RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm

Product Details
Customization: Available
Current Capacity: 18-25A/Cm2
Cte: 2.9
Diamond Member Since 2019

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Registered Capital
5000000 RMB
Plant Area
101~500 square meters
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
  • RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
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  • Overview
  • Product Parameters
  • Features
  • Detailed Photos
Overview

Basic Info.

Model NO.
RP 350mm
Density
1.56
Resistance
8.5-10
Type
Graphite Electrodes
Carbon Content
High-Carbon
Grade
Industrial Grade
Forming Way
Extruded Graphite
Crystal Morphology
Compact Crystalline Graphite
Composition
Coker
Transport Package
Wooden Fence or Wooden Case
Specification
RP 150-350mm
Trademark
XINGSHI GRAPHITE
Origin
China
HS Code
8545110000
Production Capacity
5000 Tons/Month

Product Description

EG, EGP , EGSP Graphite Electrodes carbon electrodes RP HP UHP Electrode for Steelmaking

RP Graphite Electrodes for Electric Arc Furnace Steel Production


Graphite electrodes is made of high-quality calcined petroleum coke, imported needle coke, and modified coal asphalt,the grade are RP, HD(impregnation),HP, SHP and UHP graphite electrodes,the Diameter is from 75-700mm.Graphite electrode produced by our company has the advantages of low resistivity,high electrical conductivity and thermal conductivity,good oxidation resistance,good thermal shock resistance,high mechanical strength,easy to machine,etc.Graphite electrode is widely used to smelt the steel,alloy steel and other metal or nonmetal material in electric arc furnace.

RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm

 
Product Parameters

Graphite electrodes of EG/RP grade are used in electric arc, refining, ferroalloy and submerged-arc furnaces

Properties Units of measurement Typical values
Diameter mm 75-150 200-350 400-600 700
Bulk density g/cm3 1.61 1.61 1.61 1.58
Ash impurities % 0,2 0,2 0,3 0,3
Specific electrical resistance µОhmm 8.0 8.0 8.0 8.5
Linear thermal expansion coefficient,  (20-520) ºС 10-6 •1/°С 2.4 2.4 2.4 2.5
Flexural strength MPa 11 11 9 8
Modulus of elasticity (Young's modulus) GPa 9 7 7 7



Graphite electrodes of EGP/ HP grade are used in high power electric arc furnaces and ladle furnaces 
Properties Units of measurement Typical values
Diameter mm 200-350 400-500
Bulk density g/cm3 1.70 1.70
Ash impurities % 0.2 0.2
Specific electrical resistance µОhm•m 6.5 6.5
Linear thermal expansion coefficient,  (20-520) ºС 10-6 •1/°С 2.4 2.4
Flexural strength MPa 16 14
Modulus of elasticity (Young's modulus) GPa 9 9
 
Graphite electrodes of EGSP/ UHP grade are used in ultra high power electric arc furnaces and ladle furnaces 
Properties Units of measurement Typical values
Diameter mm 350-450 500-650
Bulk density g/cm3 1.72 1.70
Ash impurities % 0.2 0.2
Specific electrical resistance µОhmm 6.0 5.1
Linear thermal expansion coefficient,  (20-520) ºС 10-6 •1/°С 2.1 1.3
Flexural strength MPa 15 12
Modulus of elasticity (Young's modulus) GPa 10 11

Nipples for graphite electrodes
Properties Units of measurement Typical values
Diameter mm 75-150 200-350 400-550 600-700
Bulk density g/cm3 1.68 1.77 1.80 1.82
Ash impurities % 0.2 0.2 0.2 0.2
Specific electrical resistance µОhmm 5.5 4.5 4.2 4.0
Linear thermal expansion coefficient,  (20-520) ºС 10-6 •1/°С 2.2 1.1 1.2 1.1
Flexural strength MPa 16 17 22  23
Modulus of elasticity (Young's modulus) GPa - 17 17 18
 Note: the above values are average values and they do not constitute a specification
 
Sizes of graphite electrodes 
Nominal
diameter, mm
Typical diameter  Allowable diameter, mm  Nominal length, mm
mm maximum maximum minimum
75 76 3 78 73 1000/1200/1500
100 102 4 103 98 1000/1200/1500
125 130 5 132 127 1000/1200/1500
150 152 6 154 149 1200/1500/1800
175 178 7 179 174 1200/1500/1800
200 203 8 205 200 1500/1800
225 229 9 230 225 1500/1800
250 254 10 256 251 1500/1800
300 305 11 307 302 1500/1800/2100
350 356 12 357 352 1500/1800/2100
400 406 16 409 403 1500/1800/2100/2400
450 457 18 460 454 1500/1800/2100/2400
500 508 20 511 505 1500/1800/2100/2400
500 508 20 511 505 1500/1800/2100/2400/2700
550 559 22 562 556 1500/1800/2100/2400/2700
600 610 24 613 607 1500/1800/2100/2400/2700
650 662 26 663 659 1500/1800/2100/2400/2700
700 711 28 714 708 1500/1800/2100/2400/2700
Allowable lengths of graphite electrodes 
Nominal length, mm Allowable normal electrode length, mm Allowable short electrode length, mm
maximum minimum maximum minimum
1000 1050 925 925 800
1200 1250 1100 1100 975
1500 1600 1400 1400 1225
1800 1900 1700 1700 1525
2100 2225 1975 1975 1825
2400 2525 2275 2275 2125
2700 2900 2550 2550 2400


 
 
 
 Sizes of graphite nipples and electrode sockets with 4TP
 
 
Nominal electrode diameter Joint designation Nipple Electrode socket
External diameter Effective diameter Length Effective diameter Depth Thread depth
d1 d2 L1 d4 L2 L3
200 122Т4N 122.24 119.08 177.80 119.08 94.90 90.90
225 139Т4N 139.70 136.54 177.80 136.54 94.90 90.90
250 152Т4N 152.40 149.24 190.50 149.24 101.30 97.30
300 177Т4N 177.80 174.64 215.90 174.64 114.00 110.00
350 203Т4N 203.20 200.04 254.00 200.04 133.00 129.00
350 203Т4L 203.20 200.04 304.80 200.04 158.40 154.40
400 222Т4N 222.25 219.09 304.80 219.09 158.40 154.40
400 222Т4L 222.25 219.09 355.60 219.09 183.80 179.80
450 241Т4N 241.30 238.14 304.80 238.14 158.40 154.40
450 241Т4L 241.30 238.14 355.60 238.14 183.80 179.80
500 269Т4N 269.88 266.72 355.60 266.72 183.80 179.80
500 269Т4L 269.88 266.72 457.20 266.72 234.60 230.60
550 298Т4N 298.45 295.29 355.60 295.29 183.80 179.80
550 298Т4L 298.45 295.29 457.20 295.29 234.60 230.60
600 317Т4N 317.50 314.34 355.60 314.34 183.80 179.80
600 317Т4L 317.50 314.34 457.20 314.34 234.60 230.60
650 355Т4N 355.60 352.44 457.20 352.44 234.60 230.60
650 355Т4L 355.60 352.44 558.80 352.44 285.40 281.40
700 317Т4L 317.50 314.34 457.20 314.34 234.60 230.60
700 374Т4N 374.65 371.49 457.20 371.49 234.60 230.60
700 374Т4L 374.65 371.49 558.80 371.49 285.40 281.40
 
Note: Nipple effective diameter d2 is equal to electrode socket effective diameter d4
 
Other combinations of the nominal diameter and the joint are to be agreed upon with a customer!
 
Sizes of graphite nipples and electrode sockets with  Т3 taper thread
 
Nominal electrode diameter Joint designation Nipple Electrode socket
External diameter Effective diameter Length Effective diameter Depth Thread depth
d1 d2 L1 d4 L2 L3
225 139Т3N 139.70 135.49 203.20 135.49 107.60 103.60
250 155Т3N 155.57 151.36 220.00 151.36 116.00 112.00
300 177Т3N 177.16 172.95 270.90 172.95 141.50 137.50
350/400 215Т3N 215.90 211.69 304.80 211.69 158.40 154.40
350/400 215Т3L 215.90 211.69 355.60 211.69 183.80 179.80
400/450 241Т3N 241.30 237.09 338.70 237.09 175.30 171.30
400/450 241Т3L 241.30 237.09 355.60 237.09 183.80 179.80
500 273Т3N 273.05 268.84 355.60 268.84 183.80 179.80
500 273Т3L 273.05 268.84 457.20 268.84 234.60 230.60
550 298Т3L 298.45 294.24 457.20 294.23 234.60 230.60
 

 
Sizes of graphite nipples and electrode sockets with cylindrical thread 3
 
 
 
Nominal electrode diameter Joint designation Nipple Electrode socket
Diameter
d
Length
L
External diameter
d1
Socket depth
L1
75 41С3N 41.2 103.0 35.1 53.0
100 66C3N 66.7 135.0 60.6 69.0
125 69C3N 69.8 153.0 63.7 78.0
150 88C3N 88.9 169.0 82.8 86.0
200 122C3N 122.2 203.0 116.1 103.0
 
Note: Nipples from 75 mm to 200 mm in diameter  are made without holes for plugs.
 
 
Recommended tightening torque when joining electrodes
 
Nominal electrode diameter, mm Tightening torque, Nm
75 30
100 50
125 90
150 130
175 200
200 250
225 350
250 450
300 650
350 850
400 1100
450 1500
500 2500
550 3500
600 4000
650 5000
700 6000
 
Recommended current loads of graphite electrodes.
Nominal diameter, mm Allowable current density, A/cm2
EG EGP EGSP
150 18-25 - -
200 18-25 20-30 25-35
250 15-20 20-25 25-35
300 15-20 20-25 25-35
350 15-20 20-25 25-35
400 15-18 18-22 25-30
450 15-18 18-22 25-30
500 15-18 18-22 22-28
550 15-18 18-22 22-28
600 10-15 15-20 22-28
650 - - 20-26
700 12 - 19-25
 
Features
 
* Full range of carbon materials, graphite materials, refactories and water treatment materials products and solutions;
* High output, with an annual output of 100,000 tons, timely delivery;
* Low resistivity
* High temperature strength
* Good thermal conductivity and electrical conductivity
* Low thermal expansion coefficient
* Low ash,Its ash content is controlled within 3%.
* Dense and equal structure,Low graphite electrode consumption.
* Good oxidation resistance
* High mechanical strength
Detailed Photos

 

RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mmRP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mmRP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mmRP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm

Graphite electrodes in stock and on order!

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RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm
RP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mmRP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mmRP Graphite Electrode – Good Electrical Conductivity, Low Consumption 150mm, 250mm, 350mm, 300mm

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