GRAPHITE ELECTRODE

Ultra-high power graphite electrode provided by Xingtai Lingte Technology Co., Ltd. is mainly specialized for electric arc furnace and ladle refining furnace. It is highly praised by the customers as the rare superior type of ultra-high power graphite electrode with optimal functional quality in the industry. The graphite electrodes provided by Xingtai Lingte Technology Co., Ltd  are produced using the most advanced technologies, in strict accordance with world standards and have reached the world-class quality standard .  UHP electrode standard sizes range between diameter 350~700mm with lengths of 1600~2700mm. CHARACTERISTICS OF ULTRA-HIGH POWER GRAPHITE ELECTRODES:  Superior electric conductivity  World-class quality  Complete ex-factory inspection  Rate of finished products up to 99%  Complete use instructions and all-round customer service  Unconditional return is provided in case of quality problem by Xingtai Lingte Technoloy Co.,Ltd to completely eliminate your worries!  PHYSICAL & CHEMICAL INDEX ITEMS TYPE ULTRA HIGH POWER Ø200-500 Ø550-700 Resistance μΩ.m (Max) Electrode 5.5 Nipple 4.5 Density g/cm³ (Min) Electrode 1.68 1.7 Nipple 1.8 Flexure Strength Mpa (Min) Electrode 11.0 Nipple 20.0 Elastic Modulus Gpa (Max) Electrode 14.0 Nipple 22.0 Ash % (Max) Electrode 0.1 Nipple 0.1 CTE (100-600℃) 100¯⁶/℃(Max) Electrode 1.5 Nipple 1.4 CURRENT LOAD NOMINAL DIAMETER ULTRA-HIGH POWER ELECTRODE MM INCH CURRENT LOAD (A) CURRENT DENSITY (A/CM²) 250 10 8100-12200 20-30 300 12 15000-22000 20-30 350 14 20000-30000 20-30 400 16 25000-40000 19-30 450 18 32000-45000 19-30 500 20 38000-55000 18-27 550 22 45000-65000 18-27 600 24 50000-75000 18-26 650 25 60000-85000 18-25 700 28 70000-120000 18-30 GRAPHITE ELECTRODE SIZE & TOLERANCE DIAMETER (MM) LENGTH (MM) NOMINAL DIAMETER ACTUAL DIAMETER NOMINAL LENGTH TOLERANCE SHORT LENGTH INCH MM MAX MIN ROUGH SPOT 3 75 78 73 72 1000/1200/1400/1600 ±100 -275 4 100 103 98 97 1000/1200/1400/1600 5 130 132 127 126 1000/1200/1400/1600 6 150 154 149 146 1200/1400/1600/1800 7 175 179 174 171 1200/1400/1600/1800 8 200 205 200 197 1600/1800 9 225 230 225 222 1600/1800 10 250 256 251 248 1600/1800/2000 12 300 307 302 299 1600/1800/2000/2200 14 350 358 352 349 1600/1800/2000/2200 16 400 409 403 400 1600/1800/2000/2200 18 450 460 454 451 1600/1800/2000/2200 20 500 511 505 502 1800/2000/2200/2400 22 550 562 556 553 1800/2000/2200/2400 24 600 613 607 604 2000/2200/2400/2700 26 650 663 659 656 2400/2700 28 700 714 710 707 2400/2700 SURFACE QUALITY Surface Quality 1. There are no more than two defects or holes on the surface of the electrode and the size shall not exceed the value in the following table. 2. There is no  transverse crack or  longitudinal crack with width of 0.3-1.0 on the surface of  the electrode. The length of  longitudinal crack is not more than 5% of the perimeter of the electrode. The  crack with width less than 0.3mm shall be ignored. 3. The width of black skin area on the surface of  the electrode is less than 1/10 of the perimeter of the electrode and its length is less than 1/3 of the length of the electrode. SPECIFICATION SIZE NOMINAL DIAMETER OF GRAPHITE ELECTRODE (MM) 75-225 250-400 450-800 Diameter(mm) 10-20 20-30 30-40 Depth(mm) 3-5 5-10 10-15 COUPLING TORQUE REFERENCE FOR NIPPLE & ELECTRODE ELECTRODE DIAMETER Inch 8 9 10 12 14 16 18 20 22 24 mm 200 225 250 300 350 400 450 500 550 600 BREAKAWAY TORQUE n.m 200-260 300-340 400-450 550-650 800-950 900-1100 1100-1400 1500-2000 1900-2500 2400-3000