High Power Graphite Electrode

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It is made of high-quality petroleum coke and needle coke as aggregates and coal tar pitch as binder through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization, machining and other procedures. The product has the characteristics of low resistivity, good conductivity and good chemical stability. It can meet the steel-making needs of various high-power electric arc furnaces and refining furnaces.

Parameters

Project Unit HP
(High Power)
≤φ400 ≥φ450
Resistivity Electrode μ Ω m 5.2-6.3 5.3-6.3
Connector 3.5-4.5
Flexural strength Electrode Mpa 10.5-15 10.5-15
Connector 20.0-26.0
Elastic Modulus Electrode Gpa 9.0-12.0
Connector 13.0-18.0.0
Ash Electrode % 0.2
Connector
Bulk density Electrode g/cm³ 1.66-1.73
Connector 1.77-1.82
Thermal expansion
coefficient (100-600℃)		 Electrode 10-6/℃ 1.6-1.8
Connector 1.3-1.5
Graphite Electrode specifications and allowable deviations
Nominal diameter Actual diameter(mm) Actual length(mm)
Mm in Maximum The smallest The black part is the smallest Length Length tolerance Short length
200 8 205 200 197 1600/1800    
250 10 256 251 248 1600/1800    
300 12 307 302 299 1600/1800    
350 14 357 352 349 1600/1800    
400 16 409 403 400 1800/2000/2200 ±100 -275
450 18 460 454 451 1800/2000/2200    
500 20 511 505 502 1800/2000/2200/2400    
550 22 562 556 553 2000/2200/2400    
600 24 613 607 604 2000/2200/2400/2700    
650 26 663 657 654 2400/2700    
700 28 714 708 705 2400/2700    
750 30 765 761 758 2200/2400/2700/3000    
800 32 816 812 809 2200/2400/2700/3000