700-800mm UHP graphite electro

700-800mm UHP graphite electrode,UHP Graphite Electrodes,Oxidation Resistance Graphite Electrode,UHP Graphite Electrodes Manufacturer UHP Graphite Electrodes Oxidation Resistance Graphite Electrode UHP Graphite Electrodes Manufacturer Electric resistivity : 4.5-5.8 Bending strength: >=10.0 Elastic Modulus: <=14 Bulk density:1.68-1.74 Ash:   <=0.3 CTE:  1.10-1.50 Ultra high power graphite electrode is a graphite electrode with allowable current density greater than 25A/cm2 . UHP graphite electrode mainly used in ultra-high power steelmaking electric arc furnace. Physical and Chemical Index of Ultra high Power  Graphite Electrode Item  Unit UHP 300～500 550～600 700～800 Electric Resistivity  Electrode uΩ.m 4.6～6.2 4.5～6.0 4.5～5.8 Nipple 3.5～5.0 3.4～4.5 3.3～4.3 Bending Strength Electrode MPa ≥10.5 ≥10.0 ≥10.0 Nipple ≥20.0 ≥22.0 ≥23.0 Modulus of Elasticity Electrode GPa ≤14.0 ≤14.0 ≤14.0 Nipple ≤20.0 ≤22.0 ≤22.0 Bulk Density Electrode G/cm3 1.66～1.73 1.68～1.74 Nipple 1.75～1.82 1.78～1.85 Ash Content Electrode % ≤0.3 Nipple The Coefficient of Thermal Expansion(CTE) Electrode 10-6/℃ 1.20～1.50 1.10～1.50 Nipple 1.10～1.40 1.00～1.30 UHP Graphite Electrode Current Carrying Capacity Norminal Diameter UHP Current Carrying Capacity Current Density inch mm A A/cm2 12 300 *～* 20～30 14 350 *～* 20～30 16 400 *～* 19～30 18 450 *～* 19～27 20 500 *～* 18～27 22 550 *～* 18～27 24 600 *～* 18～26 28 700 *～* 18～25 32 800 ／ ／ Tolerance of Graphite Electrode Diameter and Length（mm)  Nominal Diameter Actural diameter Length in mm max min Black surface min 12 300 307 302 299 1800/2000 14 350 358 352 349 1800/2000/2200 16 400 409 403 400 1800/2000/2200 18 450 460 454 451 1800/2000/2200....

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