| Graphite Electrode Dimensions | |||||
| We can produce the non-standards dimension GE as per the customer’s requirement | |||||
| Nominal Diameter |
Diameter
Allowance Range (mm) |
Nominal Length | |||
| in | mm | min. | max. | in | mm |
| 8 | 200 | 200 | 205 | 60/72 | 1500/1800 |
| 9 | 225 | 225 | 230 | 60/72 | 1500/1800 |
| 10 | 250 | 251 | 256 | 60/72 | 1500/1800 |
| 12 | 300 | 302 | 307 | 60/72 | 1500/1800 |
| 14 | 350 | 352 | 357 | 72/80 | 1800/2100 |
| 16 | 400 | 403 | 408 | 72/80 | 1800/2100 |
| 18 | 450 | 454 | 460 | 72/82/94 | 1800/2100/2400 |
| 20 | 500 | 505 | 511 | 72/82/94 | 1800/2100/2400 |
| 22 | 550 | 556 | 562 | 72/82/94 | 1800/2100/2400 |
| 24 | 600 | 607 | 613 | 82/94/106 | 2100/2400/2700 |
| 28 | 700 | 708 | 714 | 94/106 | 2400/2700 |
| Nipple Dimensions | ||||||||
| Number of Threads Per Inch=3 | ||||||||
|
Electrode Diameter |
IEC Code |
Diameter
Allowance Range (mm) |
Socket | |||||
| in | mm |
Large
Dia. D1(mm) |
Length L1(mm) |
Medium
Dia. D2(mm) |
Small
Dia. D3(mm) |
Depth L2(mm) |
||
| 10 | 250 | 155T3N | 155.58 | 220.10 | 151.36 | 147.15 | 116.00 | |
| 12 | 300 | 177T3N | 177.16 | 270.90 | 172.95 | 168.73 | 141.50 | |
| 14 | 350 | 215T3N | 215.90 | 304.80 | 211.69 | 207.47 | 158.40 | |
| 16 | 400 | 215T3N | 251.90 | 304.80 | 211.69 | 207.47 | 158.40 | |
| 16 | 400 | 241T3L | 241.30 | 338.70 | 237.09 | 232.87 | 175.30 | |
| 18 | 450 | 241T3N | 241.30 | 338.70 | 237.09 | 232.87 | 175.30 | |
| 18 | 450 | 273T3L | 273.05 | 355.60 | 268.84 | 264.62 | 183.80 | |
| 20 | 500 | 273T3N | 273.05 | 355.60 | 268.84 | 264.62 | 183.80 | |
| 20 | 500 | 298T3L | 298.45 | 372.60 | 294.24 | 290.02 | 192.20 | |
| 22 | 550 | 298T3N | 298.45 | 372.60 | 294.24 | 290.02 | 192.20 | |
| Number of Threads Per Inch=4 | ||||||||
|
Electrode Diameter |
IEC Code | Nipple | Socket | |||||
| in | mm |
Large
Dia. D1(mm) |
Length L1(mm) |
Medium
Dia. D2(mm) |
Small
Dia. D3(mm) |
Depth L2(mm) |
||
| 8 | 200 | 122T4N | 122.24 | 177.80 | 119.08 | 115.92 | 94.90 | |
| 10 | 250 | 152T4N | 152.40 | 190.50 | 149.24 | 146.08 | 101.30 | |
| 12 | 300 | 177T4N | 177.80 | 215.90 | 174.64 | 171.48 | 114.00 | |
| 14 | 350 | 203T4N | 203.20 | 254.00 | 200.04 | 196.88 | 133.00 | |
| 16 | 400 | 222T4N | 222.25 | 304.80 | 219.09 | 215.93 | 158.40 | |
| 16 | 400 | 222T4L | 222.25 | 355.60 | 219.09 | 215.93 | 183.80 | |
| 18 | 450 | 241T4N | 241.30 | 304.80 | 238.14 | 234.98 | 158.40 | |
| 18 | 450 | 241T4L | 241.30 | 355.60 | 238.14 | 234.98 | 183.80 | |
| 20 | 500 | 269T4N | 269.88 | 355.60 | 266.72 | 263.56 | 183.80 | |
| 20 | 500 | 269T4L | 269.88 | 457.20 | 266.72 | 263.56 | 234.60 | |
| 22 | 550 | 298T4N | 298.45 | 355.60 | 295.29 | 292.13 | 183.80 | |
| 22 | 550 | 298T4L | 298.45 | 457.20 | 295.29 | 292.13 | 234.60 | |
| 24 | 600 | 317T4N | 317.50 | 355.60 | 314.34 | 311.18 | 183.80 | |
| 24 | 600 | 317T4L | 317.50 | 457.20 | 314.34 | 311.18 | 234.60 | |
| 28 | 700 | 374T4N | 374.65 | 457.20 | 371.49 | 368.33 | 234.60 | |
| 28 | 700 | 374T4L | 374.65 | 558.80 | 371.49 | 368.33 | 285.40 | |
| Technical Parameters | ||||||||||
| We can customize products as per the customer’s actual operational parameters. | ||||||||||
| Item | Unit | NP | HP | HD | UHP | |||||
| ≤Ø400 | ≥Ø450 | ≤Ø400 | ≥Ø450 | ≤Ø350 | ≤Ø400 | ≥Ø450 | ||||
|
Electric Resistivity |
Electrode | μΩ·m | ≤8.5 | ≤9.0 | ≤6.0 | ≤6.5 | ≤6.5 | ≤5.0 | ≤5.5 | |
| Nipple | ≤5.5 | ≤5.5 | ≤4.5 | ≤4.5 | ≤4.8 | ≤4.0 | ≤4.0 | |||
|
Transverse Strength |
Electrode | Mpa | ≥8.0 | ≥7.0 | ≥10.5 | ≥10.5 | ≥10.5 | ≥15.0 | ≥15.0 | |
| Nipple | ≥16.0 | ≥16.0 | ≥20.0 | ≥20.0 | ≥18 | ≥24.0 | ≥24.0 | |||
|
Young’s Modulus |
Electrode | Gpa | ≤9.3 | ≤12.0 | ≤12 | ≤14.0 | ||||
| Nipple | ≤14.0 | ≤16.0 | ≤18 | ≤18.0 | ||||||
| Bulk Density | Electrode | g/cm³ | ≥1.54 | ≥1.65 | ≥1.68 | ≥1.68 | ||||
| Nipple | ≥1.70 | ≥1.74 | ≥1.74 | ≥1.76 | ||||||
|
Coefficient of Thermal Expansion (100℃-600℃) |
Electrode | 10-6℃ | ≤2.5 | ≤2.0 | ≤2.3 | ≤1.5 | ||||
| Nipple | ≤2.0 | ≤1.6 | ≤1.8 | ≤1.2 | ||||||
| Ash | Electrode | % | ≤0.2 | ≤0.2 | ≤0.3 | ≤0.2 | ||||
| Nipple | ≤0.3 | |||||||||