Graphite electrode is mainly used in electric arc furnace. They are presently the only products available that have the high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in EAF. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes. Graphite electrodes are divided into 4 Types: RP Graphite electrodes, HP Graphite electrodes, SHP Graphite electrodes, UHP Graphite electrodes. HAILICARBON is the manufacturer for it, plz see bellow details
Product parameters
Diameter and length for all grades:
Diameter mm
Length mm
Nominal Diameter
Actual Diameter
Nominal Length
Allowance
mm
inch
Max
Min
mm
Standard
Short
200
8
205
200
1600/1800
± 100
-275
250
10
256
251
1800
300
12
307
302
1800/2000
350
14
357
352
1800/2000
400
16
409
403
1800/2000
450
18
460
454
2100/2400
500
20
511
505
2100/2400
550
22
562
556
2100/2400
600
24
613
607
2400/2700
650
26
663
657
2400/2700
700
28
714
708
2500/2700
Machining Dimension of Electrode and Nipple:
Applicable
Dia.
mm
IEC code
Nipple
Socket
Large Dia.
mm
Length
mm
SmallDia.
mm
Socket Depth
mm
UHP
SHP
HP
RP
250
155T3N
155.57
220.00
147.14
116.00
300
177T3N
177.16
270.90
168.73
141.50
350
215T3N
215.90
304.80
207.47
158.40
400
215T3N
215.90
304.80
207.47
158.40
400
241T3N
241.30
338.70
232.87
175.30
450
241T3N
241.30
338.70
232.87
175.30
450
273T3N
273.05
355.60
264.62
183.80
500
273T3N
273.05
355.60
264.62
183.80
500
298T3N
298.45
372.60
290.02
192.20
550
298T3N
298.45
372.60
290.02
192.20
UHP
SHP
HP
RP
200
122T4N
122.24
177.80
115.92
94.90
250
152T4N
152.40
190.50
146.08
101.30
300
177T4N
177.80
215.90
171.48
114.00
350
203T4N
203.20
254.00
196.88
133.00
400
222T4N
222.25
304.80
215.93
158.40
400
222T4L
222.25
355.60
215.93
183.80
450
241T4N
241.30
304.80
234.98
158.40
450
241T4L
241.30
355.60
234.98
183.80
500
269T4N
269.88
355.60
263.56
183.80
500
269T4L
269.88
457.20
263.56
234.60
550
298T4N
298.45
355.60
292.13
183.80
550
298T4L
298.45
457.20
292.13
234.60
600
317T4N
317.50
355.60
311.18
183.80
600
317T4L
317.50
457.20
311.18
234.60
650
355T4N
355.60
457.20
349.28
234.60
650
355T4L
355.60
558.8
349.28
285.40
700
374T4N
374.65
457.20
368.33
234.60
700
374T4L
374.65
558.80
368.33
285.40
Graphiteelectrodesuses
Graphite electrodesareusedprimarily in electric arc furnace steel manufacturing.Graphite electrodescan provide high levels of electrical conductivity and capability of sustaining the extremely high levels of generated heat.Graphite electrodesarealsousedin the refinement of steel and similar smelting processes.
1.The electrode holder should be held in the place beyond the security line of the top electrode; otherwise the electrode would be easily broken. The contact surface between the holder and the electrode should be cleaned up regularly to maintain a good contacting. The cooling jacket of the holder shall be avoided from water leakage.
2. Identify the reasons if there is gap in the electrode junction, do not use the muntil the gap is eliminated. 3. If there is falling off of nipple bolt when connecting electrodes, it is necessary to complete the nipple bolt. 4. The application of electrode should avoid of tilting operation, particularly, the group of connected electrodes should not be put horizontally so as to prevent from breaking. 5. When charging materials to the furnace, the bulk materials should be charged to the place of the furnace bottom, so as to minimize the impact of the large furnace materials on the electrodes. 6. The large pieces of insulation materials should be avoided of stacking on the bottom of the electrodes when smelting, so as to prevent from affecting the electrode use, or even broken. 7. Avoid of collapsing the furnace lid when rising or dropping the electrodes, which may result in electrode damage. 8. It is necessary to prevent the steel slag from splashing to the threads of the electrodes or nipple stored in the smelting site, which my damage the precision of the threads.