GRAPHITE ELECTRODES (2)
Allowed Current Carrying Load of Electrode of Regular power:

Nominal Diameter mm

Current carrying load A

Current density A/cm2

75

1000~1400

22~31

100

1500~2400

19~30

130

2200~3400

17~26

150

3000~4500

16~25

200

5000~6900

15~21

250

7000~10000

14~20

300

10000~13000

14~18

350

13500~18000

14~18

400

18000~23500

14~18

450

22000~27000

13~17

500

25000~32000

13~16

550

30000~42000

13~18

600

40000~53000

14~19


Current-carrying Capacities of High Power Graphite Electrode:

Nominal Diameter mm

Current carrying load A

Current density A/cm2

300
350
400
450
500
550
600

13000~17400
17400~24000
21000~31000
25000~40000
30000~48000
44000~58000
52000~67000

17~24
17~24
16~24
15~24
15~24
18~24
18~24


Current-carrying Capacities of Ultra High Power Graphite Electrode:
Nominal Diameter mm Current carrying load A Current density A/cm2
400 25000~40000 19~30
450 32000~45000 19~27
500 38000~55000 18~27
550 48000~66000 20~28
600 55000~76000 19~27

Current-carrying Capacities of Impregnated (High Density) Graphite Electrode:

Nominal Diameter mm

Current carrying load A

Current density A/cm2

75

1050~1450

23~32

100

1700~2500

22~31

130

2500~3700

19~28

150

3300~4800

18~27

200

6000~8200

18~25

250

8500~11500

17~23

300

11400~15800

16~22

350

15400~22000

16~22

400

19200~28700

15~22

450

23700~33300

14~21

500

27000~40000

14~20

Dimension of cylindrical Nipple

Dim

Nipple mm

Socket mm

Pitch

D

d

L

d2

l

D1

d1

H

a

b

c

75

100

130

150

200

41.20

66.70

69.80

88.90

122.20

0

-0.5

33.80

59.30

62.40

81.50

114.80

0

-0.50

103

135

153

169

203

0

-1

32

56

59

78

112

0

-2

6

42.50

68.00

71.10

90.20

123.5

0.5

0

35.10

60.60

63.70

82.80

116.1

0.5

0

53

69

78

86

103

10

4

8.47

2.37

2.82

250

300

350

400

152.40

184.20

215.90

244.50

141.50

173.30

205.00

233.60

228

254

280

305

139

170

202

230

0

-3

10

154.10

185.90

217.60

246.20

143.20

175.00

206.70

235.30

116

129

142

155

12.7

3.67

4.23

450

500

274.30

296.00

0

-0.7

263.40

285.10

0

-0.7

340

375

0

-2

260

280

276.00

297.70

0.7

0

265.10

286.80

0.7

0

173

190


Dimension of Tapered Nipple:

Electrode Diameter

Nipple mm

Socket mm

Pitch

D

L

d2

l

d1

H

250

300

350

400

450

500

155.58

177.17

215.90

241.30

273.05

298.45

0

-0.50

220.10

270.90

304.80

338.60

355.60

372.50

0

-1

103.80

116.90

150.00

169.80

198.70

221.30

0

-3

10

147.14

168.73

207.47

232.87

264.62

290.02

+0.50

0

113.05

138.45

155.40

172.30

180.80

189.25

7

0

8.47

75

100

130

150

200

250

300

350

400

450

500

46.04

69.85

79.38

92.08

122.24

152.40

177.80

203.20

222.25

241.30

269.88

0

-0.50

76.20

101.60

127.00

139.70

177.80

190.50

215.90

254.00

304.80

304.80

355.60

0

-1

20.80

40.30

45.60

56.20

80.00

108.00

129.20

148.20

158.80

177.90

198.00

0

-3

6

39.72

63.53

73.06

85.76

115.92

146.08

171.48

196.88

215.93

234.98

263.56

0.50

0

41.40

53.80

66.50

72.85

91.90

101.30

114.00

133.00

158.40

158.40

183.80

7

0

6.35


Specifications Tolerance:

Diameter mm

Length mm

Nominal Diameter

Max

Min

Min of blacking

Standard

Length

Short diameter length

75
100
130

77
102
131

74
99
128

72
97
126

1000
1200
1200

+50-70

-225

150
200

154
204

151
201

148
198

1600
1600

+100

-275

250
300
350

256
307
357

252
303
353

249
300
350

1600,
1800

400
450
500

408
459
510

404
455
506

401
452
503

(1600),
1800,
2000

550
600

561
612

577
608

2000~2500

+100


Average Weight of Each Electrode (kg):

Nominal Diameter      mm

75

100

150

200

250

300

350

400

Electrode

9

17

47

77

133

189

239

314

Tapered Nipple

0.18

0.40

1.0

2.36

5.11

8.08

14.00

18.8

(1)      (2)
CARBON PALTA GRAPHIT