Graphite electrode specifications
| Nominal diameter | Actual diameter | Nominal length | Allowable deviation | |||
| mm | inch | max | min | mm | inch | mm |
| 75 | 3 | 77 | 74 | 1000 | 40 | +50/-75 |
| 100 | 4 | 102 | 99 | 1200 | 48 | +50/-75 |
| 150 | 6 | 154 | 151 | 1600 | 60 | ±100 |
| 200 | 8 | 204 | 201 | 1600 | 60 | ±100 |
| 225 | 9 | 230 | 226 | 1600/1800 | 60/72 | ±100 |
| 250 | 10 | 256 | 252 | 1600/1800 | 60/72 | ±100 |
| 300 | 12 | 307 | 303 | 1600/1800 | 60/72 | ±100 |
| 350 | 14 | 357 | 353 | 1600/1800 | 60/72 | ±100 |
| 400 | 16 | 408 | 404 | 1800/2000 | 72/79 | ±100 |
| 450 | 18 | 459 | 455 | 1800/2000 | 72/79 | ±100 |
| 500 | 20 | 510 | 506 | 1800/2000 | 72/79 | ±100 |
| 550 | 22 | 562 | 556 | 1800/2000 | 72/79 | ±100 |
| 600 | 24 | 613 | 607 | 2400/2700 | 96/106 | ±100 |
| 700 | 28 | 712 | 707 | 2400/2700 | 96/106 | ±100 |
How are Graphite Electrodes used in Metal Production, and why are they essential?
Graphite Electrodes are a fundamental component in metal production, particularly in the steelmaking and alloy manufacturing industries. They are primarily used in electric arc furnaces (EAFs), where they serve as the conductive medium for transferring high electrical currents to generate the intense heat-often exceeding 3,000°C-needed to melt scrap metal, direct reduced iron (DRI), and other raw materials. The high temperature produced by the electric arc between the electrode and the metal charge enables the melting and blending of metals to produce high-quality steel and various ferroalloys.
Graphite is the material of choice for these electrodes due to its exceptional electrical conductivity, high thermal resistance, and ability to maintain structural integrity under extreme thermal and mechanical stress. In metal production, the performance of graphite electrodes directly impacts efficiency, energy consumption, and product quality. High-quality graphite electrodes ensure stable arc performance, minimize energy loss, and reduce electrode consumption, all of which contribute to lower production costs and improved throughput. Their durability also minimizes downtime caused by breakage or wear, supporting continuous operation in high-capacity facilities.
Additionally, graphite electrodes allow for precise control over the melting process, which is essential for producing metals with specific compositions and properties. Whether in large-scale steel plants or specialized alloy production facilities, graphite electrodes are indispensable for achieving efficient, reliable, and high-quality metal production. Their role in enabling modern metallurgical processes underscores their importance as a critical industrial material driving global manufacturing and construction industries.
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