Specification Sheet for Current Carrying Capacities (Amps., Max.)
Dia.
(mm) |
RP |
HD |
HP |
SHP |
UHP |
|
|
LF |
EAF |
LF |
EAF |
LF |
EAF |
75 |
1000-1600 |
1000-2000 |
1200-2500 |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
100 |
1500-2500 |
1500-3000 |
1600-3500 |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
130 |
2200-3800 |
2200-4200 |
2500-4800 |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
150 |
3000-5000 |
3500-5500 |
4200-6500 |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
175 |
4000-6500 |
4500-7500 |
5000-9000 |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
200 |
5000-9000 |
5500-10000 |
6400-11200 |
6000-9000 |
7000-12000 |
6400-10500 |
8000-14000 |
7000-12500 |
225 |
6500-11000 |
7000-12000 |
10000-14000 |
8000-11500 |
11000-16000 |
9000-13000 |
12000-18000 |
10000-15000 |
250 |
8000-13500 |
8500-14500 |
12500-17000 |
10500-13500 |
13000-19000 |
11000-15000 |
14000-21000 |
12000-17000 |
300 |
11000-17500 |
11500-19000 |
17000-23000 |
14000-19000 |
18000-26000 |
15000-21500 |
20000-29000 |
17000-25000 |
350 |
15000-23000 |
16000-25000 |
22000-31000 |
17500-24500 |
24000-33500 |
20000-28000 |
27000-37000 |
24500-32000 |
400 |
20000-28000 |
21000-30000 |
26000-39000 |
21000-32000 |
29000-42000 |
23000-37000 |
33000-48000 |
28000-44000 |
450 |
24000-35000 |
N.A. |
32500-49000 |
26000-40000 |
35000-52000 |
29000-45000 |
39000-58000 |
34000-52000 |
500 |
28000-36000 |
N.A. |
40000-60000 |
32000-50000 |
42000-63000 |
38000-55000 |
44000-68000 |
41000-63000 |
550UHP |
AC Furnace: 48000-70000; DC Furnace: 65000-78000 |
600UHP |
AC Furnace: 55000-80000; DC Furnace: 75000-90000 |
650UHP |
AC Furnace: 69000-89000; DC Furnace: 87000-104000 |
700UHP |
AC Furnace: 80000-100000; DC Furnace: 100000-120000 |
Guide to Anlysis of Electrodes Problems
Factors |
Body
Breakage |
Nipple Breakage |
Loosening |
Tip Spalling |
Butt Loss |
Oxidation |
High
consumption |
Nonconductor |
● |
● |
|
|
|
|
|
Large scrap |
● |
● |
|
|
|
|
|
High transformer capacity |
● |
● |
|
● |
● |
● |
● |
Phase Imbalance |
● |
● |
|
● |
● |
|
● |
Phase Rotation |
|
● |
● |
|
|
|
|
Excessive Vibration |
● |
● |
● |
|
|
|
|
High or low clamping pressure |
● |
|
● |
|
|
|
|
Roof electrode ports misaligned |
● |
● |
|
|
|
|
|
High secondary voltage |
● |
● |
|
● |
● |
|
|
High secondary current |
● |
● |
|
● |
● |
● |
● |
Low power factor |
● |
● |
|
● |
● |
|
● |
High oil consumption |
|
|
|
● |
● |
● |
● |
High oxygen consumption |
|
|
|
● |
● |
● |
● |
Long time from tap to tap |
|
|
|
|
|
● |
● |
Electrode Dipping |
|
|
|
|
● |
|
● |
Dirty joint make-up |
|
● |
● |
|
|
|
|
Insufficient joint tightening |
|
● |
● |
|
|
● |
|
Remark: ● indicates the left factors to be cause the electrode problems.
- Water sprayed on electrodes above roof will be avail to decrease consumption.
- Scrap preheating will be avail to decrease consumption.
To Other Destinations
Size(mm) |
Packaging |
Pcs/20’FCL |
Approx.
N.W. (kgs) |
200x1500 |
9pcs/pallet, 24pallets/20’FCL |
216 |
19,000 |
200x1800 |
9pcs/pallet, 24pallets/20’FCL |
216 |
21,500 |
225x1500 |
16 x 9pcs/pallet, 8 x 6pcs/pallet, 24pallets/20’FCL |
192 |
21,000 |
225x1800 |
14 x 9pcs/pallet, 7 x 6pcs/pallet, 21pallets/20’FCL |
168 |
21,000 |
250x1500 |
7pcs/pallet, 20pallets/20’FCL |
140 |
18,500 |
250x1800 |
7pcs/pallet, 20pallets/20’FCL |
140 |
21,500 |
300x1500 |
4pcs/pallet, 27pallets/20’FCL |
108 |
20,500 |
300x1800 |
4pcs/pallet, 22pallets/20’FCL |
88 |
20,500 |
350x1500 |
3pcs/pallet, 24pallets/20’FCL |
72 |
18,500 |
350x1800 |
3pcs/pallet, 22pallets/20’FCL |
66 |
20,500 |
350x2100 |
3pcs/pallet, 19pallets/20’FCL |
57 |
20,500 |
400x1500 |
12 x 3pcs/pallet, 8 x 2pcs/pallet, 20pallets/20’FCL |
52 |
18,200 |
400x1800 |
12 x 3pcs/pallet, 8 x 2pcs/pallet, 20pallets/20’FCL |
52 |
21,000 |
400x2100 |
4 x 3pcs/pallet, 16 x 2pcs/pallet, 20pallets/20’FCL |
44 |
21,000 |
400x2400 |
8 x 3pcs/pallet, 6 x 2pcs/pallet, 14pallets/20’FCL |
36 |
19,500 |
450x1800 |
2pcs/pallet, 20pallets/20’FCL |
40 |
21,000 |
450x2100 |
2pcs/pallet, 17pallets/20’FCL |
34 |
21,000 |
450x2400 |
6 x 3pcs/pallet, 6 x 2pcs/pallet, 12pallets/20’FCL |
30 |
20,500 |
500x1800 |
2pcs/pallet, 16pallets/20’FCL |
32 |
20,700 |
500x2100 |
2pcs/pallet, 14pallets/20’FCL |
28 |
20,500 |
500x2400 |
2pcs/pallet, 12pallets/20’FCL |
24 |
21,000 |
To Japan and USA
Size(mm) |
Packaging |
Pcs/20’FCL |
Approx.
N.W. (kgs) |
200x1500 |
9pcs/pallet, 24pallets/20’FCL |
216 |
19,000 |
200x1800 |
9pcs/pallet, 21pallets/20’FCL |
189 |
19,200 |
225x1500 |
14 x 9pcs/pallet, 8 x 6pcs/pallet, 24pallets/20’FCL |
174 |
19,000 |
225x1800 |
13 x 9pcs/pallet, 6 x 6pcs/pallet, 21pallets/20’FCL |
153 |
19,000 |
250x1500 |
7pcs/pallet, 20pallets/20’FCL |
140 |
18,200 |
250x1800 |
7pcs/pallet, 18pallets/20’FCL |
126 |
19,500 |
300x1500 |
4pcs/pallet, 25pallets/20’FCL |
100 |
19,000 |
300x1800 |
4pcs/pallet, 20pallets/20’FCL |
80 |
18,400 |
350x1500 |
3pcs/pallet, 24pallets/20’FCL |
72 |
18,500 |
350x1800 |
3pcs/pallet, 20pallets/20’FCL |
60 |
18,500 |
350x2100 |
3pcs/pallet, 17pallets/20’FCL |
51 |
18,300 |
400x1500 |
12 x 3pcs/pallet, 8 x 2pcs/pallet, 20pallets/20’FCL |
52 |
18,200 |
400x1800 |
3pcs/pallet, 16pallets/20’FCL |
48 |
19,200 |
400x2100 |
8 x 3pcs/pallet, 8 x 2pcs/pallet, 16pallets/20’FCL |
40 |
18,800 |
400x2400 |
8 x 3pcs/pallet, 6 x 2pcs/pallet, 14pallets/20’FCL |
36 |
19,500 |
450x1800 |
2pcs/pallet, 18pallets/20’FCL |
36 |
18,500 |
450x2100 |
2pcs/pallet, 15pallets/20’FCL |
30 |
18,600 |
450x2400 |
5 x 3pcs/pallet, 6 x 2pcs/pallet, 11pallets/20’FCL |
27 |
19,000 |
500x1800 |
2pcs/pallet, 15pallets/20’FCL |
30 |
19,200 |
500x2100 |
2pcs/pallet, 13pallets/20’FCL |
26 |
19,000 |
500x2400 |
2pcs/pallet, 11pallets/20’FCL |
22 |
19,200 |
Quality Control and Inspection
Except for quality control system according to ISO9002 in our manufacturers, our inspectors examine each pieces of electrodes before shipment. Our inspection standard is as follows:
1. Length of electrodes: No more than 8% short length electrodes in each shipment.
2. Nipples for electrode of dia 250 mm & above are supplied with pitch plug unless specified otherwise.
3. Electrodes of dia 250 mm & above are prefitted with nipple prior to dispatch unless specified otherwise.
4. All nipples are supplied with Dust grooves unless specified otherwise.
5. All electrodes of dia. 250mm & above have secured protective end caps.
6. All electrodes have proper ID marked on the surface with paint.
7. On each length end of the crates, paper-size shipping marks to be printed clearly.
8. All electrodes are packed without plastic film unless specific otherwise.
9. Any surface defect should be taken a picture by inspector, the picture should be mailed to Manager.
10. Any sockets and nipples defect should be taken a picture by inspector, the picture should be mailed to Manager.
11. No less than 20% of electrodes sockets of dia. 350mm and 400mm are examined concentric degree.
12. All electrodes sockets of dia. 450mm and above are examined concentric degree.
13. A packing list in electronic format should be sent to customer with all electrode shipments. The packing lists contain the following information for both electrodes and nipples: customer order number, weight per piece, resistivity and bulk density of each piece.
Standared Size of Electrodes and Tapered Nipples
Diameter (mm) |
Standard Nipple size |
Diameter Tolerance |
Nominal Length |
4 T.P.I Nipple |
3 T.P.I Nipple |
Maximum (mm) |
Minimum (mm) |
Low Spot (mm) |
Supplied (mm) |
Dia (mm) |
Length (mm) |
Dia (mm) |
Length (mm) |
75 |
46.04 |
76.20 |
- |
- |
78 |
73 |
72 |
1000,1200 |
100 |
69.85 |
101.60 |
- |
- |
103 |
98 |
97 |
1000,1200,1500 |
130 |
79.38 |
127.00 |
- |
- |
132 |
127 |
126 |
1000,1200,1500 |
150 |
92.08 |
139.70 |
- |
- |
154 |
149 |
146 |
1200,1500,1800 |
175 |
107.95 |
165.10 |
- |
- |
179 |
174 |
171 |
1200,1500,1800 |
200 |
122.24 |
177.80 |
- |
- |
205 |
200 |
197 |
1200,1500,1800 |
225 |
139.70 |
177.80 |
- |
- |
230 |
225 |
222 |
1500,1800 |
250 |
152.40 |
190.50 |
155.58 |
220.10 |
256 |
251 |
248 |
1500,1800 |
300 |
177.80 |
215.90 |
177.17 |
270.90 |
307 |
302 |
299 |
1500,1800,2100 |
350 |
203.20 |
254.00 |
215.90 |
304.80 |
357 |
352 |
349 |
1500,1800,2100 |
400 |
222.25 |
304.80 |
215.90 |
304.80 |
409 |
403 |
400 |
1500,1800,2100,2400,2700 |
400 |
222.25 |
355.60 |
241.30 |
338.70 |
409 |
403 |
400 |
1500,1800,2100,2400,2700 |
450 |
241.30 |
304.80 |
24I.30 |
304.80 |
460 |
454 |
451 |
1800, 2100, 2400, 2700 |
450 |
241.30 |
355.60 |
273.05 |
355.60 |
460 |
454 |
451 |
1800, 2100, 2400, 2700 |
500 |
269.88 |
355.60 |
273.05 |
355.60 |
511 |
505 |
502 |
1800, 2100, 2400, 2700 |
500 |
269.88 |
457.20 |
298.45 |
372.60 |
511 |
505 |
502 |
1800, 2100, 2400, 2700 |
550 |
298.45 |
355.60 |
298.45 |
372.50 |
562 |
556 |
553 |
1800, 2100, 2400, 2700 |
550 |
298.45 |
457.20 |
- |
- |
562 |
556 |
553 |
1800, 2100, 2400, 2700 |
600 |
317.5 |
355.60 |
- |
- |
613 |
607 |
604 |
1800, 2100, 2400, 2700 |
600 |
317.5 |
457.20 |
- |
- |
613 |
607 |
604 |
1800, 2100, 2400, 2700 |
650 |
355.60 |
457.20 |
- |
- |
657 |
663 |
655 |
2400, 2700 |
650 |
355.60 |
558.80 |
- |
- |
657 |
663 |
655 |
2400, 2700 |
700 |
374.65 |
457.20 |
- |
- |
714 |
708 |
705 |
2400, 2700 |
700 |
374.65 |
558.80 |
- |
- |
714 |
708 |
705 |
2400, 2700 |
(II ) Length Tolerance:
Nominal Length (mm) |
Full Length (mm) |
Short Length (mm) |
Maximum |
Minimum |
Maximum |
Minimum |
1000 |
+ 41 |
- 60 |
- 60 |
- 187 |
1200 |
+ 45 |
- 82 |
- 82 |
- 235 |
1500 |
+ 100 |
- 78 |
- 78 |
- 255 |
1800 |
+ 105 |
- 98 |
- 98 |
- 225 |
2100 |
,
+ 110 |
- 119 |
- 119 |
- 271 |
2400 |
+ 115 |
- 114 |
- 114 |
- 266 |
2700 |
+ 195 |
- 160 |
- 160 |
- 287 |
Each shipme, nt may contain up to 8% Short Length Electrodes
HD
Specification |
Unit |
Nominal Diameter (mm) |
Matching Nipp, , , , , les |
|
|
50-150 |
175-300 |
350-400 |
450-500 |
|
Electrical Resistivity |
μΩm |
6.5-7.5 |
7.0-8.0 |
7.5-8.5 |
7.5-8.5 |
5.5-6.5 |
Bending Strength |
Mpa |
10-14 |
10-14 |
9.0-13 |
8.0-12 |
14-18 |
Flexural Strength |
GPa |
8.0-12 |
8.0-12 |
8.0-12 |
8.0-12 |
9.0-14 |
Bulk Density |
g/cm3 |
1.62-1.72 |
1.62-1.72 |
1.60-1.70 |
1.60-1.70 |
1.72-1.82 |
Ash |
% |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
CTE(100-600°С) |
10-6/°С |
2.0-2.4 |
2.0-2.4 |
2.0-2.4 |
2.0-2.4 |
1.8-2.2 |
HP
Specification |
Unit |
Nominal Diameter (mm) |
Matching Nipples |
|
|
50-150 |
175-300 |
350-400 |
450-500 |
|
Electrical Resistivity |
μΩm |
5.5-6.5 |
5.5-6.5 |
5.8-6.8 |
6.0-7.0 |
3.8-5.0 |
Bending Strength |
Mpa |
11-15 |
11-15 |
10.5-15 |
10.5-15 |
15-20 |
Flexural Strength |
GPa |
8.0-11 |
8.0-11 |
8.0-11 |
8.0-11 |
10-14 |
Bulk Density |
g/cm3 |
1.62-1.72 |
1.62-1.72 |
1.60-1.70 |
1.60-1.70 |
1.72-1.82 |
Ash |
% |
0.1-0.3 |
0.1-0.3 |
0.1-0.3 |
0.1-0.3 |
0.1-0.3 |
CTE(100-600°С) |
10-6/°С |
1.8-2.2 |
1.8-2.2 |
1.8-2.2 |
1.8-2.2 |
1.4-1.8 |
RP
Specification |
Unit |
Nominal Diameter (mm) |
Matching Nipples |
|
|
50-150 |
175-300 |
350-400 |
450-500 |
|
Electrical Resistivity |
μΩm |
7.0-8.0 |
7.5-8.5 |
8.0-9.0 |
8.5-9.5 |
6.0-7.0 |
Bending Strength |
Mpa |
10-14 |
10-14 |
9.0-13 |
8.0-12 |
14-18 |
Flexural Strength |
GPa |
8.0-12 |
8.0-12 |
8.0-12 |
8.0-12 |
9.0-14 |
Bulk Density |
g/cm3 |
1.56-1.62 |
1.56-1.62 |
1.55-1.60 |
1.54-1.58 |
1.70-1.80 |
Ash |
% |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
0.2-0.4 |
CTE(100-600°С) |
10-6/°С |
2.0-2.4 |
2.0-2.4 |
2.0-2.4 |
2.0-2.4 |
1.8-2.2 |
SHP
Specification |
Unit |
Nominal Diameter (mm) |
Matching Nipples |
|
|
200-300 |
350-400 |
450-500 |
|
Electrical Resistivity |
μΩm |
4.5-5.8 |
4.5-6.0 |
4.5-6.2 |
3.0-4.5 |
Bending Strength |
Mpa |
11-15 |
10.5-15 |
10.5-15 |
16-25 |
Flexural Strength |
GPa |
9.0-12 |
9.0-12 |
9.0-12 |
10-16 |
Bulk Density |
g/cm3 |
1.65-1.75 |
1.65-1.75 |
1.65-1.75 |
1.75-1.85 |
Ash |
% |
0.1-0.3 |
0.1-0.3 |
0.1-0.3 |
0.1-0.2 |
CTE(100-600°С) |
10-6/°С |
1.4-1.8 |
1.4-1.8 |
1.4-1.8 |
1.0-1.3 |
UHP
Specification |
Unit |
Nominal Diameter (mm) |
Matching Nipples |
|
|
300-400 |
450-500 |
550-700 |
|
Electrical Resistivity |
μΩm |
4.0-5.5 |
4.0-5.5 |
4.2-5.8 |
2.8-3.8 |
Bending Strength |
Mpa |
11-15 |
10.5-15 |
10.5-15 |
18-25 |
Flexural Strength |
GPa |
9.0-14 |
9.0-14 |
9.0-14 |
10-18 |
Bulk Density |
g/cm3 |
1.65-1.75 |
1.65-1.75 |
1.65-1.75 |
1.76-1.86 |
Ash |
% |
0.1-0.3 |
0.1-0.3 |
0.1-0.3 |
0.1-0.2 |
CTE(100-600°С) |
10-6/°С |
1.2-1.5 |
1.2-1.5 |
1.2-1.5 |
0.9-1.2 |
|