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  • Supply 300 500mm Rp Graphite Electrode - China

    price: contact company for price

    RP Graphite Electrode, Industrial Graphite Electrode, High Density Graphite Electrodes Manufacturer
    RP Graphite Electrode
    Industrial Graphite Electrode
    High Density Graphite Electrodes Manufacturer
    Electric resistivity : 7.5-8.6
    Bending strength: >=7.5
    Elastic Modulus:<=9
    Bulk density:1.54-1.62
    CTE: 2.20-2.60
    Regular power graphite electrode is a graphite electrode with allowable current density lower than 17A/cm2. RP graphite electrode is mainly used in the ordinary power electric furnace for steelmaking, silicon smelting and yellow phosphorus refining etc.
    Physical and Chemical Index of Hign Power Graphite Electrode:
    Item Unit HP 300~500 550~700
    Electric Resistivity Electrode uΩ.m 5.5~6.8 5.5~7.0 Nipple 4.0~5.5
    Bending Strength Electrode MPa ≥10.0 ≥8.5 Nipple ≥18.0
    Modulus of Elasticity Electrode GPa ≤13.0 Nipple ≤15.0
    Bulk Density Electrode g/cm3 1.62~1.70 Nipple 1.72~1.80
    Ash Content Electrode % ≤0.3 Nipple The Coefficient of Thermal Expansion(CTE) Electrode 10-6/℃ 1.80~2.20 Nipple 1.50~1.80 High Power Graphite Electrode Current Carrying Capacity
    Norminal Diameter HP Current Carrying Capacity Current Density
    inch mm A A/cm2
    12 300 13000~17400 17~24
    14 350 17400~24000 17~24
    16 400 21000~31000 16~24
    18 450 25000~40000 15~24
    20 500 30000~48000 15~24
    22 550 34000~53000 14~22
    24 600 38000~58000 13~21
    28 700 45000~72000 12~19
    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
    20 500 511 505 502 2000/2200/2400
    22 550 562 556 553 2000/2200/2400/2700
    24 600 613 607 604 2200/2400/2700/3000
    28 700 714 710 707 2200/2400/2700/3000
    29 800 816 812 809 2200/2400/2700/3000 Permissible Deviation of Graphite Electrode Length (mm)
    Nominal Length Standard Deviation Short Length Deviation max min max min
    1800 +100 -100 -100 -275
    2000 +100 -100 -100 -275
    2200 +100 -100 -100 -275
    2400 +100 -100 -100 -275
    2700 +200 -150 -150 -275
    3000 +200 -150 -150 -300

    Company Contact:

    • Phone: 86-0536-5222183

    • Address: Shouguang,Weifang, Shandong, China, weifang, shandong, China

    • Email: Email

    Published date: November 4, 2018 -

    • Business Description: Shandong Rongfu new material technology Co,Ltd., which is located in Shandong province, China, have been specialized in the graphite electrode field for more than 10 years since the year 2007. Our graphite electrode has been exported to more than 20 countries and areas, including Iran, India, Russia, Germany, Italy, USA, South America, Japan, Korea, Taiwan, Hongkong and so on in the past years. Our company always serves each customer at credible quality and quality service, and try our best to be most professional graphite electrode supplier in the world.
      Graphite electrode is made from top quality low sulphur petroleum coke and high quality needle coke imported from Japan, using high grade coal pitch and other low ash material as adhesion agent. These raw materials go through the procedure of crushing, calcining, dosing, kneading, forming, multiple roasting, impregnating, graphitizing, mechanical treating, and finally come into graphite electrode. Graphite electrode is one kind of high temperature and oxidation resistant conductive material. Graphite electrode has many advantages such as structure uniformity, low ash material,low electric resistivity, low impurity content, low coefficient of thermal expansion, good electrical and thermal conductivity, good oxidation resistance, strong ability of thermal and mechanical vibration resistance, high mechanical strength, high machining accuracy, matching precision of electrode and joint fit. Graphite electrode is a good conductor of heat and electricity and is widely used in the steelmaking electric arc furnace, refinery furnace, submerged arc furnace and other smelting furnace with high temperature produced by electric arc. Graphite electrode is excellent material for the production of alloy steel and other metallic non-metallic materials by electric arc furnace. Graphite electrode is also excellent material for the smelting production of iron alloy, industrial silicon, yellow phosphorus, corindon by submerged arc furnace.
      Our graphite electrode contains more than 30 kinds of diameter specifications covering from 200mm to 800mm. It divide into regular power graphite electrodes , high power graphite electrodes, ultra high power graphite electrode depending on raw material and production process, and different power and current carrying capacity in use. Special specifications of graphite electrodes and special-shaped graphite products can be produced according to the special requirements of users.

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