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Item Unit RPGrade Dia100-600mm IPGradeDia150-500mm HPGrade Dia 300-600mm SHPGrade Dia300-600mm UHPGrade Dia350-600mm Electrode Resistivity≤ Nipple μΩM 8.5 7.5 7.5 7.0 6.5 6.0 6.0 5.5 5.5 4.5 Electrode Bendingstrength≥ Nipple MPa 9.8 13.0 10.0 13.0 10.0 14.0 10.0 16.0 11.0 16.0 Electrode ElasticModulus≤ Nipple GPa 9.3 14.0 12.0 14.0 12.0 16.0 14.0 18.0 14.0 18.0 Electrode BulkDensity≥ Nipple g/cm 1.56 1.69 1.62 1.70 1.63 1.72 1.64 1.72 1.65 1.72 Electrode CTE≤ Nipple 100 600 2.9 2.8 2.7 2.5 2.2 2.0 2.2 1.6 1.5 1.4 ASH≤ % 0.5 0.3 0.3 0.3 0.3