Item		Unit	（mm）Nominal Diameter
			YB/T4090-2000		DNTS-UHP
			300,350,400	450-500	350-400	450-500	550-600
Electric Resistivily	Electrode	μΩ m	≤6.2	≤6.5	4.8-6.0	4.8-6.2	5.0-6.2
	Nipple		≤5.5	≤5.5	3.5-4.5	3.8-4.5	3.8-4.5
Bending stregth	Electrode	Mpa	≥10.5	≥10.0	≥12.0	≥11.0	≥11
	Nipple		≥18	≥18	≥18	≥18	≥18
Elastic moduluc	Electrode	Gpa	≤14.0	≤14.0	≤14.0	≤14.0	≤14.0
	Nipple		≤18.0	≤18.0	≤18.0	≤18.0	≤18.0
Bulk density	Electrode	g/cm3	≥1.65	≥1.64	1.65-1.72	1.66-1.74	1.66-1.74
	Nipple		≥1.72	≥1.70	1.76-1.78	1.76-1.82	1.78-1.82
Ash	Electrode	%	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3
	Nipple
CTE （100-600）℃	Electrode	10-6/℃	≤1.5	≤1.5	1.20-1.40	1.20-1.40	1.2-1.40
	Nipple		≤1.4	≤1.4	1.0-1.20	1.0-1.20	1.0-1.20

Nominal Diameter		Cross Sectional Area	YB/T4090-2000		DNTS-UHP
			Current Carrying Capacity	Current Density	Electrical are furnace		Refiners furnace
						Current Density	Current Carrying Capacity	Current Density
in	mm	cm3	A	A/cm3	A	A/cm3	A	A/cm3
14	350	973	20000-30000	20-30	23000-32000	24-33	26000-35000	27-36
16	400	1275	25000-40000	19-30	28000-41000	22-32	31000-44000	24-34
18	450	1622	32000-45000	19-27	34000-48500	21-30	36000-49500	22-31
20	500	2000	38000-55000	18-27	40000-58000	20-29	42000-60500	21-30
22	550	2427			46000-65000	19-27	49000-70000	20-29
24	600	2892			52000-75000	18-26	56000-81000	19-28

Item		Unit	(mm)Nominal Diameter
			Q/140200DNT001-2003         DNTS-SHP
			300、350、400	450-500	550-600
Electric Resistivily	Electrode	μΩ m	≤6.5	≤6.2	≤6.5
	Nipple		≤4.0	≤4.5	≤4.5
Bending stregth	Electrode	Mpa	≥13	≥13	≥13
	Nipple		≥18	≥18	≥18
Elastic moduluc	Electrode	Gpa	≤12	≤12	≤12
	Nipple		≤17	≤17	≤17
Bulk density	Electrode	g/cm3	≥1.65	≥1.65	≥1.65
	Nipple		≥1.76	≥1.76	≥1.76
Ash	Electrode	％	≤0.3	≤0.3	≤0.3
	Nipple		≤1.5	≤1.5	≤1.5
CTE （100-600）℃	Electrode	10-6/℃	≤1.2	≤1.2	≤1.2

Nominal Diameter Cross Sectional Area YB/T4090-2000     DNTS-UHP Electrical are furnace Refiners furnace Current Carrying Capacity Current Density Current Carrying Capacity Current Density In mm cm3 A A/cm3     A A/cm3 12 300 716 14000-20000 19-28 16000-23000 22-32 14 350 973 18000-26000 18-26 20500-30000 21-31 16 400 1275 23000-33000 18-26 26000-38000 20-30 18 450 1622 27000-42000 17-26 31000-48000 19-29 20 500 2000 32000-50000 16-25 36500-51000 18-28 22 550 2427 35000-55000 14-22 40000-63000 16-26 24 600 2892 37000-60000 13-20 42500-70000 15-24

Item		Unit	（mm）Nominal Diameter
			YB/T4088-2000		DNTS-HP	DNTS-HP
			200-400	450-500	350-400	450-500	550-600
Electric Resistivily	Electrode	μΩ m	≤7	≤7.5	≤6.8	≥6.5	≥7.0
	Nipple		≤6.5	≤6.5	≤5.5	≥5.5	≥5.5
Bending stregth	Electrode	Mpa	≤10.5	≤9.8	≤11	≤12.5	≤11
	Nipple		≤14	≤14	≤18	≤17	≤16
Elastic moduluc	Electrode	Gpa	≤12.0	≤12.0	≤10	≤10	≤10
	Nipple		≤16.0	≤16.0	≤16	≤16	≤16
Bulk density	Electrode	g/cm3	≥1.60	≥1.60	≤1.64	≥1.64	≥1.64
	Nipple		≥1.70	≥1.70	≥1.74	≥1.74	≥1.75
Ash	Electrode	%	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3
	Nipple
（100-600）℃	Electrode	10-6/℃	≤2.4	≤2.4	≤2.4	≤1.8	≤1.8
	Nipple		≤2.2	≤2.2	≤2.2	≤1.5	≤1.5

Nominal Diameter		Cross Sectional Area	YB/T4089-2000		Q/140200DNT002-2003 DNTS-HP、HPz
			Current Carrying Capacity	Current Density	Electrical are furnace		Refiners furnace
					Current Carrying Capacity	Current Density	Current Carrying Capacity	Current Density
in	mm	cm3	A	A/cm3	A	A/cm3	A	A/cm3
14	350	973	17400-24000	17-24	17500-24500	18-25	20000-28000	21-29
16	400	1275	21000-31000	16-25	21500-31000	17-24	25000-35000	19-28
18	450	1622	25000-40000	15-25	25500-39000	16-24	30000-45000	19-28
20	500	2000	30000-48000	25-25	21000-48000	15-23	36000-54000	18-27
22	550	2427			34000-56000	14-22	40000-60000	18-25
24	600	2892			36000-65000	12-22	45000-65000	16-23

Item		Unit	(mm)Nominal Diameter
			YB/T4088-2000		DNTS-RP
			250-300	350-500	300-350	400-600
Electric Resistivily	Electrode	μΩ m	≤10.5	≤10.5	≤9.0	≤9.5
	Nipple		≤8.5	≤8.5	≤6.5	≤6.5
Bending stregth	Electrode	Mpa	≥7.8	≥6.4	≥7.8	≥7.8
	Nipple		≥13.0	≥13.0	≥16.0	≥16.0
Elastic moduluc	Electrode	Gpa	≤9.3	≤9.3	≤9.3	≤9.3
	Nipple		≤14.0	≤14.0	≤14.0	≤14.0
Bulk density	Electrode	g/cm3	≥1.52	≥1.52	≥1.54	≥1.54
	Nipple		≥1.68	≥1.68	≥1.70	≥1.70
Ash	Electrode	％	≤0.5	≤0.5	≤0.4	≤0.4
	Nipple		≤2.9	≤2.9	≤2.8	≤2.8
CTE （100-600）℃	Electrode	10-6/℃	≤2.8	≤2.8	≤1.8	≤1.8

Nominal Diameter		Cross Sectional Area	YB/T4088-2000		DNTS-RP
			CurrentCarrying Capacity	CurrentDensity	Current Carrying Capacity	Current Density
In	mm	cm3	A	A/cm3	A	A/cm3
12	300	716	10000-13000	14-18	11000-16000	15-22
14	350	973	13500-18000	14-18	15000-22000	15-22
16	400	1275	18000-23500	14-18	20000-28000	15-21
18	450	1622	22000-27000	13-17	24000-34000	13-20
20	500	2000	25000-32000	13-16	28000-36000	13-18
22	550	2427			31500-41000	13-17
24	600	2892			38000-46000	13-16