300-500mm HP graphite electrode,HP Graphite Electrode,HP Graphite Electrodes For Arc Furnaces,HP Graphite Electrode Manufacture
Product Description
Specifications
Description
300-500mm HP graphite electrode,HP Graphite Electrode,HP Graphite Electrodes For Arc Furnaces,HP Graphite Electrode Manufacture
HP Graphite Electrode
HP Graphite Electrodes For Arc Furnaces
HP Graphite Electrode Manufacture
Electric resistivity : 5.5-6.8
Bending strength: >=10.0
Elastic Modulus: <=13
Bulk density:1.62-1.70
Ash: <=0.3
CTE: 1.80-2.20
High power graphite electrode is a graphite electrode with allowable current density between 18-25A/cm2. HP graphite electrode mainly used in high power steelmaking electric arc furnace.
| Physical and Chemical Index of Hign Power Graphite Electrode: | ||||
| Item | Unit | HP | ||
| 300～500 | 550～700 | |||
| Electric Resistivity | Electrode | uΩ.m | 5.5～6.8 | 5.5～7.0 |
| Nipple | 4.0～5.5 | |||
| Bending Strength | Electrode | MPa | ≥10.0 | ≥8.5 |
| Nipple | ≥18.0 | |||
| Modulus of Elasticity | Electrode | GPa | ≤13.0 | |
| Nipple | ≤15.0 | |||
| Bulk Density | Electrode | g/cm3 | 1.62～1.70 | |
| Nipple | 1.72～1.80 | |||
| Ash Content | Electrode | % | ≤0.3 | |
| Nipple | ||||
| The Coefficient of Thermal Expansion(CTE) | Electrode | 10-6/℃ | 1.80～2.20 | |
| Nipple | 1.50～1.80 |
| High Power Graphite Electrode Current Carrying Capacity | |||
| Norminal Diameter | HP | ||
| Current Carrying Capacity | Current Density | ||
| inch | mm | A | A/cm2 |
| 12 | 300 | 13000～17400 | 17～24 |
| 14 | 350 | 17400～24000 | 17～24 |
| 16 | 400 | 21000～31000 | 16～24 |
| 18 | 450 | 25000～40000 | 15～24 |
| 20 | 500 | 30000～48000 | 15～24 |
| 22 | 550 | 34000～53000 | 14～22 |
| 24 | 600 | 38000～58000 | 13～21 |
| 28 | 700 | 45000～72000 | 12～19 |
| 32 | 800 | ／ | ／ |
| Tolerance of Graphite Electrode Diameter and Length（mm) | |||||
| Nominal Diameter | Actural diameter | Length | |||
| in | mm | max | min | Black surface min | |
| 12 | 300 | 307 | 302 | 299 | 1800/2000 |
| 14 | 350 | 358 | 352 | 349 | 1800/2000/2200 |
| 16 | 400 | 409 | 403 | 400 | 1800/2000/2200 |
| 18 | 450 | 460 | 454 | 451 | 1800/2000/2200 |
| 20 | 500 | 511 | 505 | 502 | 2000/2200/2400 |
| 22 | 550 | 562 | 556 | 553 | 2000/2200/2400/2700 |
| 24 | 600 | 613 | 607 | 604 | 2200/2400/2700/3000 |
| 28 | 700 | 714 | 710 | 707 | 2200/2400/2700/3000 |
| 29 | 800 | 816 | 812 | 809 | 2200/2400/2700/3000 |
| Permissible Deviation of Graphite Electrode Length (mm) | ||||
| Nominal Length | Standard Deviation | Short Length Deviation | ||
| max | min | max | min | |
| 1800 | +100 | -100 | -100 | -275 |
| 2000 | +100 | -100 | -100 | -275 |
| 2200 | +100 | -100 | -100 | -275 |
| 2400 | +100 | -100 | -100 | -275 |
| 2700 | +200 | -150 | -150 | -275 |
| 3000 | +200 | -150 | -150 | -300 |
Terms
| FOB Price: | negotiated |
| Minimum Order: | 10T |
| Port: | qingdao |
| Payment Terms: | L/C,T/T,D/P |