China wholesale Graphite Electrode Rp 1000mm Nipple - UHP Graphite Electrode for EAF/LF – MORKIN
China wholesale Graphite Electrode Rp 1000mm Nipple - UHP Graphite Electrode for EAF/LF – MORKIN Detail:
Feature
1.Resistivity is lower, allowing larger current density
2.Smaller linear expansion coefficient
3.Excellent thermal shock resistance.
4.Good electric conduction
5.High temperature resistance and good stability
6.Good chemical stability
application
(1) For steel making in EAF/LF
Graphite electrode is mainly used in Electric arc furnace for steel smelting. When graphite electrode is working in EAF, the current will be introduced by graphite electrode into the furnace, and there will be heat source which is generated by electric arc between electrode end and furnace charge for smelting.
(2) For producing metallic silicon and yellow phosphorus in submerged arc furnace
Some carbon electrode with large size (eg.700mm-1400mm) is used for producing metallic silicon and yellow phosphorus in submerged arc furnace. The lower part of the carbon electrode is buried in the charge, forms an arc in the charge layer, the material will be smelted by the heat energy generated by the resistance of the charge. For example, about 100kg of graphite electrode is consumed for 1 ton of metallic silicon.
(3)For producing corundum in electric furnace
(4)Used for processing special-shaped graphite products
The blank of graphite electrode is also used to process various special-shaped graphite prod
The Production Processes of Graphite Electrode
The Chemical and Physical Indexes of UHP Graphite Electrode
| Item | Unit | HP | |
| φ200-φ700mm | |||
| Resistivity | Electrode | μΩm | 5.8-6.6 |
| Nipple | 3.5-4.0 | ||
| Modulus of Rupture | Electrode | Mpa | 10.0-13.0 |
| Nipple | 20.0-23.0 | ||
| Young’s Modulus | Electrode | GPa | 8.0-12.0 |
| Nipple | 14.0-16.0 | ||
| Bulk Density | Electrode | g/cm3 | 1.64-1.68 |
| Nipple | 1.75-1.80 | ||
| CTE (100-600℃) | Electrode | 10-6/℃ | 1.6-1.9 |
| Nipple | 1.1-1.4 | ||
| Ash | % | 0.3 | |
The Current Carrying Capacity of Graphite Electrode
|
Nominal Diameter |
RP |
HP |
UHP |
||||
|
Millimeter |
Inch |
Current Carrying Capacity |
Current Density |
Current Carrying Capacity |
Current Density |
Current Carrying Capacity |
Current Density |
|
mm |
inch |
A |
A/cm2 |
A |
A/cm2 |
A |
A/cm2 |
|
75 |
3’’ |
1000-1400 |
22-31 |
|
|
||
|
100 |
4’’ |
1500-2400 |
19-30 |
||||
|
130 |
5’’ |
2200-3400 |
17-26 |
||||
|
150 |
6’’ |
3000-4500 |
16-25 |
||||
|
200 |
8’’ |
5000-6900 |
15-21 |
5500-6900 |
18-25 |
||
|
250 |
10’’ |
7000-10000 |
14-20 |
6500-10000 |
18-25 |
8100-12200 |
20-30 |
|
300 |
12’’ |
10000-13000 |
14-18 |
13000-17400 |
17-24 |
15000-22000 |
20-30 |
|
350 |
14’’ |
13500-18000 |
14-18 |
17400-24000 |
17-24 |
20000-30000 |
20-30 |
|
400 |
16’’ |
18000-23500 |
14-18 |
21000-31000 |
16-24 |
25000-40000 |
19-30 |
|
450 |
18’’ |
22000-27000 |
13-17 |
25000-40000 |
15-24 |
32000-45000 |
19-27 |
|
500 |
20’’ |
25000-32000 |
13-16 |
30000-48000 |
15-24 |
38000-55000 |
18-27 |
|
550 |
22’’ |
28000-34000 |
12-14 |
34000-53000 |
14-22 |
45000-65000 |
18-27 |
|
600 |
24’’ |
30000-36000 |
11-13 |
38000-58000 |
13-21 |
50000-75000 |
18-26 |
|
650 |
26’’ |
32000-39000 |
10-12 |
41000-65000 |
12-20 |
60000-85000 |
18-25 |
|
700 |
28’’ |
34000-42000 |
9.0-11 |
45000-72000 |
12-19 |
70000-120000 |
18-30 |
Dimension of 4TPI Nipples and Socket
|
Nominal Diameter |
Nipple Type |
Sizes of Nipple (mm) |
Sizes of Socket |
Thread |
|||||
|
mm |
inch |
D |
L |
d2 |
l
|
d1 |
H |
mm |
|
|
Deviation (-0.5-0) |
Deviation (-1-0) |
Deviation (-5-0) |
Deviation (0-0.5) |
Deviation (0-7) |
|||||
|
200 |
8’’ |
122T4N |
122.24 |
177.80 |
80 |
＜7 |
115.92 |
94.90 |
6.35 |
|
250 |
10’’ |
152T4N |
152.40 |
190.50 |
108.00 |
146.08 |
101.30 |
||
|
300 |
12’’ |
177T4N |
177.80 |
215.90 |
129.20 |
171.48 |
114.00 |
||
|
350 |
14’’ |
203T4N |
203.20 |
254.00 |
148.20 |
196.88 |
133.00 |
||
|
400 |
16’’ |
222T4N |
222.25 |
304.80 |
158.80 |
215.93 |
158.40 |
||
|
400 |
16’’ |
222T4L |
222.25 |
355.60 |
150.00 |
215.93 |
183.80 |
||
|
450 |
18’’ |
241T4N |
241.30 |
304.80 |
177.90 |
234.98 |
158.40 |
||
|
450 |
18’’ |
241T4L |
241.30 |
355.60 |
169.42 |
234.98 |
183.80 |
||
|
500 |
20’’ |
269T4N |
269.88 |
355.60 |
198.00 |
263.56 |
183.80 |
||
|
500 |
20’’ |
269T4L |
269.88 |
457.20 |
181.08 |
263.56 |
234.60 |
||
|
550 |
22’’ |
298T4N |
298.45 |
355.60 |
226.58 |
292.13 |
183.80 |
||
|
550 |
22’’ |
298T4L |
298.45 |
457.20 |
209.65 |
292.13 |
234.60 |
||
|
600 |
24’’ |
317T4N |
317.5 |
355.60 |
245.63 |
311.18 |
183.80 |
||
|
600 |
24’’ |
317T4L |
317.5 |
457.20 |
228.70 |
311.18 |
234.60 |
||
|
650 |
26’’ |
355T4N |
355.60 |
457.20 |
266.79 |
349.28 |
234.60 |
||
|
650 |
26’’ |
355T4L |
355.60 |
558.80 |
249.86 |
349.28 |
285.40 |
||
|
700 |
28’’ |
374T4N |
374.65 |
457.20 |
285.84 |
368.33 |
234.60 |
||
|
700 |
28’’ |
374T4L |
374.65 |
558.80 |
268.91 |
368.33 |
285.40 |
||
|
750 |
30’’ |
406T4N |
406.4 |
584.20 |
296.42 |
400.08 |
298.10 |
||
|
750 |
30’’ |
406T4L |
406.4 |
609.60 |
292.19 |
400.08 |
310.80 |
||
|
800 |
32’’ |
431T4N |
431.8 |
635.00 |
313.36 |
425.48 |
325.50 |
||
|
800 |
32’’ |
431T4L |
431.8 |
685.80 |
304.89 |
425.48 |
348.90 |
||
Dimension of 3TPI Nipples and Socket
|
Nominal Diameter |
Nipple Type |
Sizes of Nipple (mm) |
Sizes of Socket |
Thread |
|||||
|
mm |
inch |
D |
L |
d2 |
l
|
d1 |
H |
mm |
|
|
Deviation (-0.5-0) |
Deviation (-1-0) |
Deviation (-5-0) |
Deviation (0-0.5) |
Deviation (0-7) |
|||||
|
250 |
10’’ |
155T3N |
155.57 |
220.00 |
103.80 |
＜7 |
147.14 |
116.00 |
6.35 |
|
300 |
12’’ |
177T3N |
177.16 |
270.90 |
116.90 |
168.73 |
141.50 |
||
|
350 |
14’’ |
215T3N |
215.90 |
304.80 |
150.00 |
207.47 |
158.40 |
||
|
400 |
16’’ |
215T3L |
215.90 |
304.80 |
150.00 |
207.47 |
158.40 |
||
|
400 |
16’’ |
241T3N |
241.30 |
338.70 |
169.80 |
232.87 |
175.30 |
||
|
450 |
18’’ |
241T3L |
241.30 |
338.70 |
169.80 |
232.87 |
175.30 |
||
|
450 |
18’’ |
273T3N |
273.05 |
355.60 |
198.70 |
264.62 |
183.80 |
||
|
500 |
20’’ |
273T3L |
273.05 |
355.60 |
198.70 |
264.62 |
183.80 |
||
|
500 |
20’’ |
298T3N |
298.45 |
372.60 |
221.30 |
290.02 |
192.20 |
||
|
550 |
22’’ |
298T3N |
298.45 |
372.60 |
221.30 |
290.02 |
192.20 |
||
3TPI Thread Detail
4TPI Thread Detail
Reference of Torque
|
Diameter |
mm |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
650 |
700 |
|
inch |
10’’ |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
26 |
28 |
|
|
Torque (N.m) |
400-450 |
500-650 |
700-950 |
850-1150 |
1050-1400 |
1300-1700 |
1850-2400 |
2300-3000 |
3900-4300 |
4400-5200 |
|
Product detail pictures:
Related Product Guide:
owing to excellent assistance, a variety of high quality products and solutions, aggressive costs and efficient delivery, we take pleasure in an excellent popularity amongst our customers. We are an energetic business with wide market for China wholesale Graphite Electrode Rp 1000mm Nipple - UHP Graphite Electrode for EAF/LF – MORKIN , The product will supply to all over the world, such as: Nepal, Indonesia, Ecuador, To achieve reciprocal advantages, our company is widely boosting our tactics of globalization in terms of communication with overseas customers, fast delivery, the best quality and long-term cooperation. Our company upholds the spirit of "innovation, harmony, team work and sharing, trails, pragmatic progress". Give us a chance and we'll prove our capability. With your kind help, we believe that we can create a bright future with you together.
By Judith from Pakistan - 2017.10.27 12:12
This supplier offers high quality but low price products, it is really a nice manufacturer and business partner.
By Gemma from Spain - 2017.09.22 11:32
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