Ultra High Power Graphite Electrode 300mm

Product Details
Type: Graphite Electrodes
Carbon Content: High-Carbon
Grade: RP
Manufacturer/Factory, Trading Company

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  • Ultra High Power Graphite Electrode 300mm
  • Ultra High Power Graphite Electrode 300mm
  • Ultra High Power Graphite Electrode 300mm
  • Ultra High Power Graphite Electrode 300mm
  • Ultra High Power Graphite Electrode 300mm
  • Ultra High Power Graphite Electrode 300mm
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Basic Info.

Model NO.
RP/HP/UHP
Forming Way
Extruded Graphite
Transport Package
Wooden Cases
Specification
100-600mm
Trademark
YJ
Origin
Dezhou
HS Code
85451100
Production Capacity
15000mt Per Year

Product Description

Yanjun Carbon is the subsidiary of Lubei Carbon which mainly produce RP/HP/UHP graphite electrodes in diameter 100mm-600mm, we have a complete calcining, crushing, forming, baking, impregnation, graphitization, machining production lines and advanced technology and complete quality test equipment for quality control.

Size of Electrodes:
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

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


RP Specifications:
Item Unit Norminal Diameter(mm)
75~130 150~225 250~300 350~500
Electric Resistivity Max Electrode μΩ·m 8.5 9.0 9.0 9.0
Nipples 6.5 6.5 6.5 6.5
Flexural Strength Min Electrode MPa 9.8 9.8 7.8 6.4
Nipples 13.0 13.0 13.0 13.0
Elastic Modulus Max Electrode GPa 9.3 9.3 9.3 9.3
Nipples 14.0 14.0 14.0 14.0
Bulk Density Min Electrode g/cm³ 1.58 1.52 1.52 1.52
Nipples 1.68 1.68 1.68 1.68
C.T.E. Max(100ºC~600ºC) Electrode 10¯6 /ºC 2.9 2.9 2.9 2.9
Nipples 2.7 2.7 2.8 2.8
Ash Max % 0.5 0.5 0.5 0.5

 HP Specifications:
Item Unit Norminal Diameter(mm)
200~400 450~500 550~600
Electric Resistivity Max Electrode μΩ·m 6.8 7.5 7.0
Nipples 5.5 5.5 5.0
Flexural Strength Min Electrode MPa 10.5 9.8 10.0
Nipples 14.0 14.0 16.0
Elastic Modulus Max Electrode GPa 12.0 12.0 12.0
Nipples 16.0 16.0 18.0
Bulk Density Min Electrode g/cm³ 1.60 1.60 1.65
Nipples 1.70 1.70 1.75
C.T.E. Max(100ºC~600ºC) Electrode 10¯6 /ºC 2.4 2.4 2.4
Nipples 2.2 2.2 2.2
Ash Max % 0.3 0.3 0.3

UHP Specifications:
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(100ºC~600ºC) Electrode 10¯6 /ºC 1.5 1.5 1.5
Nipples 1.4 1.4 1.3
Ash Max % 0.3 0.3 0.3

Current-Carrying Capacity of RP graphite electrodes
Norminal diameter(mm) Current-Carrying Capacity(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 13~16
600 40000~53000 13~16

Current-Carrying Capacity of HP graphite electrodes
Norminal diameter(mm) Current-Carrying Capacity(A) Current Density(A/cm²)
200 5500~9000 18-28
250 8000~13000 18-25
300 13000~17400 17~24
350 17400~24000 17~24
400 21000~31000 16~24
450 25000~40000 15~24
500 30000~48000 15~24
550 44000~58000 15~24
600 52000~67000 15~24

Current-Carrying Capacity of UHP graphite electrodes
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


Precautions for use:
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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