factory low price China 2020 Hot Sale Ultra High Power UHP Graphite Electrode

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keep on to improve, to make sure solution good quality in line with market and shopper standard requirements. Our business has a top quality assurance program are actually established for factory low price China 2020 Hot Sale Ultra High Power UHP Graphite Electrode, Our skilled technological team might be wholeheartedly at your service. We sincerely welcome you to definitely stop by our web site and business and send out us your inquiry. keep on to improve, to make sure solution good quality ...


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keep on to improve, to make sure solution good quality in line with market and shopper standard requirements. Our business has a top quality assurance program are actually established for factory low price China 2020 Hot Sale Ultra High Power UHP Graphite Electrode, Our skilled technological team might be wholeheartedly at your service. We sincerely welcome you to definitely stop by our web site and business and send out us your inquiry.
keep on to improve, to make sure solution good quality in line with market and shopper standard requirements. Our business has a top quality assurance program are actually established for Graphite Electrode, Our products have won an excellent reputation at each of the related nations. Because the establishment of our firm. we’ve insisted on our production procedure innovation together with the most recent modern day managing method, attracting a sizable quantity of talents within this industry. We regard the solution good quality as our most vital essence character.
Graphite electrode, mainly made of petroleum coke and needle coke, coal tar pitch as binder, is prepared by calcination, compounding, kneading, pressing, roasting, graphitization and machining, and is released in the form of electric arc in electric arc furnace. The conductor that heats and melts the charge of the electric charge can be classified into ordinary power, high power and ultra high power according to its quality index.

REGULAR POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES

Items

Unit

Nominal Diameter (mm)

200-300

350-600

780-1400

Specific resistance

Electrode Nipple

μΩ‧m

7.5-8.5

6.5-7.0

7.5-8.5

6.5-7.0

8.5-10.5

6.5-7.0

Transverse Strength

Electrode Nipple

MPa

≥8.5

≥13.0

≥7.8

≥13.0

≥6.0

≥13.0

Elastic Modulus

Electrode Nipple

GPa

≤9.3

≤13.0

≤9.3

≤13.0

≤12.0

≤13.0

Ash content

Electrode Nipple

%

≤0.3

≤0.3

≤0.3

Bulk density

Electrode Nipple

G/cm3

1.55-1.60

1.63-1.68

1.55-1.60

1.63-1.68

1.59-1.62

1.65-1.70

(C.T.E)

Electrode Nipple

10-6

≤2.9

≤2.7

≤2.9

≤2.8

≤2.9

≤2.8

PERMISSIBLE CURRENT LOAD OF REGULAR POWER GRAPHITE ELECTRODES

Nominal diameter

Allowable current

mm

A

A/cm2

200-300

10000-13000

15-21

350-600

13500-32000

14-19

780-1400

57000-108000

12-8

HIGH POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES

Items

Unit

Nominal Diameter (mm)

200-300

350-600

Specific resistance

Electrode Nipple

μΩ‧m

5.2-6.5

4.8-5.2

5.5-6.8

4.8-5.0

Transverse Strength

Electrode Nipple

MPa

≥11.0

≥16.0

≥11.0

≥16.0

Elastic Modulus

Electrode Nipple

GPa

≤11.0

≤15.0

≤11.0

≤15.0

Ash content

Electrode Nipple

%

≤0.3

≤0.3

Bulk density

Electrode Nipple

G/cm3

1.64-1.70

1.73-1.79

1.63-1.70

1.73-1.79

(C.T.E)

Electrode Nipple

10-6℃

≤2.4

≤2.2

≤2.4

≤2.2

PERMISSIBLE CURRENT LOAD OF HIGH POWER GRAPHITE ELECTRODES

Nominal diameter

Allowable current

mm

A

A/cm2

200-300

13000-17400

17-24

350-600

17400-58000

15-23

ULTRA HIGH POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES

Items

Unit

Nominal Diameter (mm)

200-300

350-600

Specific resistance

Electrode Nipple

μΩ‧m

4.8-5.5

3.6-4.5

4.8-5.6

3.6-4.5

Transverse Strength

Electrode Nipple

MPa

≥11.0

≥18.0

≥11.0

≥18.0

Elastic Modulus

Electrode Nipple

GPa

≤13.0

≤17.0

≤13.0

≤17.0

Ash content

Electrode Nipple

%

≤0.3

≤0.3

Bulk density

Electrode Nipple

G/cm3

1.67-1.72

1.75-1.82

1.65-1.72

1.75-1.82

(C.T.E)

Electrode Nipple

10-6℃

≤1.5

≤1.4

≤1.5

≤1.4

PERMISSIBLE CURRENT LOAD OF ULTRA HIGH POWER GRAPHITE ELECTRODES

Nominal diameter

Allowable current

mm

A

A/cm2

200-300

13000-22000

20-30

350-600

20000-72000

19-24

SIZE OF CONIC SHAPE NIPPLE OF GRAPHITE ELECTRODES

Electrode Diameter (mm)

Nipple

Socket

Screw pitch

D

D2

L

I

D1

H

Deviation

Deviation

Buckle type 

Metric system

British system

(-0.30-0)

(-0.30-0)

(-1-0)

7

(-0.3-0)

(0-7)

3TPI

225

9”

139.7

91.22

203.2

141.22

107.6

8.47

250

10“

155.57

104.2

220

159.09

116

300

12“

177.16

117.39

270.9

148.68

141.5

350

14“

215.9

150.48

304.8

217.42

158.4

400

16“

215.9

150.18

304.8

217.42

158.4

400

16“

241.3

170.23

338.7

242.82

175.3

450

18“

241.3

170.23

338.7

242.82

175.3

450

18“

273.05

199.17

355.6

274.57

183.8

500

20“

273.05

199.17

355.6

274.57

183.8

500

20“

298.45

221.73

372.6

299.97

192.2

550

22“

298.45

221.73

372.6

299.97

192.2

600

24“

336.55

245.73

457.3

338.07

234.6

3TPIL

350

14“

215.9

144.85

338.7

217.42

175.3

400

16“

241.3

167.43

355.6

242.82

183.8

450

18“

273.05

182.23

457.3

274.57

234.6

4TPI

200

8“

122.24

81.48

177.8

7

115.92

94.9

6.35

225

9“

139.7

98.94

177.8

133.38

94.9

250

10“

152.4

109.52

190.5

146.08

101.3

300

12“

177.8

130.69

215.9

171.48

114

350

14“

203.2

149.74

254

196.88

133

400

16“

222.25

160.32

304.8

215.93

158.4

450

18“

241.3

179.37

304.8

234.98

158.4

500

20“

269.88

199.49

355.6

263.56

183.8

550

22“

298.45

228.06

355.6

292.13

183.8

600

24“

317.5

247.11

355.6

311.18

183.8

650

26“

355.6

268.27

457.2

349.28

234.6

700

28“

374.65

287.32

457.2

368.33

234.6

4TPIL

300

12“

177.8

124.34

254

171.48

133

350

14“

203.2

141.27

304.8

196.88

158.4

400

16“

222.25

151.86

355.6

215.93

183.8

450

18“

241.3

170.91

355.6

234.98

183.8

500

20“

269.88

182.55

457.2

263.56

234.6

550

22“

298.45

211.12

457.2

292.13

234.6

600

24“

317.5

230.17

457.2

311.18

234.6

650

26“

355.64

251.38

558.8

349.28

285.4

700

28“

374.65

270.39

558.8

368.33

285.4


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