Graphite electrodes
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.
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 |
|
|
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.
Graph of 4T nipple, Nipple socket
Graph of 3T nipple, Nipple socket
|
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 |
|
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 |
