RP Graphite Electrode
◐Power (RP) Graphite Electrode is made of high-quality petroleum coke and pitch, through calcination, batching, kneading, molding, baking, graphitization, machining.
Product Details
1.Introduction
Power (RP) Graphite Electrode is made of high-quality petroleum coke and pitch, through calcination, batching, kneading, molding, baking, graphitization, machining, and the Graphite Electrode Nipple is made by three times impregnation and four times baking process.
2.Applications
Regular Power (RP) Graphite Electrodes are suitable for all kinds of AC/DC Regular Power Electric Arc Furnaces, Resistance Furnaces, Submerged Electric Furnaces for smelting all kinds of alloy steel, metal, non-metal, etc.
3.Specifications
Items | Classification | Unit | Nominal Diameter (mm) | |||||||||
75-130 | 150-225 | 250-300 | 350-450 | 500-800 | ||||||||
Grade A | Grade B | Grade A | Grade B | Grade A | Grade B | Grade A | Grade B | Grade A | Grade B | |||
Resistivity | Electrode | μΩm | 8.5 | 10.0 | 9.0 | 10.5 | 9.0 | 10.5 | 9.0 | 10.5 | 9.0 | 10.5 |
Nipple | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | |||||||
Bending Strength | Electrode | Mpa | 10.0 | 10.0 | 8.0 | 7.0 | 6.5 | |||||
Nipple | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 | |||||||
Young’s Modulus | Electrode | Gpa | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | |||||
Nipple | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | |||||||
Bulk Density | Electrode | g/cm3 | 1.58 | 1.53 | 1.53 | 1.53 | 1.52 | |||||
Nipple | 1.70 | 1.70 | 1.70 | 1.70 | 1.70 | |||||||
CTE (100℃-600℃) | Electrode | ×10-6/℃ | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | |||||
Nipple | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | |||||||
Ash Content |
| % | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |||||
Note: Ash Content is only for reference.
Recommended current load of RP Graphite Electrodes
Grade | Nominal Dia. | Allowable current A | Current density A/cm2 |
RP electrode | 200mm | 500～6900 | 15～21 |
250mm | 7000～10000 | 14～20 | |
300mm | 10000～13000 | 14～18 | |
350mm | 13500～18000 | 14～18 | |
400mm | 18000～23500 | 14～18 | |
450mm | 22000～27000 | 13～17 | |
500mm | 25000～32000 | 13～16 | |
550mm | 28000～34000 | 12～14 | |
600mm | 30000～36000 | 11～13 | |
650mm | 32000～39000 | 10～12 | |
700mm | 34000～42000 | 9～11 |