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From：SINCERITY TRADE CARBON CO., LTD Author：Sincerity Carbon Tags：Sincerity Carbon
| Standard for RP Graphite Electrodes and Nipples | |||||
| Items | Name | Unit | Nominal diameter (mm) | ||
| 200-300 | 350-600 | 780-1400 | |||
| Specific resistance | Electrode | μΩ .m | 7.5-8.5 | 7.5-8.5 | 8.5-10.5 |
| Nipple | 6.5-7.0 | 6.5-7.0 | 6.5-7.0 | ||
| Transverse strength | Electrode | Mpa | ≥8.5 | ≥7.8 | ≥6.0 |
| Nipple | ≥13.0 | ≥13.0 | ≥13.0 | ||
| Elastic module | Electrode | Gpa | ≤9.3 | ≤9.3 | ≤12.0 |
| Nipple | ≤13.0 | ≤13.0 | ≤13.0 | ||
| Ash content | Electrode | % | ≤0.3 | ≤0.3 | ≤0.3 |
| Nipple | ≤0.3 | ≤0.3 | ≤0.3 | ||
| Bulk density | Electrode | g/cm³ | 1.55-1.60 | 1.55-1.60 | 1.59-1.62 |
| Nipple | 1.63-1.68 | 1.63-1.68 | 1.65-1.70 | ||
| C.T.E （100-600）℃ |
Electrode | 10-6/℃ | ≤2.9 | ≤2.9 | ≤2.9 |
| Nipple | ≤2.7 | ≤2.8 | ≤2.8 | ||
| Allowable Current of RP Graphite Electrodes | ||
| Nominal diameter (mm) | Allowable current (A) | Current density (A/cm2) |
| 200-300 | 10000-13000 | 15-21 |
| 350-600 | 13500-32000 | 14-19 |
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