Product Description
Φ40~600MM, RP, HP, UHP grade Graphite electrode For steel-making
| 92 | Nominal Diameter
mm
| unit | Length mm Φ
| Lack ruler length
mm
| | Max | Min | The min part of black skin | | 75 | 77 | 74 | 72 | 1000±100 | -255 | | 100 | 102 | 99 | 97 | 1200±100 | | 130 | 131 | 128 | 126 | 1200±100 | -275 | | 150 | 154 | 151 | 148 | 1600±100 | | 200 | 204 | 201 | 198 | 1600±100 | | 250 | 256 | 252 | 249 | (1600.1800)±100 | | 300 | 307 | 303 | 300 | (1600.1800)±100 | | 350 | 357 | 353 | 350 | (1600.1800)±100 | | 400 | 408 | 404 | 401 | (1800.2000)±100 | | 450 | 459 | 455 | 452 | (1800.2000)±100 | | 500 | 510 | 506 | 503 | (1800.2000)±100 |
|
|
| Properties of NP Graphite Electrode |
| Item | Unit | Nominal diameter(mm)mm
| | 75-130 | 150-200 | 250-350 | 400-500 | Electric Resistively
≤electrodes nipple
| μΩ·m | 8.5
7.0 | 8.5
7.0 | 9.0
7.0 | 9.0
7.0 | Banding strength
≤electrodes nipple
| MPa | 11
13.5 | 11
13.5 | 9.5
13.5 | 8.5
13.5 | Elastic meduluc
≤electrodes nipple
| Gpa | 8.6
11.5 | 8.6
11.5 | 8.6
11.5 | 8.6
11.5 | Bulk density
≤electrodes nipple | g/cm3 | 1.62
1.68 | 1.58
1.67 | 1.56
1.72 | 1.56
1.72 | | Ash≤electrodes nipple | % | 0.4 | 0.4 | 0.4 | 0.4 | CTE≤electrodes nipple
| 10 -6 L/ ºC | 2.2
2.4 | 2.2
2.4 | 2.4
2.6 | 2.4
2.6 |
|
UHP Grade Physical and chemical index
ltem
| unit
| Nominal Diameter (mm) |
Industry Standard
| Typical Values
|
300-400
| 450-550
| 350-400
| 450-550
|
Electric Resistivity
| Electrode
| μΩ· m
| ≤ 6.2
| ≤ 6.5
| 4.6-6.0
| 4.8-6.2
|
Nipple
| ≤ 5.5
| ≤ 5.5
| 3.5-4.5
| 3.5-4.5
|
Bending strength
| Electrode
| Mpa
| ≥ 10.5
| ≥ 10.0
| ≥ 11.0
| ≥ 11.0
|
Nipple
| ≥ 16.0
| ≥ 16.0
| ≥ 18.0
| ≥ 18.0
|
Elastic modulus
| Electrode
| Gpa
| ≤ 14.0
| ≤ 14.0
| ≤ 13.0
| ≤ 13.0
|
Nipple
| ≤ 18.0
| ≤ 18.0
| ≤ 17.0
| ≤ 17.0
|
Bulk density
| Electrode
| g/cm 3
| ≥ 1.65
| ≥ 1.64
| 1.66-1.72
| 1.65-1.72
|
Nipple
| ≥ 1.72
| ≥ 1.70
| 1.75-1.82
| 1.75-1.82
|
Ash
| Electrode
| %
| ≤ 0.3
| ≤ 0.3
| ≤ 0.3
| ≤ 0.3
|
Nipple
|
CTE
(100-600) ºC
| Electrode
| 10 -6 L/ ºC
| ≤ 1.5
| ≤ 1.5
| 1.20-1.40
| 1.20-1.40
|
Nipple
| ≤ 1.4
| ≤ 1.4
| 1.10-1.30
| 1.10-1.30
|
Inquiry Basket (
