Price:	1.0 USD
Payment Terms:	T/T,L/C,D/P
Place of Origin:	Shandong, China (Mainland)


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Production Capacity: 60000 Tons Per Year

Delivery Date: 10 working days after recei...

Packing: Packing with wooden case an...

300-500mm UHP graphite electrode

300-500mm UHP graphite electrode,UHP Graphite Electrodes,Oxidation Resistance Graphite Electrode,UHP Graphite Electrodes Manufacturer

UHP Graphite Electrodes

Oxidation Resistance Graphite Electrode

UHP Graphite Electrodes Manufacturer

Electric resistivity : 4.6-6.2

Bending strength: >=10.5

Elastic Modulus: <=14

Bulk density:1.66-1.73

Ash: <=0.3

CTE:1.20-1.50

Ultra high power graphite electrode is a graphite electrode with allowable current density greater than 25A/cm2 . UHP graphite electrode mainly used in ultra-high power steelmaking electric arc furnace.

Ultra High Power Graphite Electrode Current Carrying CapacityUltra High Power Graphite Electrode Current Carrying Capacity

Physical and Chemical Index of Ultra high Power Graphite Electrode
Item		Unit	UHP
			300～500	550～600	700～800
Electric Resistivity	Electrode	uΩ.m	4.6～6.2	4.5～6.0	4.5～5.8
	Nipple		3.5～5.0	3.4～4.5	3.3～4.3
Bending Strength	Electrode	MPa	≥10.5	≥10.0	≥10.0
	Nipple		≥20.0	≥22.0	≥23.0
Modulus of Elasticity	Electrode	GPa	≤14.0	≤14.0	≤14.0
	Nipple		≤20.0	≤22.0	≤22.0
Bulk Density	Electrode	G/cm3	1.66～1.73	1.68～1.74
	Nipple		1.75～1.82	1.78～1.85
Ash Content	Electrode	%	≤0.3
	Nipple
The Coefficient of Thermal Expansion(CTE)	Electrode	10-6/℃	1.20～1.50	1.10～1.50
	Nipple		1.10～1.40	1.00～1.30

UHP Graphite Electrode Current Carrying Capacity
Norminal Diameter		UHP
Norminal Diameter		Current Carrying Capacity	Current Density
inch	mm	A	A/cm2
12	300	15000～22000	20～30
14	350	20000～30000	20～30
16	400	25000～40000	19～30
18	450	32000～45000	19～27
20	500	38000～55000	18～27
22	550	45000～65000	18～27
24	600	50000～75000	18～26
28	700	70000～120000	18～25
32	800	／	／

Tolerance of Graphite Electrode Diameter and Length(mm)
Nominal Diameter		Actural diameter			Length
in	mm	max	min	Black surface min	Length
12	300	307	302	299	1800/2000
14	350	358	352	349	1800/2000/2200
16	400	409	403	400	1800/2000/2200
18	450	460	454	451	1800/2000/2200
20	500	511	505	502	2000/2200/2400
22	550	562	556	553	2000/2200/2400/2700
24	600	613	607	604	2200/2400/2700/3000
28	700	714	710	707	2200/2400/2700/3000
29	800	816	812	809	2200/2400/2700/3000

Permissible Deviation of Graphite Electrode Length (mm)
Nominal Length	Standard Deviation		Short Length Deviation
Nominal Length	max	min	max	min
1800	+100	-100	-100	-275
2000	+100	-100	-100	-275
2200	+100	-100	-100	-275
2400	+100	-100	-100	-275
2700	+200	-150	-150	-275
3000	+200	-150	-150	-300