Physical and chemical indices of High Density graphite electrode and nipple
|
Specific Resistance (ฮฮฉm) |
Young’s Modulus (Gpa) |
Bending Strength (Mpa) |
Buld Density (G/Cmยณ) |
Ash Content (%) |
Coefficient
Of Thermal Expansion (100-600โ) |
|||||||
| Inspectionstandard | YB/T 120 | GB 3074.2 | GB3074.1 | YB/T 119 | GB1429 | GB 3074.4 | ||||||
| Specification | Max | Min | Max | |||||||||
| Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | |||
| High
Density |
200-300 | 6.5-7.5 | 5.2-6.0 | 10 | 14 | 10.5 | 15 | 1.6-1.64 | 1.7-1.73 | 0.3 | 2.6 | 2.4 |
| 350-500 | 6.5-7.5 | 5.2-6.0 | 10 | 14 | 10.5 | 15 | 1.6-1.64 | 1.7-1.73 | 2.6 | 2.5 | ||
| 550-650 | 6.8-8.0 | 5.2-6.5 | 10 | 14 | 10.5 | 15 | 1.6-1.64 | 1.7-1.73 | 2.6 | 2.5 | ||
| 700-800 | 6.8-9.5 | 5.2-6.5 | 10 | 14 | 10.5 | 15 | 1.6-1.64 | 1.7-1.73 | 2.6 | 2.5 | ||
Allowableย currentย loadย of High Density
| Nomical diameter mm | Current load A | Current Density A/cmยฒ |
| 200 | 5500-7500 | 18-26 |
| 250 | 7500-10500 | 18-26 |
| 350 | 14000-19000 | 17-24 |
| 400 | 19000-24500 | 17-24 |
| 450 | 24000-29000 | 17-24 |
| 500 | 27000-34000 | 16-23 |
| 550 | 31500-41000 | 15-23 |
| 600 | 38000-46000 | 15-22 |
| 650 | 43000-53000 | 15-22 |
| 700 | 46000-57000 | 14-21 |
| 800 | 60300-75000 | 14-21 |
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