Basic Info.
Carbon Content
High-Carbon
Forming Way
Extruded Graphite
Crystal Morphology
Aphanitic Graphite
Transport Package
Wooden Cases
Product Description
Standard for RP Graphite Electrodes and Nipples
Items | Unit | Nominal diameter (mm) |
200-300 | 350-600 | 780-1400 |
Specific resistance | Electrode Nipple | μΩ .m | 7.5-8.5 6.5-7.0 | 7.5-8.5 6.5-7.0 | 8.5-10.5 6.5-7.0 |
Transverse strength | Electrode Nipple | MPa | ≥8.5 ≥13.0 | ≥7.8 ≥13.0 | ≥6.0 ≥13.0 |
Elastic module | Electrode Nipple | GPa | ≤9.3 ≤13.0 | ≤9.3 ≤13.0 | ≤12.0 ≤13.0 |
Ash content | Electrode Nipple | % | ≤0.3 | ≤0.3 | ≤0.3 |
Bulk density | Electrode Nipple | g/cm³ | 1.55-1.60 1.63-1.68 | 1.55-1.60 1.63-1.68 | 1.59-1.62 1.65-1.70 |
(C.T.E) | Electrode Nipple | 10-6 с | ≤2.9 ≤2.7 | ≤2.9 ≤2.8 | ≤2.9 ≤2.8 |
Allowable Current of RP Graphite Electrodes
Nominal diameter (mm) | allowable current |
mm | A | A/c |
200-300 | 10000-13000 | 15-21 |
350-600 | 13500-32000 | 14-19 |
Regular Power Graphite Electrodes are made of high quality petroleum coke and coal tar pitch produced by Petro China Fushun Petrochemical Company. They are refined by calcining, proportioning, mixing, pressing, roasting, graphitizing and machining. The nipples are made by one- immersion and two-firing process.
Standard for HP Graphite Electrodes and Nipples
Items | Unit | Nominal diameter (mm) |
200-300 | 350-600 |
Specific resistance | Electrode Nipple | μΩ .m | 5.2-6.5 4.8-5.2 | 5.5-6.8 4.8-5.0 |
Transverse strength | Electrode Nipple | MPa | ≥11.0 ≥16.0 | ≥11 ≥16.0 |
Elastic module | Electrode Nipple | GPa | ≤11.0 ≤15.0 | ≤11.0 ≤15.0 |
Ash content | Electrode Nipple | % | ≤0.3 | ≤0.3 |
Bulk density | Electrode Nipple | g/cm³ | 1.64-1.70 1.73-1.79 | 1.63-1.70 1.73-1.79 |
(C.T.E) | Electrode Nipple | 10-6 с | ≤2.4 ≤2.2 | ≤2.4 ≤2.2 |
Allowable Current of HP Graphite Electrodes
Nominal diameter (mm) | allowable current |
mm | A | A/c |
200-300 | 13000-17400 | 17-24 |
350-600 | 17400-58000 | 15-23 |
Standard for Ultra High Power Graphite Electrodes and Nipples
Items | Unit | Nominal diameter (mm) |
200-300 | 350-600 |
Specific resistance | Electrode Nipple | μΩ .m | 4.8-5.5 3.6-4.5 | 4.8-5.6 3.6-4.5 |
Transverse strength | Electrode Nipple | MPa | ≥11.0 ≥18.0 | ≥11.0 ≥18.0 |
Elastic module | Electrode Nipple | GPa | ≤13.0 ≤17.0 | ≤13.0 ≤17.0 |
Ash content | Electrode Nipple | % | ≤0.3 | ≤0.3 |
Bulk density | Electrode Nipple | g/cm³ | 1.67-1.72 1.75-1.82 | 1.65-1.72 1.75-1.82 |
(C.T.E) | Electrode Nipple | 10-6 с | ≤1.5 ≤1.4 | ≤1.5 ≤1.4 |
Allowale Current of Ultra High Power Graphite Electrodes
Nominal diameter (mm) | (allowable current) |
mm | A | A/c |
200-300 | 13000-22000 | 20-30 |
350-600 | 20000-72000 | 19-24 |
Dimensions for Graphite electrode conical nipples
Dimensions for Graphite electrode | conical nipples | socket plug | screw pitch |
D | d2 | L | I | d1 | H |
deviation | ≤ | deviation |
type | metric system | British system | -0.30-0 | -0.30 0 | -1- 0 | 7 | 0-0.3 | 0-7 | 8.47 |
3TPI | 225 | 9″ | 139.7 | 91.22 | 203.2 | 141.22 | 107.6 |
250 | 10″ | 155.57 | 104.2 | 220 | 157.09 | 116 |
300 | 12″ | 177.16 | 117.39 | 270.9 | 148.68 | 141.5 |
350 | 14″ | 215.9 | 150.48 | 304.8 | 217.42 | 158.4 |
400 | 16″ | 215.9 | 150.48 | 304.8 | 217.42 | 158.4 |
400 | 16″ | 241.3 | 170.23 | 338.7 | 242.82 | 175.3 |
450 | 18″ | 241.3 | 170.23 | 338.7 | 242.82 | 175.3 |
450 | 18″ | 273.05 | 199.17 | 355.6 | 274.57 | 183.8 |
500 | 20″ | 273.05 | 199.17 | 355.6 | 274.57 | 183.8 |
500 | 20″ | 298.45 | 221.73 | 372.6 | 299.97 | 192.2 |
550 | 22″ | 298.45 | 221.73 | 372.6 | 299.97 | 192.2 |
600 | 24″ | 336.55 | 245.73 | 457.3 | 338.07 | 234.6 |
3TPIL | 350 | 14″ | 215.9 | 144.85 | 338.7 | 217.42 | 175.3 |
400 | 16″ | 241.3 | 167.43 | 355.6 | 242.82 | 183.8 |
450 | 18″ | 273.05 | 182.23 | 457.3 | 274.57 | 234.6 |
4TPI | 200 | 8″ | 122.24 | 81.48 | 177.8 | 7 | 115.92 | 94.9 | 6.35 |
225 | 9″ | 139.7 | 98.94 | 177.8 | 133.38 | 94.9 |
250 | 10″ | 152.4 | 109.52 | 190.5 | 146.08 | 101.3 |
300 | 12″ | 177.8 | 130.69 | 215.9 | 171.48 | 114 |
350 | 14″ | 203.2 | 149.74 | 254 | 196.88 | 133 |
400 | 16″ | 222.25 | 160.32 | 304.8 | 215.93 | 158.4 |
450 | 18″ | 241.3 | 197.37 | 304.8 | 234.98 | 158.4 |
500 | 20″ | 269.88 | 199.49 | 355.6 | 263.56 | 183.8 |
550 | 22″ | 298.45 | 228.06 | 355.6 | 292.13 | 183.8 |
600 | 24″ | 317.5 | 247.11 | 355.6 | 311.18 | 183.8 |
650 | 26″ | 355.6 | 268.27 | 457.2 | 349.28 | 234.6 |
700 | 28″ | 374.65 | 287.32 | 457.2 | 368.33 | 234.6 |
4TPIL | 300 | 12″ | 177.8 | 124.34 | 254 | 171.48 | 133 |
350 | 14″ | 203.2 | 141.27 | 304.8 | 196.88 | 158.4 |
400 | 16″ | 222.25 | 151.86 | 355.6 | 215.93 | 183.8 |
450 | 18″ | 241.3 | 190.91 | 355.6 | 234.98 | 183.8 |
500 | 20″ | 269.88 | 182.55 | 457.2 | 263.56 | 234.6 |
550 | 22″ | 298.45 | 211.12 | 457.2 | 292.13 | 234.6 |
600 | 24″ | 317.5 | 230.17 | 457.2 | 311.18 | 234.6 |
650 | 26″ | 355.64 | 251.38 | 558.8 | 349.28 | 285.4 |
700 | 28″ | 374.65 | 370.39 | 588.8 | 368.33 | 285.4 |
Address:
Room 202, Inspection Warehouse Office Area, No. 6262, Aozhou Road, Tianjin Pilot Free Trade Zone (Dongjiang Bonded Port Zone, Tianjin, China
Business Type:
Trading Company
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Metallurgy, Mineral & Energy, Tools & Hardware
Management System Certification:
ISO 9001, ISO 9000
Company Introduction:
Our company offers differents specification of graphite products which can meet your multifarious demands. We have full set of production lines from calcining to NC finishing, inspection equipments to meet various inspection needs. The graphite electrodes are made from superior petroleum coke, needle coke and ingredients, through strict and precise production process. Specifications of RP, HD, HP are all available with high quality and competitive prices. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.