Xingshi Carbon Product

General information UHP 550 550*1800mm , 550*2100mm, 550*2700mm UHP Graphite Electrode /Ultra High Powder Graphite Electrodes UHP 550 Grpahite Electrodes 1. Introduction : UHP graphite electrode is used for steel recycling in electric arc furnace industry. Its main component is high-value needle coke, which is made of petroleum or coal tar. The graphite electrode is machined in a cylindrical shape and a threaded area is machined at each end. In this way, the graphite electrode can be assembled into an electrode column using an electrode connector. In order to meet the requirements of higher work efficiency and lower total cost, large capacity ultra-high power arc furnace is becoming more and more popular. Therefore, UHP graphite electrodes with a diameter of more than 500 mm will dominate the market 2. Features High current resistance and high discharge rate. Good dimensional stability and not easy to deform. Resistance to cracking and spalling. High oxidation resistance and thermal shock resistance. High mechanical strength and low resistance. High machining precision and good surface finish. Uniform structure, good conductivity and thermal conductivity 3. Application Graphite electrode is widely used in the production of alloy steel, metal and other non-metallic materials. DC electric arc furnace. AC arc furnace. Submerged arc furnace. Ladle furnace. (1) Regular power graphite electrode It is allowed to use graphite electrode with current density lower than 17a / cm2, which is mainly used in ordinary power electric furnaces for steelmaking, silicon smelting, yellow phosphorus smelting, etc. (2) Oxidation resistant coated graphite electrode Graphite electrode coated with a layer of antioxidant protective layer (graphite electrode antioxidant). Form a protective layer that can conduct electricity and resist high-temperature oxidation, reduce the electrode consumption during steelmaking (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode. The popularization and use of this technology can bring such economic and social effects: ① The unit consumption of graphite electrode is less, and the production cost is reduced to a certain extent. For example, in a steelmaking plant, based on the consumption of 35pcs graphite electrodes per week and 165 refining furnaces in the primary LF refining furnace without shutdown throughout the year, 373pcs graphite electrodes can be saved every year after the graphite electrode oxidation resistance technology is adopted (153 tons) electrode, calculated at 3000USD per ton of ultra-high power electrode per year, USD 459,000 can be saved. ② The graphite electrode consumes less power, saves the unit steelmaking power consumption, saves the production cost and saves energy! ③ Because the graphite electrode is changed less times, the amount of labor and risk coefficient of operators are reduced, and the production efficiency is improved. ④ Graphite electrode is a low consumption and low pollution product. Today, when energy conservation, emission reduction and environmental protection are advocated, it has very important social significance. This technology is still in the research and development stage in China, and some domestic manufacturers have also begun to produce it. It has been widely used in Japan and other developed countries. At present, there are also companies specializing in importing this anti-oxidation protective coating in China. (3) High power graphite electrode. Graphite electrode with current density of 18 ~ 25A / cm2 is allowed to be used, which is mainly used in high-power electric arc furnace for steelmaking. (4) Ultra high power graphite electrode. UHP Graphite electrodes with a current density greater than 25A / cm2 are allowed. It is mainly used for ultra-high power steelmaking electric arc furnace. 石墨电极用途 4. Nipple 3TPI/T4L/T4N Or Customized electrode Nipple 5. Product Parameters graphite electrode with wooden case Graphite Electrode More specification and Details : For following just for your reference : For more details ,Kindly click the Button " Contact us " Talk to me on Line or E-mail: sales@china-xingshi.com , also Whatsapp ,wechat : +86 13028650772 Items Regular power(RP) High power(HP) Ultrahigh power(UHP) ⌽200-300 ⌽350-600 ⌽700 ⌽200-400 ⌽450-600 ⌽700 ⌽250-400 ⌽450-600 ⌽700 ResistanceμΩm(Max) Electrode 7.5 8.0 6.5 7.0 5.5 5.5 Nipple 6.0 6.5 5.0 5.5 3.8 3.6 BulkDensityg/cm3(Min) Electrode 1.53 1.52 1.53 1.62 1.60 1.62 1.67 1.66 1.66 Nipple 1.69 1.68 1.73 1.72 1.75 1.78 BendingStrengthMpa(Min) Electrode 8.5 7.0 6.5 10.5 9.8 10.0 11.0 11.0 Nipple 15.0 15.0 16.0 16.0 20.0 20.0 Young'smodulusGpa(Max) Electrode 9.3 9.0 12.0 12.0 14.0 14.0 Nipple 14.0 14.0 16.0 16.0 18.0 22.0 Ash%(Max) Electrode 0.5 0.5 0.3 0.3 0.3 0.3 Nipple 0.5 0.5 0.3 0.3 0.3 0.3 CTE(100-600℃)×10-6/℃ Electrode 2.9 2.9 2.4 2.4 1.5 1.4 Nipple 2.8 2.8 2.2 2.2 1.4 1.2 The quality of our product is recognized by the quality examination center of the national metallurgy carbon material sampling analyze to all attain the YB/T4088-2015、YB/T4089-2015、YB/T4090-2015. Standard Sizes of Electrode :If there are special specification requirements,both sides consult supply & demand. For more detailed Sizes and Specs : Uhp Graphite electrode , Graphite electrodes , Hp Graphite Electrode , Rp Graphite electrode φ200mm-700mm Length 1800mm -2700mm Standard sizes of electrode Specifications(inch) Allowable Diameter(mm) Allowable Length(mm) Nominal Diameter Max. Min. Nominal Length Max. Min. 6 150 154 151 1600 1700 1500 1800 1875 1700 8 200 205 200 1600 1700 1500 1800 1875 1700 9 225 230 225 1600 1700 1500 1800 1875 1700 10 250 256 251 1600 1700 1500 1800 1875 1700 12 300 307 302 1800 1875 1700 14 350 357 352 1600 1700 1500 1800 1875 1700 16 400 409 403 1600 1500 1500 1800 1875 1700 2100 2175 1975 18 450 460 454 1800 1875 1700 2100 2175 1975 2400 2475 2275 20 500 511 505 1800 1875 1700 2100 2175 1975 2400 2475 2275 22 550 562 556 2100 2175 1975 2400 2475 2275 24 600 613 607 2100 2175 1975 2400 2475 2275 2800 2850 2550 28 700 714 708 2400 2475 2275 2800 2850 2550 Current Carrying Capacity for Graphite Electrode: Nominal Diameter(mm) Regular Power High Power Ulra High Power Current Load(A) Current Density(A/cm2) Current Load(A) Current Density(A/cm2) Current Load(A) Current Density(A/cm2) 200 5000-6900 15-21 5500-9000 18-25 ———— ———— 225 6100-8600 15-21 6500-10000 18-25 ———— ———— 250 7000~10000 14-20 8000~13000 18-25 ———— ———— 300 10000~13000 14-18 13000~17400 17-24 15000~22000 20-30 350 13500~18000 14-18 17400~24000 17-24 20000~30000 20-30 400 18000~23500 14-18 21000~31000 16-24 25000~40000 19-30 450 22000~27000 13-17 25000~40000 15-24 32000~45000 19-27 500 25000~32000 13-16 30000~48000 15-24 38000~55000 18-27 550 32000~40000 13-16 37000~57000 15-23 42000~66000 17-26 600 38000~47000 13-16 44000~67000 15-23 49000~88000 17-26 700 48000~59000 12-15 59620~83600 13-18 70000-110000 17-24