Bulk Stock Top Quality High Capacity China UHP Graphite Electrode Manufacturer

Model No.
UHP
Transport Package
Wood Packaging
Specification
100mm-700mm
Trademark
ZHAN YAO
Origin
China
HS Code
8545190000
Production Capacity
50000tons/Year
Reference Price
$ 900.00 - 3,150.00
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Product Description

Product Description

Product Name:  High quality UHP graphite electrode
Product features: Ultra-high power graphite electrode is mainly made of petroleum coke and needle coke. Coal bitumen is used as binder, which is made by calcination, compounding, kneading, pressing, roasting, graphitization and machining. In the electric arc furnace steelmaking, electric energy is released as an electric arc as a conductor to heat and melt the charge. According to the high quality of the graphite electrode quality indicators, it can be divided into ordinary power, high power and ultra high power.
 

 

Ultra high power graphite electrode physical and chemical indicators
project unit Electrode diameter 300-600mm
standard Measured
electrode Connector electrode Connector
resistance μΩm 6.2-6.5 5.5 5.0-6.0 4.5
Flexural strength MPa 10.5 16 14-16 18- 20
Elastic mold GPa 14 18 12 14
Ash % 0.3 0.3 0.3 0.3
Body density g/cm3 1.64-1.65 1.70-1.72 1.72-1.75 1.78
Thermal expansion coefficient(100-600) ×10 -6 /ºC 1.5 1.4 1.3 1.2
 
Ultra high power graphite electrode specifications and tolerances
diameter(mm) length(mm)
Nominal diameter Actual diameter Nominal length Allowable deviation Short length
mm inch max min mm mm max min
300 12 307 302 1600
1800 		±100 -100 -275
350 14 357 352
400 16 409 403
450 18 460 454
500 20 511 505 1600/1800/ 2000/2200/ 1800/2000/ 
2200 		±100 -100 -275
550 22 556 553
600 24 613 607

N ote: When the ultra-high power graphite is used in an electric furnace, the current capacity is -10%, and when used in a ladle furnace, the current capacity is +10%.

Allowable current for ultra high power graphite electrodes
Nominal diameter,mm Allow current load,A Current density,A/cm2
300 15000~22000 20~30
350 20000~30000 20~30
400 25000~40000 19~30
450 32000~45000 19~27
500 38000~55000 18~27
550 45000~70000 18~27
600 50000~97000 18~27
650 55000~110000 18~27
700 85000~120000 18~27
750 90000~130000 18~27
800 95000~140000 18~27

Torque reference value
Electrode diameter Torque
mm in Nm ft.lbs
350 14 850 630
400 16 1100 810
450 18 1500 1100
500 20 2500 1850
550 22 3500 2570
600 24 4000 2940
650 26 5000 3680
700 28 6000 4410
750 30 7500 5510
800 32 10000 7350
Remarks:
Performance indicators of various types of graphite electrodes
Item Unit RP Grade Dia   100-600mm   IP Grade Dia 150-500mm HP Grade Dia 300-600mm SHP Grade Dia  300-600mm UHP Grade  Dia  350-600mm
  Electrode
Resistivity≤      
 Nipple 		μΩM 8.5-7.5 7.5-7  6.5-6 6-5.5 5.5-4.5 
 Electrode Bending strength ≥ Nipple MPa 9.8-13 10-13 10-14 10-16 11-16
 Electrode Elastic Modulus ≤ Nipple GPa 9.3-14 12-14 12-16 14-18 14-18
  Electrode Bulk Density ≥ Nipple  g/cm 1.56--1.69 1.62-1.7 1.63-1.72 1.64-1.72 1.65-1.72
Electrode CTE ≤ Nipple  100~600 2.9-2.8 2.7-2.5 2.2-2 2.2-1.6 1.5-1.4
 ASH≤  % 0.5 0.3 0.3 0.3 0.3

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PRODUCT DETAILS
Bulk Stock Top Quality High Capacity China UHP Graphite Electrode Manufacturer
Production Process
Bulk Stock Top Quality High Capacity China UHP Graphite Electrode Manufacturer
APPLICATION
Graphite electrode is a conductive material for smelting iron and steel, brown corundum, metal silicon and so on in electric furnace. Circuit steelmaking.
Bulk Stock Top Quality High Capacity China UHP Graphite Electrode Manufacturer
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Technology and Innovation

In order to maintain our technological leadership and meet the technical requirements of the different types of furnaces( AC/DC, Ladle furnaces), we constantly invest in our production technologies. We have successfully produced large size UHP graphite electrodes with diameters from Dia.600 mm to Dia.700 MM, which filled gap in this field in domestic markets. With the characters of cost savings and good stable performances, our large size UHP graphite electrodes have replaced imported graphite electrodes in domestic market and accepted by overseas famous iron & steel plants gradually.

Manufacture & Supply Capacity 

  • High-Precision Auto Burden System
  • 3500MT Extrusion Forming Machine
  • Car Bottom Baking Furnace
  • Ultra High Pressure Impregnation System
  • Lengthwise Graphitization Furnace 
  • CNC Machining Centre
Quality Assurance System

All production process is led by Quality Management System in accordance with ISO9001:2000 standards. We pay more attention to the inspection & supervision for each process

Production Process Control 
  • The physical and chemical index of raw material , accessories and process product is inspected by quality inspection department.
  • Inspection of product appearance and dimension is made up of self-checking, next process cross-checking and quality inspection department supervising and checking.
  • The production process index proceeds strictly as per production regulation and is controlled by PLC, meantime, PLC will feedback the process index situation to technical and quality inspection department for supervising, to guarantee the product quality.
Quality System Control 
  • Management delegates and quality inspection department organize internal examine every year to supervise and check system running status.
  • Second party inspection is carried out by end user
  • Third party inspection is carried out by certificaiton authority
  • Packing and logistic is farmed out to other company, and  strictly execute as per Contract items.
  • We have specific after-sales service teams to check our product performances, and feedback the problems to company for improving.
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Packaging & Delivery

Packaging Details: In wooden case, each nipple must be packed in cardboard box for RP HP HD SHP UHP                                       Grade graphite electrode for arc furnaces with nipples
Port: Tianjin
Lead Time :
Quantity(Tons) 1-20 21 - 100 >100
Est. Time(day) 20 35 To be negotiated

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If you have the intention to purchase, please contact us, we will promptly give you a quotation!

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Bulk Stock Top Quality High Capacity China UHP Graphite Electrode Manufacturer
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GOUV.NE, 2023