We can supply a full range RP HP and UHP grades graphite electrodes which can meet with the demands of the major customers. The diameter is from 75mm to 700mm , length from 1200mm to 2700mm. The graphite electrodes we produced is made of the best needle coke and production technology, owning the following main features: high strength, good conductivity, good thermal shock resistance and low consumption. Graphite electrodes used in the steel, metallurgy, non-ferrous, chemical industry and other industries.
Graphite electrodes
SECTIONAL VIEW
Names and Introduction of All Parts of Graphite Electrode
![Delimiter](http://www.wlcarbon-group.com/wp-content/uploads/2019/03/jt.png)
Properties | ||||||||
---|---|---|---|---|---|---|---|---|
Item | Unit | RP | HP | UHP | ||||
≤φ400 | ≥φ450 | ≤φ400 | ≥φ450 | ≤φ400 | ≥φ450 | |||
Resistivity | Electrode | μ Ω · m | 7.0-8.5 | 7.0-8.8 | 5.5-6.5 | 5.8-6.5 | 4.5-6.0 | 4.5-6.0 |
Nipple | 4.2-5.2 | 3.5-4.5 | 3.2-4.0 | |||||
Bending Strengths | Electrode | Mpa | 8.5-9.5 | 8.0-8.5 | 11.4-14 | 11-14 | 12-15 | 12-15 |
Nipple | 17-22 | 20-25 | 21-28 | |||||
Elastlc Modulus | Electrode | Gpa | 8.0-9.3 | 9-12 | 9-14 | |||
Nipple | 10-14 | 10-16 | 10-18 | |||||
Ash | Electrode | % | 0.4 | 0.2 | 0.2 | |||
Nipple | ||||||||
Bulk Density | Electrode | g/cm³ | 1.54-1.61 | 1.65-1.72 | 1.66-1.73 | |||
Nipple | 1.72-1.77 | 1.75-1.80 | 1.77-1.82 | |||||
C·T·E(100~600℃) | Electrode | 10-6/℃ | 2.1-2.4 | 1.6-1.8 | 1.0-1.4 | |||
Nipple | 1.0-2.3 | 1.4-1.6 | 1.9-1.3 |
RP Graphite Electrode | |||||
---|---|---|---|---|---|
Nominal Diameter |
Current Carrying Capacity | ||||
mm | A | A/c㎡ | |||
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 | 31000-41000 | 13-16 | |||
600 | 37000-45000 | 13-16 | |||
700 | 45000-59000 | 12-15 |
HP Graphite Electrode | |||||
---|---|---|---|---|---|
Nominal Diameter |
Current Carrying Capacity | ||||
mm | A | A/c㎡ | |||
200 | 5500-9000 | 18-25 | |||
250 | 8000-13000 | 18-25 | |||
300 | 13000-17400 | 17-24 | |||
350 | 17400-24000 | 17-24 | |||
400 | 21000-31000 | 14-18 | |||
450 | 25000-40000 | 16-24 | |||
500 | 30000-48000 | 15-24 | |||
550 | 37000-58000 | 15-23 | |||
600 | 42000-58000 | 15-23 | |||
700 | 59620-83600 | 15-21 |
UHP Graphite Electrode | |||||
---|---|---|---|---|---|
Nominal Diameter |
Current Carrying Capacity | ||||
mm | A | A/c㎡ | |||
200 | |||||
250 | |||||
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 | 45000-65000 | 18-27 | |||
600 | 52000-75000 | 18-26 | |||
700 | 68000-96000 | 17-24 |
Dimension of Tapered Nipples | |||||||||
---|---|---|---|---|---|---|---|---|---|
Nominal Diameter | IEC Code |
Sizes of Nipple(mm) | Sizes of Socket | Thread | |||||
mm | in | D(-0.5-0) | L(-1-0) | d2(-5-0) | I | d1(0-0.5) | H(0-7) | mm | |
200 | 8 | 122T4N | 122.24 | 177.80 | 80.00 | <7 | 115.92 | 94.90 | 6.35 |
250 | 10 | 155T3N | 155.57 | 220.00 | 103.80 | <10 | 147.14 | 116.00 | 8.47 |
250 | 10 | 152T4N | 152.40 | 190.50 | 108.00 | <7 | 171.48 | 114.00 | 6.35 |
300 | 12 | 177T3N | 177.16 | 270.90 | 116.90 | <10 | 168.73 | 114.50 | 8.47 |
300 | 12 | 177T4N | 177.80 | 215.90 | 129.20 | <7 | 171.48 | 114.00 | 6.35 |
350 | 14 | 215T3N | 215.90 | 304.80 | 150.00 | <10 | 207.47 | 158.40 | 8.47 |
350 | 14 | 203T4N | 203.20 | 254.00 | 148.20 | <7 | 196.88 | 133.00 | 6.35 |
400 | 16 | 241T3N | 241.30 | 338.70 | 169.80 | <10 | 232.87 | 175.30 | 8.47 |
400 | 16 | 222T4N | 222.25 | 304.80 | 168.80 | <7 | 215.93 | 158.40 | 6.35 |
400 | 16 | 222T4L | 222.25 | 255.60 | 150.00 | 215.93 | 183.80 | ||
450 | 18 | 273T3N | 271.05 | 355.60 | 198.70 | <10 | 274.62 | 183.80 | 8.47 |
450 | 18 | 241T4N | 241.30 | 304.80 | 177.90 | <7 | 234.98 | 158.40 | 6.35 |
450 | 18 | 241T4L | 241.20 | 355.60 | 169.42 | 234.98 | 183.80 | ||
500 | 20 | 298T3N | 298.45 | 372.60 | 221.30 | <10 | 290.02 | 192.20 | 8.47 |
500 | 20 | 269T4N | 269.88 | 355.60 | 198.00 | <7 | 263.56 | 183.80 | 6.35 |
500 | 20 | 269T4L | 269.88 | 457.20 | 181.08 | 263.56 | 234.60 | ||
550 | 22 | 298T4N | 298.45 | 355.60 | 226.58 | <7 | 292.13 | 183.80 | 6.35 |
550 | 22 | 298T4L | 298.45 | 457.20 | 209.655 | 292.13 | 234.60 | ||
600 | 24 | 317T4N | 317.50 | 355.60 | 254.63 | <7 | 311.18 | 183.80 | 6.35 |
600 | 24 | 317T4L | 317.50 | 457.20 | 228.70 | 311.18 | 234.60 | ||
700 | 28 | 374T4N | 374.65 | 457.20 | 285.84 | <7 | 368.33 | 234.60 | 6.35 |
700 | 28 | 374T4N | 374.65 | 558.80 | 268.91 | 368.33 | 285.40 |
Tolerance | |||||||
---|---|---|---|---|---|---|---|
Nominal Diameter | Actual Diamter(mm) | Actual Length(mm) | |||||
mm | in | Max | Min | Black cover part | Length | Tolerance | Short Length |
200 | 8 | 205 | 200 | 197 | 1600 1800 |
+100 | -275 |
250 | 10 | 256 | 251 | 248 | |||
300 | 12 | 307 | 302 | 299 | |||
350 | 14 | 357 | 352 | 349 | |||
400 | 16 | 409 | 403 | 400 | 1600 1800 2000 2200 2400 2700 |
||
450 | 18 | 460 | 454 | 451 | |||
500 | 20 | 511 | 505 | 502 | |||
550 | 22 | 562 | 556 | 553 | |||
600 | 24 | 613 | 607 | 604 | |||
700 | 28 | 714 | 708 | 705 |