High-power graphite electrodes. Graphite electrodes with a current density of 18-25A/cm2 are allowed, and they are mainly used in high-power electric arc furnaces for steelmaking.
Physical and chemical indices of HP graphite electrode
| Specific
Resistance (ฮผฮฉm) |
Young’s
Modulus (Gpa) |
Bending
Strength (Mpa) |
Buld
Density (g/cmยณ) |
Ash
Content (%) |
Coefficient
of thermal expansion (100-600โ) |
|||||||
| Inspection
standards |
YB/T 120 | GB 3074.2 | GB3074.1 | YB/T 119 | GB1429 | GB 3074.4 | ||||||
| Specification | Max | Min | Max | |||||||||
| Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | Electrode | Nipple | |||
| High
Power |
200-300 | 5.2-6.5 | 4.8-5.2 | 11 | 14 | 11 | 16 | 1.64-1.7 | 1.73-1.79 | 0.3 | 2.4 | 2.2 |
| 350-500 | 5.2-6.5 | 4.8-5.2 | 11 | 14 | 11 | 16 | 1.64-1.7 | 1.73-1.79 | 2.4 | 2.2 | ||
| 550-650 | 5.5-6.8 | 5.0-5.5 | 11 | 14 | 10.5 | 16 | 1.64-1.7 | 1.73-1.79 | 2.4 | 2.2 | ||
| 700-800 | 5.5-6.8 | 5.0-5.5 | 11 | 14 | 10.5 | 16 | 1.64-1.7 | 1.73-1.79 | 2.4 | 2.2 | ||
Allowableย currentย loadย of High Power
| Nominal
diameter mm |
||||
| Current Load A | Currentย density
A/cmยฒ |
Currentย load A | Currentย density
A/cmยฒ |
|
| 200 | 6900-9000 | 22-30 | 8500-10000 | 27-37 |
| 250 | 10000-13000 | 20-27 | 12500-16000 | 25-34 |
| 300 | 13600-18000 | 18-25 | 17000-22500 | 23-31 |
| 350 | 17500-24500 | 18-25 | 22000-31000 | 23-31 |
| 400 | 21000-31000 | 17-24 | 26000-39000 | 21-30 |
| 450 | 26000-39000 | 16-24 | 32500-49000 | 20-30 |
| 500 | 32000-48000 | 16-24 | 40000-60000 | 20-30 |
| 550 | 36000-55000 | 15-23 | 45000-69000 | 19-29 |
| 600 | 44000-61000 | 15-23 | 55000-84000 | 19-29 |
| 650 | 49000-76000 | 15-23 | 63000-96000 | 19-29 |
| 700 | 57000-90000 | 15-23 | 73000-110000 | 19-29 |
| 780 | 70000-100000 | 15-23 | 90000-130000 | 19-29 |
Our advantages
โย We can provide factory price with trading company services
โย We control production quality very strictly to keep none compensation
โย We guarantee 24 hours response and 48 hours solution providing service
โย We accept small order quantity before formal cooperation
โย We offer good quality with reasonable price, faster delivery with better payment terms
โย We have professional teams and the factory
โย It’s very important for a company to be honest in the process of trading and so do we
Our history
Established in 1998, Runfei Steel Group has developed into a large-scaled enterprise, located in the city of Tianjin, which is the economic center and major port in north China. With convenient transportation advantage of Tianjin, intellectual marketing network, powerful system of storage, processing and distribution, and good reputation, Runfei has successfully set up between miles and clients.
FAQ
Q1. What kind of terms of payment?
A:T/T, L/C are available.
Q2. What grads of the product can you offer?
A:These products can be customized according to your requirement.
Q3. Is free sample available?
A:Yes, free sample is available
If you are interested in our products please contact me. My WhatsApp isย +8617694942340, or you can fill in the feedback as below, I will contact you as soon as possible.
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