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UHP Graphite Electrode
Ultra-high-power graphite （UHP）electrodes are made of high-quality needle coke, coal tar pitch and other raw materials, which are refined through calcining, medium crushing, screening, batching, kneading, pressing, baking, impregnation, graphitization, machining and other processes. Uniform, conductive, good thermal conductivity, high mechanical strength, strong resistance to oxidation and corrosion at high temperatures, widely used in electric arc furnaces and ladle refining furnaces for smelting various alloy steels, yellow phosphorus, industrial silicon, brown corundum and other alloys and non-metals material.
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UHP Graphite Electrode
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- Product Description
- Electrodes Size
- Nipples Size
- Specifications
- Current-Carrying Capacity
- Packing
- Precautions for Use
-
- Commodity name: UHP Graphite Electrode
- Commodity ID: 1053232983462207488
Ultra-high-power graphite （UHP）electrodes are made of high-quality needle coke, coal tar pitch and other raw materials, which are refined through calcining, medium crushing, screening, batching, kneading, pressing, baking, impregnation, graphitization, machining and other processes. Uniform, conductive, good thermal conductivity, high mechanical strength, strong resistance to oxidation and corrosion at high temperatures, widely used in electric arc furnaces and ladle refining furnaces for smelting various alloy steels, yellow phosphorus, industrial silicon, brown corundum and other alloys and non-metals material.
Ultra-high-power graphite （UHP）electrodes are made of high-quality needle coke, coal tar pitch and other raw materials, which are refined through calcining, medium crushing, screening, batching, kneading, pressing, baking, impregnation, graphitization, machining and other processes. Uniform, conductive, good thermal conductivity, high mechanical strength, strong resistance to oxidation and corrosion at high temperatures, widely used in electric arc furnaces and ladle refining furnaces for smelting various alloy steels, yellow phosphorus, industrial silicon, brown corundum and other alloys and non-metals material.
Key words:- Ultra-high-power graphite （UHP）electrodes
- electrodes
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Norminal Diameter (mm)
Actual Diameter (mm)
Length (mm)*
mm
inch
Max
Min
Low Spot
75
3
78
73
72
1600
100
4
103
98
97
1600
130
5
132
127
126
1600
150
6
154
149
146
1800
200
8
205
200
197
1800
225
9
230
225
222
1800
250
10
256
251
248
1800
300
12
307
302
299
1800
350
14
357
352
349
1800
400
16
409
403
400
1800.2100
450
18
460
454
451
1800.2100
500
20
511
505
502
1800.2100
550
22
562
556
553
2100.2400
600
24
613
607
604
2100.2400
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Dimension of Cylinder Nipples
Norminal Diameter (mm)
Size of Nipples (mm)
Size of Sockets (mm)
Thread (mm)
mm
inch
D
d
L
D
d
H
a
b
c
75
3
41.2
0
-0.5
33.8
0
-0.5
103.0
0
-1.0
42.5
+0.50
35.1
+0.50
53.0
+7
0
8.47
2.37
2.82
100
4
66.7
59.3
135.0
68.0
60.6
69.0
130
5
69.8
62.4
153.0
71.1
63.7
78.0
150
6
88.9
81.5
169.0
90.2
82.8
85.0
200
8
122.2
114.8
203.0
123.5
116.1
103.0
225
9
139.7
128.8
203.0
140.98
130.0
106.0
12.70
3.67
4.32
250
10
152.4
141.5
228.0
154.1
143.2
116.0
300
12
184.2
173.3
254.0
185.9
175.0
129.0
350
14
215.9
205.0
280.0
217.6
206.7
142.0
400
16
244.5
233.6
305.0
246.2
235.3
155.0
450
18
274.3
0
-0.7
263.4
0
-0.7
340.0
0
-2 .0
276.0
+0.70
265.1
+0.70
172.5
500
20
296.0
285.1
375.0
297.7
286.8
190.0
Dimension of 3TPI Conical Nipples
Norminal Diameter (mm)
Size of Nipples (mm)
Size of Sockets (mm)
Thread (mm)
mm
inch
D
L
d
1
d
H
225
9
139.7
0
-0.5
203.2
0-1
90.73
0
-5
<10
131.27
+0.5
0
107.6
+7
0
8.47
250
10
155.57
220.10
103.80
147.14
116.00
300
12
177.17
270.90
116.90
168.73
141.50
350
14
215.90
304.80
150.00
207.47
158.40
400
16
215.9
304．8
150
207．47
158．40
400
16
241.30
338.70
169.80
232.87
175.30
450
18
241.30
338.70
169.80
232.87
175.30
450
18
273.05
355.60
198.70
264.62
183.80
500
20
273.05
355.60
198.70
264.62
183.80
500
20
298.45
372.60
221.30
290.02
192.20
Dimension of 4TPI Conical Nipples
Norminal Diameter (mm)
Size of Nipples (mm)
Size of Sockets (mm)
Thread (mm)
mm
inch
D
L
d
1
d
H
75
3
46.04
0
-0.5
76.20
0
-1
20.80
0
-5
<7
39.72
+0.5
0
44.10
+7
0
6.35
100
4
69.85
101.60
40.30
63.53
56.80
130
5
79.38
127.00
45.60
73.06
69.50
150
6
92.08
139.70
56.20
85.76
75.90
200
8
122.24
177.80
80.00
115.92
94.90
225
9
139.70
177.80
97.46
133.38
94.90
250
10
152.40
190.50
108.00
146.08
101.30
300
12
177.80
215.90
129.20
171.48
114.00
350
14
203.20
254.00
148.20
196.88
133.00
400
16
222.25
304.80
158.80
215.93
158.40
400
16
222.25
355.60
150.00
215.93
183.80
450
18
241.30
304.80
177.90
234.98
158.40
450
18
241.30
355.60
169.42
234.98
183.80
500
20
269.88
355.60
198.00
263.56
183.80
500
20
269.88
457.20
181.08
263.56
234.60
550
22
298.45
355.60
226.58
292.13
183.80
550
22
298.45
457.20
209.65
292.13
234.60
600
24
317.50
355.60
245.63
311.18
183.30
600
24
317.50
457.20
228.70
311.18
234.60
-
Item
Unit
Norminal Diameter（mm）
300~400
450~500
550~600
Electric Resistivity Max
Electrode
μΩ·m
6.2
6.3
5.8
Nipples
4.5
4.5
4.0
Flexural Strength Min
Electrode
MPa
11.5
11.5
11.0
Nipples
20.0
20.0
22.0
Elastic Modulus Max
Electrode
GPa
14.0
14.0
14.0
Nipples
20.0
20.0
22.0
Bulk Density Min
Electrode
g/cm³
1.71
1.70
1.68
Nipples
1.76
1.78
1.80
C.T.E. Max（100℃~600℃）
Electrode
10¯⁶ /℃
1.5
1.5
1.5
Nipples
1.4
1.4
1.3
Ash Max
%
0.3
0.3
0.3
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Norminal diameter（mm）
Current-Carrying Capacity（A）
Current Density（A/cm²）
300
15000~22000
20~30
350
20000~30000
20~30
400
25000~40000
19~30
450
32000~45000
19~27
500
38000~55000
18~27
550
45000~70000
18~27
600
50000~97000
18~27
-
The packing is made of wood and plywood with strip steel outside and plastic outside. The solid wood slat is used to protect the graphite electrodes, the nipples and sockets are protected by foam hat first then by plywood outside, the plastic inside has effect of moisture proof and dust proof, with 6-8 steel strips outside, beautiful and firm which suitable for land and sea transportation.
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1. When selecting electrode diameter for steel making, please refer to electrode current capacity.
2.Graphite electrodes should be protected from rain and snow during transportation and storage. Before use, they must be dried.
3.Graphite electrodes should be handled with care during loading, unloading, and transportation to protect the threads and prevent damage.
4.Before connecting the electrode, the electrode socket thread must be blown out with compressed air, and then the nipples and the electrode should be tightened.
5.The electrode lifting device of the electrode should not shake during operation to prevent the nipples from loosening and tripping.
6.The electrode holder must not hold the electrode near the nipple socket.
7.When charging the furnace, a large steel block should be placed at the lower part to prevent the material from collapsing and breaking the electrode during melting.
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