China 200mm 250mm RP HP Graphite Electrode Graphite Electrode for Arc Furnaces, Find details about China Graphite Electrode, Furnace Electrode from 200mm 250mm RP HP Graphite Electrode Graphite Electrode for Arc Furnaces
Product Name | 200mm 250mm RP HP Graphite Electrode Graphite Electrode for arc furnaces |
Nipple Type | 3TPI/4TPI/T4L |
Length | 1800mm/2000mm/2200mm/2400mm |
Current Load | 37000A-57000A |
Application | >HP Graphite electrode for submerged arc furnace. >HP graphite electrode for AC arc furnace. >HP graphite electrode for DC arc furnace. |
Product Advantage | >Anti-oxidation treatment for longevity. >High-purity,high-density,strong chemical stability. >High machining accuracy,good surface finishing. >High mechanical strength,low electrical resistance. >Resistant to cracking & spalling. >High resistance to oxidation and thermal shock. |
Graphite Electrode Specification And Allowable Deviation | |||||||
Nominal Diameter | Actual Diameter | Nominal Length | Permissible Deviation | ||||
mm | inch | max | min | mm | Short Length | ||
300 | 12 | 307 | 302 | 1600 1800 | Length | Maximum | Minimum |
350 | 14 | 357 | 352 | ±100 | -100 | -275 | |
400 | 16 | 409 | 403 | ||||
450 | 18 | 460 | 454 | ||||
500 | 20 | 511 | 505 | 1600/1800/ 2000/2200 1800/2000/ 2200 | ±100 | -100 | -275 |
550 | 22 | 556 | 553 | ||||
600 | 24 | 613 | 607 |
Permissible Current Load and Current Density Of Graphite Electrodes | ||||||
Nominal Diameter | Ordinary | High Power | Super High | |||
mm | Current Capacity(A) | Current Density A/cm2 | Current Capacity(A) | Current Density A/cm2 | Current Capacity(A) | Current Density A/cm2 |
200 | 5000-6900 | 15-21 | 5500-9000 | 18-25 | ||
250 | 7000-10000 | 14-20 | 8000-13000 | 18-25 | 9200-15100 | 21-30 |
300 | 10000-13000 | 14-18 | 13000-17400 | 17-24 | 13000-22000 | 20-30 |
350 | 13500-18000 | 14-18 | 17400-24000 | 17-24 | 20000-30000 | 20-30 |
400 | 18000-23500 | 14-18 | 21000-32000 | 16-24 | 25000-40000 | 19-30 |
450 | 22000-27000 | 13-17 | 25000-40000 | 15-24 | 32000-45000 | 19-27 |
500 | 25000-32000 | 13-16 | 30000-48000 | 15-24 | 38000-55000 | 18-27 |
550 | 32000-40000 | 13-16 | 37000-57000 | 15-23 | 48000-60000 | 18-24 |
600 | 38000-47000 | 13-16 | 44000-67000 | 15-23 | 52000-72000 | 18-24 |
700 | 45000-54000 | 13-16 | 54000-73000 | 15-23 | 62000-95000 | 18-24 |