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Graphite Electrode Data sheet

Graphite Electrode Data sheet

  • 2019-08-02 11:46:23
Graphite Electrode Data sheet(standard)

This is a standard Graphite Electrode Data Sheet

  

 

GRAPHITE ELECTRODE Data sheet

Physical and chemical indexes

 

 

 

 

 

Item

 

 

 

 

Unit

GRAPHITE ELECTRODE

 

RP

HP

UHP

φ300-φ800m

m

φ300-φ800m

m

φ300-φ500m

m

φ550-φ800m

m

Typical Value

Typical Value

Typical Value

Typical Value

 

Resistivity

Electrode

 

μΩm

7.0-10.0

5.8-6.6

4.8-5.8

4.6-5.8

Nipple

4.0-4.5

3.5-4.0

3.5-4.0

3.5-4.0

 

Modulus of Rupture

Electrode

 

Mpa

8.0-10.0

10.0-13.0

10.0-14.0

10.0-14.0

Nipple

19.0-22.0

20.0-23.0

20.0-24.0

22.0-26.0

 

Young's Modul us

Electrode

 

GPa

7.0-9.3

8.0-12.0

9.0-13.0

10.0-14.0

Nipple

12.0-14.0

14.0-16.0

15.0-18.0

16.0-19.0

 

Bulk Density

Electrode

 

g/cm3

1.53-1.56

1.64-1.68

1.68-1.74

1.68-1.74

Nipple

1.70-1.74

1.75-1.80

1.78-1.82

1.78-1.84

 

CTE (100-600

)

Electrode

 

10-6/

2.2-2.6

1.6-1.9

1.1-1.4

1.1-1.4

Nipple

2.0-2.5

1.1-1.4

0.9-1.2

0.9-1.2

Ash

%

0.5

0.3

0.3

0.3


     Current Load and Current Density

 

 

Diameter

RP

HP

UHP

 

mm

Current Load (A)

Current Density(

A/cm³)

Current Load (A)

Current Density(A/c

m³)

Current Load (A)

Current Density(A/c

m³)

200

5000-6900

15-21

5500-9000

18-25

 

 

225

6100-8600

15-21

6500-10000

18-25

 

 

250

7000-10000

14-20

8000-13000

18-25

8100-12200

20-30

300

10000-13000

14-18

13000-17400

17-24

15000-22000

20-30

350

13500-18000

14-18

17400-24000

17-24

20000-30000

20-30

400

18000-23500

14-18

21000-31000

16-24

25000-40000

19-30

450

22000-27000

13-17

25000-40000

15-24

32000-45000

19-27

500

25000-32000

13-16

30000-48000

15-24

38000-55000

18-27

550

32000-40000

13-16

37000-57000

15-23

42000-66000

17-26

600

38000-47000

13-16

44000-67000

15-23

49000-76000

17-26

 

 

 

Nipple Size and Nipple Range(4 Buckle) Unit:mm

 

 

 

Nominal Diameter

 

 

Nipple Type

Nipple scoket average

diameter

Nipple largest diameter

 

Nipple length

 

Nipple scoket-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

352.44

355.60

558.80

285.40

281.40

650

355T4N

352.44

355.60

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

355.60

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

 

Remarks:(1) Nipple average diameter(d2) equal to nipple socket average diameter(d4).

(2) Nipple socket smallest diameter equal to nipple socket average diameter(d4) deduct 3.16mm.

(3) Special nipple size shall be negotiated by supplier and customer.

 

Nipple Size and Nipple Range(3 Buckle) Unit:mm

 

 

 

Nominal Diameter

 

Nipple Type

Nipple scoket average

diameter

Nipple largest diameter

 

Nipple length

Nipple scoket-de pth

 

Buckle length

D4

D1

L1

L2

L3

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

175.30

171.30

350/400

215T3L

211.69

215.9

355.6

183.3

179.8

350/400

2153T3N

211.69

215.9

304.8

158.4

154.4

300

177T3N

172.95

177.16

270.9

141.50

137.50

 

Remarks: (1) Nipple average diameter(d2) equal to nipple socket average diameter(d4).

(2) Nipple socket smallest diameter equal to nipple socket average diameter(d4) deduct 4.22mm

(3) Special nipple size shall be negotiated by supplier and customer.

 

                      Deviation of Nipple and Nipple Socket Unit:mm

 

 

Item

Deviation(3buckle)

Deviation(4buckle)

Max

Min

Max

Min

Nipple Length

0

-1

0

-1

Nipple largest

diameter

0

-0.4

0

-0.4

Nipple smallest

diameter

0

-0.4

0

-0.4

Nipple clearance

10

 

10

 


Nipple socket

smallest diameter

0.4

0

0.4

0

Nipple depth

10

0

10

0

 

              Electrode Size And Size Range Unit:mm

 

Nominal Diameter

Actual Diameter

Nominal length and Tolerane

Max

Min

Min. Crust Dia mete

r

1500

1800

2100

2400

2700

Stan dard

Short

Stan dard

Short

Stan dard

Short

Stan dard

Short

Stan dard

Short

150

154

149

146

±100

-225

±100

-275

 

 

 

 

 

 

200

205

200

197

 

 

 

 

 

 

250

256

251

248

±125

-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% in each delivery.

 

Electrode And Nipple Connecting Moment mm

Dia(mm)

150

200

250

300

350

400

450

500

550

600

650

700

750

800

Moment(NM)

140

200

450

650

820

1000

1600

2600

3600

4200

5000

6000

7500

9800

 

 

Using Guide

Being hard and brittle,artificial GRAPHITE ELECTRODE shall be specially handled.Proper operation may reduce the consumption and cost.

 

1. Use special hoist tools to hoist GRAPHITE ELECTRODE.It is strictly forbidden to prize electrode ends up with crowbar.It must be handled with great care during transportation to avoid damage.

2. GRAPHITE ELECTRODE must be kept away from being moistened or wetted by rain,snow and water,and must be kept dry.It must be dried in the furnace before use.The drying temperature in


the furnace shall be less then 100℃.The drying period shall be not less than 48 hours.

3. Not to be stored up near clay,slag etc.to avoid surface pollution and increasing resistivity. 4.Carefully checking before connection,make sure that the socked and nipple thread is not damaged,nipple pitch plug is in.Nipple screw shall not be damaged during lifting.

5. Blow the nipple and socket threads with compressed air.

6. GRAPHITE ELECTRODE must be connected contacted closely and straightly.Use moment spanner for connecting electrode with suitable force.The gap between electrodes shall less than 0.4mm.

7. The holding device must hold the electrode tightly,good contact and no arc.Otherwise,the connecting area will get red and oxidized and thin,leading breakage.

8. Threaded portion of nipple socket shall not be damaged during hoisting by metal plug.Hoisting plug shall spin out and keep nipple socket clean.

9. Lifting device of electrode must move stably when moving electrode.carefully check the  position of furnace cover after being repaired.To seal the cover with refractory to prevent up electrode from being oxidized by fire.

10. The holding device of electrode shall hold the electrode beyond the socket area.

11. For charging the furnace,the large scrap should be put at the bottom,the small one on the top,Charge material with low electric conductivity shall not been put on the top.In the course of melting,un-melted material shall be taken in time to avoid electrode breaking by falling material.

 

Backed by over 20 years of experience of manufacturing, marketing and distributing premium carbon metallurgical products and solutions worldwide, Carbo Graphite is committed to providing a range of high quality, innovative, cost-effective products, solutions and services.

Client Comment

2020-01-04 15:11:51:

UHP700 Graphite electrodes are used for the recycling of steel in the electric arc furnace industry, so called “mini-mills”. They are also used in the refining of steel as well as in the non ferrous industries, where smelting processes are in use.

2019-12-31 12:50:34:

Graphite rods commonly used in high-temperature vacuum furnace electric body, the maximum temperature of up to 3000 ℃, easy to oxidation at high temperatures, in addition to vacuum, but only in a neutral atmosphere or reductive atmosphere. Its thermal exp.

2019-12-30 18:20:55:

As an ISO 9001:2008 certified manufacturer, it possesses sophisticated manufacturing and inspection equipment, provides 100% inspection and reporting on each product delivered to its customers so you can be assured that 100% of your parts are manufactured.

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