- +86-18810758518
- balint@chixcarbon.com
High-power graphite electrode(HP) is processed by pressing, roasting, impregnating and graphitizing processes with high-quality petroleum coke, asphalt, and needle coke. It has high flexural strength, good seismic performance, and small consumption. It is widely used in electric arc furnaces of steel company, and silicon company and so on.
Technical Quota of Graphite Electrodes
| ITEM | UNIT | RP | HP | UHP | ||
| 3-24inch φ75-600mm | 4-24inch φ300-600mm | 12-20inch φ300-500mm | 22-28inch φ550-700mm | |||
| Resistivity | Electrode | μΩ·m | 7.0-9.0 | 5.5-6.5 | 4.8-5.8 | 4.5-5.5 |
| Nipple | 4.0-4.5 | 3.5-4.0 | 3.0-4.0 | 2.5-3.5 | ||
| Bending stregth | Electrode | Mpa | 8.0-12.0 | 10.0-14 | 10.0-15.0 | 12.0-16.0 |
| Nipple | 19.0-22.0 | 20.0-23.0 | 20.0-24.0 | 22.0-25.0 | ||
| Elastic Modulus | Electrode | Gpa | 7.0-11.0 | 80.-12.0 | 9.0-13.0 | 10.0-14.0 |
| Nipple | 12.0-14.0 | 14.0-16.0 | 15.0-18.0 | 16.0-19.0 | ||
| Bulk density | Electrode | g/cm3 | 1.60-1.65 | 1.68-1.72 | 1.70-1.75 | 1.70-1.75 |
| Nipple | 1.75-1.8 | 1.85-1.8 | 1.78-1.82 | 1.8-1.85 | ||
| Ash | Electrode | % | 0.3 | 0.3 | 0.2 | 0.2 |
| Nipple | ||||||
| CTE | Electrode | 10-6/℃ 100-600℃ | 2.0-2.4 | 1.6-1.9 | 1.1-1.4 | 1.1-1.4 |
| Nipple | 1.8-2.2 | 1.1-1.4 | 0.9-1.2 | 0.9-1.2 | ||
Graphite electrodes allow current loading and current density
| Item | Nominal diameter(mm) | Allowed current load（A） | Current density（A/cm2） |
| RP Graphite Electrodes | 100 | 1500～2400 | 19～30 |
| 150 | 3500～4900 | 20～28 | |
| 200 | 5000～6900 | 16～22 | |
| 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 | |
| 600 | 35000～41000 | 13～15 | |
| HP Graphite Electrodes | 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 | |
| UHP Graphite Electrodes | 300 | 15000～22220 | 20～32 |
| 350 | 20000～30300 | 20～32 | |
| 400 | 25000～40400 | 19～32 | |
| 450 | 32000～45450 | 19～29 | |
| 500 | 38000～55550 | 18～29 | |
| 550 | 42000～64640 | 17～28 | |
| 600 | 50000～76760 | 17～27 | |
| 700 | 67000～101000 | 17～27 |
Specifications ﹠Allowance of Graphite Electrodes
| Diameter mm | Length mm | ||||||
| Nominal Diameter | Actual Diameter | Nominal Length | Tolerance | ||||
| mm | inch | max (mm) | min （mm） | mm | inch | Nominal Length（mm） | Short Length（mm） |
| 200 | 8 | 205 | 200 | 160 1800 2100 | 60 72 84 | ±100 | -275 |
| 250 | 10 | 256 | 251 | ||||
| 300 | 12 | 307 | 302 | ||||
| 350 | 14 | 357 | 352 | ||||
| 400 | 16 | 409 | 403 | 1800 2100 2400 2700 | 72 84 96 108 | ||
| 450 | 18 | 460 | 454 | ||||
| 500 | 20 | 511 | 505 | ||||
| 600 | 24 | 613 | 607 | ||||
| 700 | 28 | 713 | 707 | ||||
The Form ﹠Size of Cone Nipple
| Item | Nominal diameter(mm) | IEC | Nipple | Nipple hole | Thread pitch | ||
| d | L | D1 | S | ||||
| RP/HP/UHP Graphite Electrodes | 225 | 139T3N | 139.70 | 203.20 | 131.27 | 107.60 | 8.47 |
| 250 | 155T3N | 155.57 | 220.00 | 147.14 | 116.00 | ||
| 300 | 177T3N | 177.16 | 270.90 | 168.73 | 141.50 | ||
| 350 | 215T3N | 215.90 | 304.80 | 207.47 | 158.40 | ||
| 400 | 215T3N | 215.90 | 304.80 | 207.47 | 158.40 | ||
| 400 | 241T3N | 241.30 | 338.70 | 232.87 | 175.30 | ||
| 450 | 241T3N | 241.30 | 338.70 | 232.87 | 175.30 | ||
| 450 | 273T3N | 273.05 | 355.60 | 264.62 | 183.80 | ||
| 500 | 273T3N | 273.05 | 355.60 | 264.62 | 183.80 | ||
| 500 | 298T3N | 298.45 | 372.60 | 290.02 | 192.20 | ||
| 550 | 298T3N | 298.45 | 372.60 | 290.02 | 192.20 | ||
| RP/ HP Graphite Electrodes | 75 | 46T4N | 46.04 | 76.20 | 39.72 | 44.10 | 6.35 |
| 100 | 69T4N | 69.85 | 101.60 | 63.53 | 56.80 | ||
| 130 | 79T4N | 79.38 | 127.00 | 73.06 | 69.50 | ||
| 150 | 92T4N | 92.08 | 139.70 | 85.76 | 75.90 | ||
| 200 | 122T4N | 122.24 | 177.80 | 115.92 | 94.9 | ||
| 225 | 139T4N | 139.70 | 177.80 | 133.38 | 94.90 | ||
| 250 | 152T4N | 152.40 | 190.50 | 146.08 | 101.30 | ||
| RP/HP/UHP Graphite Electrodes | 300 | 177T4N | 177.80 | 215.90 | 171.48 | 114.00 | |
| 350 | 203T4N | 203.20 | 254.00 | 196.88 | 133.00 | ||
| 400 | 222T4N | 222.25 | 304.80 | 215.93 | 158.40 | ||
| 400 | 222T4L | 222.25 | 355.60 | 215.93 | 183.80 | ||
| 450 | 241T4N | 241.30 | 304.80 | 234.98 | 158.40 | ||
| 450 | 241T4L | 241.30 | 355.60 | 234.98 | 183.80 | ||
| 500 | 269T4N | 269.88 | 355.60 | 263.56 | 183.80 | ||
| 500 | 269T4L | 269.88 | 457.20 | 263.56 | 234.60 | ||
| 550 | 298T4N | 298.45 | 355.60 | 292.13 | 183.80 | ||
| 550 | 298T4L | 298.45 | 457.20 | 292.13 | 234.60 | ||
| 600 | 317T4N | 317.50 | 355.60 | 311.18 | 183.80 | ||
| 600 | 317T4L | 317.50 | 457.20 | 311.18 | 234.60 | ||
| 700 | 374T4N | 374.65 | 457.20 | 368.33 | 234.60 | ||
| 700 | 374T4L | 374.65 | 558.80 | 368.33 | 285.40 | ||
Beijing Zhixing Carbon Co., Ltd.
Add: No.8,South Ring Road, Haoxinzhuang Village,Linzhang County,Handan City,Hebei,China.
Tel: +86-310-7822095
Mob: +86-18810758518; +86-13739649715
Email: balint@chixcarbon.com endy@chixcarbon.com
Website: http://www.bchix.com
