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Graphite electrode

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Detail

GRAPHITE ELECTRODE

1. Technical properties:

Item

Unit

Impregnated Electrode

High Power  Electrode

Ultra-high Power Electrode

Diameter
75-400mm
(3-16 inch)

Diameter
300-500mm
(12-20inch)

Diameter
350-500mm
(14-20)inch

Resistivity
Max

Electrode

μΩm

7.5

6.5

6.5

Nipple

7.0

6.0

5.5

Bending strength
Min

Electrode

Mpa

10.0

10.0

10.5

Nipple

13.0

14.0

16.0

Elastic modulous
Max

Electrode

Gpa

12.0

12.0

14.0

Nipple

14.0

16.0

18.0

Ash content
Max

Electrode

%

0.3

0.3

0.3

Nipple

Bulk density
Min

Electrode

G/cm3

1.62

1.63

1.65

Nipple

1.70

1.72

1.72

CTE
Max

Electrode

10-6/℃

2.7

2.2

1.5

Nipple

2.5

2.0

1.4

Remarks: Ash content and CTE are only for reference.

2. Specifications & Allowance of Graphite Electrode:

Diameter (mm)

Length (mm)

Nominal Diameter

Actual Diameter
(mm)

Nominal Length
(mm)

Allowance
(mm)

mm

inch

Max

Min

75

3

78

73

1000
1200

+50
-75

100

4

103

98

150

6

154

149

1600

±100

200

8

205

200

1600

225

9

230

225

1800

±100

250

10

256

251

1800

±100

300

12

307

302

1800

350

14

357

352

1800

400

16

409

403

1800

±100

450

18

460

454

1800

500

20

511

505

2000

 

3. Suggested Current-Carrying Capacities of Electrode:

Nominal diameter

 Suggested current carrying capacities (A)

mm

inch

IP

HP

UHP

75

3

1300-2000

 

 

100

4

1800-3000

 

 

150

6

4000-5000

 

 

200

8

4800-9000

 

 

250

10

8000-12000

 

 

300

12

11000-16000

13000-17400

 

350

14

15000-22000

17400-24000

22000-28000

400

16

20000-28000

24000-32000

28000-35000

450

18

24000-34000

32000-40000

35000-45000

500

20

28000-42000

40000-48000

45000-55000

 

 

4. Dimensions of tapered 3TPI nipples:

Diameter

Nipple Diameter
(mm)

Nipple length
(mm)

mm

inch

225

9

139.70

203.20

250

10

155.57

220.00

300

12

177.16

270.90

350

14

215.90

304.80

400

16

241.30

338.70

450

18

273.05

355.60

500

20

298.45

372.60

 

 

5. Dimensions of tapered 4TPI nipples:

Diameter

Nipple Diameter
(mm)

Nipple Length
(mm)

mm

inch

75

3

46.04

76.20

100

4

69.85

101.60

150

6

92.08

139.70

200

8

122.24

177.80

225

9

139.70

177.80

250

10

152.40

190.50

300

12

177.80

215.90

350

14

203.20

254.00

400

16

222.25

304.80

450

18

241.30

304.80

500

20

269.88

355.60

 

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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