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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.

Graphite Electrodes
Graphite Electrodes 2
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Properties of Graphite Electrodes

Properties
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

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.

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

d4d1l1l2l3

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