UHP Graphite Electrode for Steel Making
Graphite electrode steel making is to input electric energy in to the arc steelmaking furnace through graphite electrode , and the arc occurring between the electrode end and the charge is used as the heat source for steelmaking . 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 of UHP Graphite Electrode
►Very high electricity load capacity, current intensity is usually above 25A/cm2.
►Bulk density is strictly controlled to have the best thermal shock resistance.
►Low specific resistance, excellent electrical conductivity, so the energy loss is very small and no electric arc generates at body part.
►Good high temperature mechanical strength, is not easy to rupture during working.
►No contamination to the processed steel, only CO or CO2 gas are produced during oxidization.
►Very low thermal expansion coefficient.
►Long production cycle and complex processing craft.
Steelmaking in an electric arc furnace (EAF) of UHP Graphite electrode
Certificate UHP graphite electrode
Packing and Shipping
Finished Graphite Electrodes are packed according to customers' requirements, shipped via containers or trucks, and provided with perfect after-sales service.
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