550-600mm 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 :
Bending strength: >=
Elastic Modulus: <=14
Bulk density:
Ash:<=
CTE:
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.
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Physical and Chemical Index of Ultra high Power Graphite Electrode
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|
Item
|
Unit
|
UHP
|
|
300～500
|
550～600
|
700～800
|
|
Electric Resistivity
|
Electrode
|
uΩ.m
|
～
|
～
|
～
|
|
Nipple
|
～
|
～
|
～
|
|
Bending Strength
|
Electrode
|
MPa
|
≥
|
≥
|
≥
|
|
Nipple
|
≥
|
≥
|
≥
|
|
Modulus of Elasticity
|
Electrode
|
GPa
|
≤
|
≤
|
≤
|
|
Nipple
|
≤
|
≤
|
≤
|
|
Bulk Density
|
Electrode
|
G/cm3
|
～
|
～
|
|
Nipple
|
～
|
～
|
|
Ash Content
|
Electrode
|
%
|
≤
|
|
Nipple
|
|
The Coefficient of Thermal Expansion(CTE)
|
Electrode
|
10-6/℃
|
～
|
～
|
|
Nipple
|
～
|
～
|
|
UHP Graphite Electrode Current Carrying Capacity
|
|
Norminal Diameter
|
UHP
|
|
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
|
|
Tolerance of Graphite Electrode Diameter and Length（mm)
|
|
Nominal Diameter
|
Actural diameter
|
Length
|
|
in
|
mm
|
max
|
min
|
Black surface min
|
|
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
|
|
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
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