UHP Grade Graphite Product Graphite Electrode for Steel From China, Find details about China Graphite Electrode, Electrode Arc Furnace from UHP Grade Graphite Product Graphite Electrode for Steel From China
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 |