 1.1-1.4 | 1. 6-1. 9 | 2. 2-2. 6 |
| Nipple | 0. 9-1. 2 | 0. 9-1. 2 | 1. 1-1. 4 | 2. 0-2. 5 | ||
| Ash | % | 0. 3 | 0. 3 | 0.3 | 0.5 | |
Physical Dimension of Electrodes
|
Nominal Dimeter |
Actual I Dimeter |
Nominal length and Tolerance |
|||||||||||
|
Max. |
Min. |
Min. Crust Diameter |
1500 |
1800 |
2100 |
2400 |
2700 |
||||||
|
Standard |
Short |
Standard |
Short |
Standard |
Short |
Standard |
Short |
Standard |
Short |
||||
|
150 |
154 |
149 |
146 |
±100 |
-255 |
±100 |
-275 |
||||||
|
200 |
205 |
200 |
197 |
||||||||||
|
250 |
256 |
251 |
248 |
±100 |
-275 |
||||||||
|
300 |
307 |
302 |
299 |
||||||||||
|
350 |
357 |
352 |
349 |
±125 |
-275 |
||||||||
|
400 |
409 |
403 |
400 |
||||||||||
|
450 |
460 |
454 |
451 |
+200 -150 |
-300 |
||||||||
|
500 |
511 |
505 |
502 |
||||||||||
|
550 |
562 |
556 |
553 |
||||||||||
|
600 |
613 |
607 |
604 |
||||||||||
|
650 |
663 |
657 |
654 |
||||||||||
|
700 |
714 |
708 |
705 |
||||||||||
|
750 |
765 |
759 |
756 |
||||||||||
|
800 |
816 |
810 |
807 |
||||||||||
*Note Short Length Electrode should be no more than 15% 1n each delivery.
Thread Detail of Electrode and Nipple
Graph of 4T nipple, Nipple socket
Graph of 3T nipple, Nipple socket
Size of Nipple and Nipple socket ((type T4)
|
Nominal Diameter |
Nipple Type |
Nipple socket average diameter |
Nipple largest diameter |
Nipple length |
Nipple socket depth |
Buckle length |
| d4 | d1 | l1 | l2 | l3 | ||
|
800 |
432T4L |
428. 64 |
431. 80 |
635. 00 |
323.50 |
319.50 |
|
750 |
406T4L |
403. 24 |
406.40 |
609. 60 |
310. 80 |
306.80 |
|
750 |
406T4N |
403. 24 |
406.40 |
584.20 |
298.10 |
294. 10 |
|
700 |
374T4L |
371. 49 |
374.65 |
558. 80 |
285. 40 |
281.40 |
|
700 |
374T4N |
371. 49 |
374. 65 |
457.20 |
234. 60 |
230. 60 |
|
650 |
355T4L |
355. 44 |
35S.60 |
558. 80 |
285. 40 |
281.40 |
|
650 |
355T4N |
355. 44 |
358.60 |
457.20 |
234.60 |
230. 60 |
|
600 |
317T4L |
314. 34 |
317.50 |
457.20 |
234. 60 |
230. 60 |
|
600 |
317T4N |
314. 34 |
317,50 |
355. 60 |
183.80 |
179.80 |
|
550 |
298T4L |
295. 29 |
298.45 |
457.20 |
234. 60 |
230. 60 |
|
550 |
298T4N |
295. 29 |
298.45 |
3.55.60 |
183.80 |
179.80 |
|
500 |
269T4L |
266. 72 |
269. 88 |
457.20 |
234.60 |
230. 60 |
|
500 |
269T4N |
266. 72 |
269.88 |
355. 60 |
183. 80 |
179.80 |
|
450 |
241T4L |
238. 14 |
241. 30 |
355. 60 |
183.80 |
179.80 |
|
450 |
241T4N |
238. 14 |
241.30 |
304. 80 |
158.40 |
154.40 |
|
400 |
222T4L |
219. 09 |
222.25 |
355. 60 |
183.80 |
179.80 |
|
400 |
222T4N |
219. 09 |
222. 25 |
304.80 |
158.40 |
154.40 |
|
350 |
203T4L |
200. 04 |
203.20 |
304.80 |
158.40 |
154.40 |
|
350 |
203T4N |
200. 04 |
203.20 |
254.00 |
133.00 |
129.00 |
|
300 |
177T4N |
174. 64 |
177. 80 |
215. 90 |
114. 00 |
110. 00 |
Size of Nipple and Nipple socket (type T3)
|
Nominal Diameter |
Nipple Type |
Nipple socket average diameter |
Nipple largest diameter |
Nipple length |
Nipple socket depth |
Buckle length |
|
550 |
298T3L |
294.24 |
298. 45 |
457. 2 |
234,6 |
230. 6 |
|
500 |
273T3L |
268. 84 |
273.05 |
457. 2 |
234,6 |
230.6 |
|
500 |
273T3N |
268.84 |
273. 05 |
355. 6 |
183.8 |
179.8 |
|
400/450 |
241T3L |
237.09 |
241. 3 |
355. 6 |
183.8 |
179.8 |
|
400/450 |
241T3N |
237. 09 |
241. 3 |
338. 7 |
175.35 |
171. 35 |
|
350/400 |
215T3L |
211. 69 |
215.9 |
355. 6 |
183.8 |
179.8 |
|
350/400 |
215T3N |
211. 69 |
215.9 |
304. 8 |
158.4 |
154.4 |
|
300 |
177T3N |
172.95 |
177. 16 |
270. 9 |
141. 45 |
137. 45 |