Good Quality Current Clamp Sensor - GRAPHITE ELECTRODE – COSAVE
Good Quality Current Clamp Sensor - GRAPHITE ELECTRODE – COSAVE Detail:
Graphite electrode, mainly made of petroleum coke and needle coke, coal tar pitch as binder, is prepared by calcination, compounding, kneading, pressing, roasting, graphitization and machining, and is released in the form of electric arc in electric arc furnace. The conductor that heats and melts the charge of the electric charge can be classified into ordinary power, high power and ultra high power according to its quality index.
REGULAR POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES
Items |
Unit |
Nominal Diameter (mm) |
||||
200-300 |
350-600 |
780-1400 |
||||
Specific resistance |
Electrode Nipple |
μΩ‧m |
7.5-8.5 6.5-7.0 |
7.5-8.5 6.5-7.0 |
8.5-10.5 6.5-7.0 |
|
Transverse Strength |
Electrode Nipple |
MPa |
≥8.5 ≥13.0 |
≥7.8 ≥13.0 |
≥6.0 ≥13.0 |
|
Elastic Modulus |
Electrode Nipple |
GPa |
≤9.3 ≤13.0 |
≤9.3 ≤13.0 |
≤12.0 ≤13.0 |
|
Ash content |
Electrode Nipple |
% |
≤0.3 |
≤0.3 |
≤0.3 |
|
Bulk density |
Electrode Nipple |
G/cm3 |
1.55-1.60 1.63-1.68 |
1.55-1.60 1.63-1.68 |
1.59-1.62 1.65-1.70 |
|
(C.T.E) |
Electrode Nipple |
10-6℃ |
≤2.9 ≤2.7 |
≤2.9 ≤2.8 |
≤2.9 ≤2.8 |
PERMISSIBLE CURRENT LOAD OF REGULAR POWER GRAPHITE ELECTRODES
Nominal diameter |
Allowable current |
|
mm |
A |
A/cm2 |
200-300 |
10000-13000 |
15-21 |
350-600 |
13500-32000 |
14-19 |
780-1400 |
57000-108000 |
12-8 |
HIGH POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES
Items |
Unit |
Nominal Diameter (mm) |
||
200-300 |
350-600 |
|||
Specific resistance |
Electrode Nipple |
μΩ‧m |
5.2-6.5 4.8-5.2 |
5.5-6.8 4.8-5.0 |
Transverse Strength |
Electrode Nipple |
MPa |
≥11.0 ≥16.0 |
≥11.0 ≥16.0 |
Elastic Modulus |
Electrode Nipple |
GPa |
≤11.0 ≤15.0 |
≤11.0 ≤15.0 |
Ash content |
Electrode Nipple |
% |
≤0.3 |
≤0.3 |
Bulk density |
Electrode Nipple |
G/cm3 |
1.64-1.70 1.73-1.79 |
1.63-1.70 1.73-1.79 |
(C.T.E) |
Electrode Nipple |
10-6℃ |
≤2.4 ≤2.2 |
≤2.4 ≤2.2 |
PERMISSIBLE CURRENT LOAD OF HIGH POWER GRAPHITE ELECTRODES
Nominal diameter |
Allowable current |
|
mm |
A |
A/cm2 |
200-300 |
13000-17400 |
17-24 |
350-600 |
17400-58000 |
15-23 |
ULTRA HIGH POWER GRAPHITE ELECTRODES AND THE INDEX OF NIPPLES
Items |
Unit |
Nominal Diameter (mm) |
||
200-300 |
350-600 |
|||
Specific resistance |
Electrode Nipple |
μΩ‧m |
4.8-5.5 3.6-4.5 |
4.8-5.6 3.6-4.5 |
Transverse Strength |
Electrode Nipple |
MPa |
≥11.0 ≥18.0 |
≥11.0 ≥18.0 |
Elastic Modulus |
Electrode Nipple |
GPa |
≤13.0 ≤17.0 |
≤13.0 ≤17.0 |
Ash content |
Electrode Nipple |
% |
≤0.3 |
≤0.3 |
Bulk density |
Electrode Nipple |
G/cm3 |
1.67-1.72 1.75-1.82 |
1.65-1.72 1.75-1.82 |
(C.T.E) |
Electrode Nipple |
10-6℃ |
≤1.5 ≤1.4 |
≤1.5 ≤1.4 |
PERMISSIBLE CURRENT LOAD OF ULTRA HIGH POWER GRAPHITE ELECTRODES
Nominal diameter |
Allowable current |
|
mm |
A |
A/cm2 |
200-300 |
13000-22000 |
20-30 |
350-600 |
20000-72000 |
19-24 |
SIZE OF CONIC SHAPE NIPPLE OF GRAPHITE ELECTRODES
Electrode Diameter (mm) |
Nipple |
Socket |
Screw pitch |
||||||
D |
D2 |
L |
I |
D1 |
H |
||||
Deviation |
≤ |
Deviation |
|||||||
Buckle type |
Metric system |
British system |
(-0.30-0) |
(-0.30-0) |
(-1-0) |
7 |
(-0.3-0) |
(0-7) |
|
3TPI |
225 |
9” |
139.7 |
91.22 |
203.2 |
141.22 |
107.6 |
8.47 |
|
250 |
10“ |
155.57 |
104.2 |
220 |
159.09 |
116 |
|||
300 |
12“ |
177.16 |
117.39 |
270.9 |
148.68 |
141.5 |
|||
350 |
14“ |
215.9 |
150.48 |
304.8 |
217.42 |
158.4 |
|||
400 |
16“ |
215.9 |
150.18 |
304.8 |
217.42 |
158.4 |
|||
400 |
16“ |
241.3 |
170.23 |
338.7 |
242.82 |
175.3 |
|||
450 |
18“ |
241.3 |
170.23 |
338.7 |
242.82 |
175.3 |
|||
450 |
18“ |
273.05 |
199.17 |
355.6 |
274.57 |
183.8 |
|||
500 |
20“ |
273.05 |
199.17 |
355.6 |
274.57 |
183.8 |
|||
500 |
20“ |
298.45 |
221.73 |
372.6 |
299.97 |
192.2 |
|||
550 |
22“ |
298.45 |
221.73 |
372.6 |
299.97 |
192.2 |
|||
600 |
24“ |
336.55 |
245.73 |
457.3 |
338.07 |
234.6 |
|||
3TPIL |
350 |
14“ |
215.9 |
144.85 |
338.7 |
217.42 |
175.3 |
||
400 |
16“ |
241.3 |
167.43 |
355.6 |
242.82 |
183.8 |
|||
450 |
18“ |
273.05 |
182.23 |
457.3 |
274.57 |
234.6 |
|||
4TPI |
200 |
8“ |
122.24 |
81.48 |
177.8 |
7 |
115.92 |
94.9 |
6.35 |
225 |
9“ |
139.7 |
98.94 |
177.8 |
133.38 |
94.9 |
|||
250 |
10“ |
152.4 |
109.52 |
190.5 |
146.08 |
101.3 |
|||
300 |
12“ |
177.8 |
130.69 |
215.9 |
171.48 |
114 |
|||
350 |
14“ |
203.2 |
149.74 |
254 |
196.88 |
133 |
|||
400 |
16“ |
222.25 |
160.32 |
304.8 |
215.93 |
158.4 |
|||
450 |
18“ |
241.3 |
179.37 |
304.8 |
234.98 |
158.4 |
|||
500 |
20“ |
269.88 |
199.49 |
355.6 |
263.56 |
183.8 |
|||
550 |
22“ |
298.45 |
228.06 |
355.6 |
292.13 |
183.8 |
|||
600 |
24“ |
317.5 |
247.11 |
355.6 |
311.18 |
183.8 |
|||
650 |
26“ |
355.6 |
268.27 |
457.2 |
349.28 |
234.6 |
|||
700 |
28“ |
374.65 |
287.32 |
457.2 |
368.33 |
234.6 |
|||
4TPIL |
300 |
12“ |
177.8 |
124.34 |
254 |
171.48 |
133 |
||
350 |
14“ |
203.2 |
141.27 |
304.8 |
196.88 |
158.4 |
|||
400 |
16“ |
222.25 |
151.86 |
355.6 |
215.93 |
183.8 |
|||
450 |
18“ |
241.3 |
170.91 |
355.6 |
234.98 |
183.8 |
|||
500 |
20“ |
269.88 |
182.55 |
457.2 |
263.56 |
234.6 |
|||
550 |
22“ |
298.45 |
211.12 |
457.2 |
292.13 |
234.6 |
|||
600 |
24“ |
317.5 |
230.17 |
457.2 |
311.18 |
234.6 |
|||
650 |
26“ |
355.64 |
251.38 |
558.8 |
349.28 |
285.4 |
|||
700 |
28“ |
374.65 |
270.39 |
558.8 |
368.33 |
285.4 |
Product detail pictures:



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