UHP Graphite Electrode for Titanium Steel
Electric furnace steelmaking mill is the largest user of graphite electrodes. Graphite electrodes used in steelmaking accounts for 70%-80% of the total graphite electrodes production. Graphite electrodes are used to conduct electric current into electric furnace, electric arcs generated between electrodes end and loaded materials can release large amount of heat for high temperature smelting.
Physical & chemical properties of UHP graphite electrode and nipples
Item | Unit | Nominal diameter (mm) | ||||
UHP graphite electrode | ||||||
350～500 | 550～750 | |||||
Guaranteed | Typical | Guaranteed | Typical | |||
lSR ≤ | E | UΩ*m | 6.3 | 5.0～6.0 | 5.8 | 4.8～5.5 |
N | 5.3 | 3.8～4.5 | 4.3 | 3.5～4.1 | ||
Flexural | E | MPA | 10.5 | 11.0～13.0 | 10.0 | 10.0～13.0 |
N | 20.0 | 20.0～25.0 | 23.0 | 24.0～30.0 | ||
Elastic modulus≤ | E | GPA | 14 | 8.0～12.0 | 14.0 | 7.0～10.0 |
N | 20.0 | 12.0～16.0 | 22.0 | 16.0～21.0 | ||
Bulk density ≥ | E | G/CM3 | 1.66 | 1.68～1.73 | 1.68 | 1.69～1.73 |
N | 1.75 | 1.76～1.82 | 1.78 | 1.79～1.84 | ||
CTE(100 ℃-600℃) | E | 10-6/℃ | 1.5 | 1.3～1.5 | 1.5 | 1.3～1.5 |
N | 1.4 | 1.0～1.3 | 1.3 | 1.0～1.3 | ||
ASH ≤ | % | 0.5 | 0.2～0.4 | 0.5 | 0.2～0.4 | |
Features
♦ Good electrical conductivity
♦ Good thermal conductivity
♦ High resistance to oxidation
♦ Good stable thermal shock
♦ Precise machining accuracy
♦ High anti-oxidation capability
Section and plan view of electric ARC furnace in titanium steel
Note on Installation and use of UHP graphite electrode in the titanium steel factory
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