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300 ordinary graphite electrode
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product description
| project | unit | Nominal diametermm | |||||||||||||||||
| 75-130 | 150-225 | 250-300 | 300-450 | 500-800 | |||||||||||||||
| Optimal level | Level 1 | Optimal level | Level 1 | Optimal level | Level 1 | Optimal level | Level 1 | Optimal level | Level 1 | ||||||||||
| The resistivity ≤ | electrode | μΩm | 8.0 | 10.0 | 8.0 | 10.0 | 8.0 | 10.0 | 8.5 | 10.0 | 8.5 | 10.0 | |||||||
| joint | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | ||||||||||||||
| Flexural strength≥ | electrode | MPa | 10.0 | 10.0 | 8.0 | 7.0 | 6.5 | ||||||||||||
| joint | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 | ||||||||||||||
| Modulus of elasticity≤ | electrode | GPa | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | ||||||||||||
| joint | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | ||||||||||||||
| Bulk density≥ | electrode | g/cm3 | 1.60 | 1.60 | 1.60 | 1.58 | 1.56 | ||||||||||||
| joint | 1.70 | 1.70 | 1.70 | 1.70 | 1.70 | ||||||||||||||
| Coefficient of thermal expansion≤ （100℃-600℃） | electrode | 10-6/℃ | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | ||||||||||||
| joint | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | ||||||||||||||
| ash≤ | ％ | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |||||||||||||
| Note: ash and Coefficient of thermal expansion are used as reference indexes | |||||||||||||||||||
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