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Graphite Electrode (RP)

High Power Graphite Electrode (HP)                       

Ultra-High Power Graphite Electrode (UHP)                                  

 

 

Items

Unit

Nominal Diametermm

RP

HP

UHP

150~900

300~400

450~600

300~400

450~600

Electrical Resistivity   

Electrode

μΩm

8.5

6.5

7

5.9

6.2

Tie-in

8

6

6

5.5

5.5

Break Resistance Intensity ≥

Electrode

Mpa

8

12

10.5

13

11

Tie-in

15

15

15

17

17

Elastic Modulus ≤

Electrode

pa

9

11

11

12

12

Tie-in

13

14

14

16

16

Bulk Density ≥

Electrode

g/cm3

1.56

1.62

1.62

1.66

1.65

Tie-in

1.7

1.72

1.72

1.74

1.72

Thermal Expansion Coeffcient (100°C~600°C)≤

Electrode

10-6/°C

2.9

2.4

2.4

1.5

1.5

Tie-in

2.8

2.2

2.2

1.4

1.4

Ash Content ≤

0.5

0.5

0.3

0.3

0.3

Notes

1、Ash figure is only for reference
2、The specification and the current burthen of 50mm-700mmElectrode is according to customer demands

SUGGESTED CURRENT--CARRYING CAPACITY OF ELECTRODES

Nominal  Diameter

 
Suggested Current—Carrying CapacityA

 MM

 Inch

UHP

 R P

H P

150

6

 

3000~4500

  

200

8

 

5000~6900

  

250

10

 

7000~10000

  

300

12

15000~22000

10000~13000

13000~17400

350

14

20000~30000

13000~18000

17400~24000

400

16

25000~40000

18000~23500

24000~32000

450

18

32000~45000

22000~27000

32000~40000

500

20

38000~55000

25000~32000

40000~48000

 

SPECIFICATIONS & ALLOWANCE OF GRAPHITE ELECTRODES 

 Diameter (mm)

  Length (mm)

 Nominal Diameter

  Actual Diameter

  Nominal
Length
(mm)

 Allowance

 MM

  Inch

 Max

 Min

 Length

 Short Dimension

150
200


154
204

151
201

1600

±100

-275

250
300
350

10
12
14

256
307
357

252
303
353

1600
1800

±100

-275

400
450
500
600

16
18
20
24

408
459
510
613

404
455
506
607

1800
2 1 0 0

±100

-275

Note: In Compliance with international standardIEC 239/1987,each batch delivery is allowed to include electrodes with the length of 15% short-dimension.

 

 

 
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