China UHP/HP/RP High Power Graphite Electrode with High Quality, Find details about China Graphite Electrode, Electrode Arc Furnace from UHP/HP/RP High Power Graphite Electrode with High Quality
Item | Unit | RP | HP | UHP | ||||
250-400 | 450-800 | 300-400 | 450-700 | 300-400 | 450-700 | |||
Electric Resistivity | Electrode | μΩ.m | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.0 | 4.8-6.2 |
Nipple | 4.5-5.5 | 4.0-5.0 | 3.5-4.5 | |||||
Bending Strength | Electrode | Mpa | ≥8.0 | ≥11.0 | ≥11.0 | |||
Nipple | ≥15.0 | ≥16.0 | ≥18.0 | |||||
Elastic Modulus | Electrode | Gpa | ≤9.0 | ≤11.0 | ≤13.0 | |||
Nipple | ≤13.0 | ≤14.0 | ≤15.0 | |||||
Bulk Density | Electrode | g/cm3 | 1.55-1.65 | 1.63-1.73 | 1.65-1.75 | |||
Nipple | 1.70-1.75 | 1.73-1.80 | 1.75-1.82 | |||||
Ash | Electrode | % | ≤0.3 | |||||
Nipple | ||||||||
CTE(100-600)ºC | Electrode | 10-6/ºC | 2.00-2.50 | 1.80-2.00 | 1.30-1.50 | |||
Nipple | 1.50-1.80 | 1.50-1.80 | 1.20-1.40 |
Nomina diameter | RP | HP | UHP | ||||
Current Carrying Capacity | Current Density | Current Carrying Capacity | Current Density | Current Carrying Capacity | Current Density | ||
in | mm | A | A/cm2 | A | A/cm2 | A | A/cm2 |
12 | 300 | 10000-13000 | 14-18 | 13000-17400 | 17-24 | 15000-22000 | 20-30 |
14 | 350 | 13500-18000 | 14-18 | 17400-24000 | 17-24 | 20000-30000 | 20-30 |
16 | 400 | 18000-23500 | 14-18 | 21000-31000 | 16-24 | 25000-40000 | 19-30 |
18 | 450 | 22000-27000 | 13-17 | 25000-40000 | 15-24 | 32000-45000 | 19-27 |
20 | 500 | 25000-32000 | 13-16 | 30000-48000 | 15-24 | 38000-55000 | 18-27 |
22 | 550 | 32000-40000 | 13-16 | 35000-55000 | 14-22 | 42000-64000 | 17-26 |
24 | 600 | 35000-41000 | 13-15 | 41000-61000 | 14-21 | 50000-73000 | 17-25 |
28 | 700 | 39000-48000 | 10-12 | 55000-82000 | 14-21 | 67000-99000 | 17-25 |
32 | 800 | 43000-54000 | 8-10 | / | / | / | / |
Nominal Diameter | Actual Diameter(mm) | Actual Diameter(mm) | mm | Allowable Tolerance | |||
mm | lnch | Max | Min | Rough spot(B) | Length | Short Length | |
200 | 8" | 205 | 200 | 197 | 1600/1800 | ±100 | -275 |
250 | 10" | 256 | 251 | 248 | 1600/1800/2000 | ||
300 | 12" | 307 | 302 | 299 | 1600/1800/2000/2200 | ||
350 | 14" | 357 | 352 | 349 | 1600/1800/2000/2200 | ||
400 | 16" | 409 | 403 | 400 | 1600/1800/2000/2200 | ||
450 | 18" | 460 | 454 | 451 | 1600/1800/2000/2200 | ||
500 | 20" | 511 | 505 | 502 | 1800/2000/2200/2400 | ||
550 | 22" | 562 | 556 | 553 | 1800/2000/2200/2400/2700 | ||
600 | 24" | 613 | 607 | 604 | 2000/2200/2400/2700/3000 | ||
650 | 26" | 663 | 659 | 656 | 2000/2200/2400/2700/3000 | ||
700 | 28" | 714 | 710 | 707 | 2000/2200/2400/2700/3000 |