Item		Unit	ND/Regular Size(mm)
			200-300	350-400	450-500	550-600
Specific Resistance	Electrode	μΩm	≤6.5	≤6.8	≤6.5	≤7
	Nipple		≤5.5	≤5.5	≤5.5	≤5.5
Bending Strength	Electrode	Mpa	≥12	≥11	≥12.5	≥11
	Nipple		≥15	≥18	≥17	≥16
Elastic Modulus	Electrode	Gpa	≤12	≤10	≤10	≤10
	Nipple		≤16	≤16	≤16	≤16
Bulk Density	Electrode	g/cm3	≥1.64	≥1.64	≥1.64	≥1.64
	Nipple		≥1.74	≥1.74	≥1.74	≥1.74
Ash Content	Electrode	%	≤0.3	≤0.3	≤0.3	≤0.3
	Nipple		≤0.3	≤0.3	≤0.3	≤0.3