Type: Diameter75-600mm Name: Regular power Graphite Electrode Description: Regular power Graphite Electrode Technical properties of graphite electrode
1. Physical and chemical index
ltem		unit	Nominal Diameter(mm)
			YB/T4088-2000				Typical Values
			Industry Standard
			75-130	150-225	250-300	350-550	75-130	150-225	250-300	300-550
Electric Resistivity	Electrode	μΩ·m	≤9.0	≤9.0	≤9.0	≤9.0	≤8.0	≤8.5	≤8.5	≤9.0
	Nipple		≤8.5	≤8.5	≤8.5	≤8.5	≤6.5	≤6.8	≤7.0	≤7.0
Bending strength	Electrode	Mpa	≥9.8	≥9.8	≥7.8	≥6.4	≥9.8	≥7.8	≥7.8	≥8.0
	Nipple		≥13.0	≥13.0	≥13.0	≥13.0	≥13	≥13.0	≥13.0	≥15.0
Elastic modulus	Electrode	Gpa	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.0
	Nipple		≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤13.0
Bulk density	Electrode	g/cm3	≥1.58	≥1.52	≥1.52	≥1.52	≥1.60	≥1.56	≥1.56	≥1.55
	Nipple		≥1.63	≥1.63	≥1.68	≥1.68	≥1.70	≥1.72	≥1.72	≥1.70
Ash	Electrode	％	≤0.5	≤0.5	≤0.5	≤0.5		≤0.4	≤0.4
							≤0.4			≤0.4
	Nipple
CTE     (100-600)℃	Electrode	10-6/℃	≤2.9	≤2.9	≤2.9	≤2.9	≤2.8	≤2.8	≤2.8	≤2.7
	Nipple		≤2.7	≤2.7	≤2.8	≤2.8	≤2.6	≤2.6	≤2.6	≤2.5
Current Carrying Capacity And Current Density
Nominal		Regular power
diameter
mm	inch	Current load A					Current density A/cm2
75	3	1000-1400					22-31
100	4	1500-2400					19-30
130	5	2200-3400					17-26
150	6	3000-4500					16-25
175	7	35800-5100					16-21
200	8	5000-6900					15-21
225	9	6000-8000					15-20
250	10	7000-10000					15-20
300	12	10000-13000					14-18
350	14	13500-18000					14-18
400	16	18000-23500					14-18
450	18	22000-27000					13-17
500	20	25000-32000					13-16
550	22	32000-40000					13-16
600	24	38000-47000					13-16