Basic Info.
Model NO.
RP/HP/UHP
shipment
Sea Railway
Currency
Cny USD EUR
Language
Chinese English
Color
Black
Application
Eaf and Lf Furnace for Steel Melting
Resistivity
4.6-5.8
Modulus of Rupture
10-14 MPa
Bulk Density
1.68-1.74 g/cm3
Length
1500-2700mm
Delivery Time
7 Days (Within 100tons)
Ash
0.3%
Delivery Terms
Fob, CFR, CIF, EXW;
Payment Type
T/T, L/C;
Nipple Size
3tp 3tpl 4tp 4tpl
Bending Strength
6.5-8.5
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:
Dimension of Cylinder Nipples:
Dimension of 3TPI Conical Nipples:
Dimension of 4TPI Conical Nipples:
RP Specifications:
HP Specifications:
UHP Specifications:
Current-Carrying Capacity of RP graphite electrodes
Current-Carrying Capacity of HP graphite electrodes
Current-Carrying Capacity of UHP graphite electrodes
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.
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.
