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Semi-ultra-high Power Graphite Electrodes

emi-ultra-high power graphite electrode is a product between the high power graphite electrode and ultra-high power graphite electrode and it is just a folk name. There is no such a type of semi-ultra-high power in actual product categories. The semi-ultra-high power graphite electrode reduces the proportion of needle coke in the raw material ratio during smelting, thereby reducing the cost. And it well applies to use in ultra-high power electric arc furnaces and refining furnaces.   

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Quasi ultra high power graphite electrode parameters in detail

Quasi ultra high power graphite electrode parameters in detail

Items Unit Nominal diameter 

DHTS-SHP

300/400450/500550/600
The resistivity  Electrode body μΩm5.8-6.44.5-6.04.5-6.2
Contact 3.8-4.53.5-4.53.5-4.5
The flexural strength  Electrode body MPa13.0-15.012.0-15.012.0-15.0
Contact 18-2520-2720-27
The elasticity modulus Electrode body GPa10.0-12.010.0-12.010.0-12.0
Contact 14.0-18.014.0-18.014.0-18.0
The bulk density Electrode body g/cm31.68-1.741.68-1.741.68-1.72
Contact 1.76-1.821.78-1.831.78-1.84
The ash content Electrode body GPa≤0.2≤0.2≤0.2
Contact 
The heat expansion coefficient Electrode body ×10-6/℃1.2-1.81.2-1.81.2-1.8
Contact 1.0-1.41.0-1.41.0-1.4

True density

Electrode body g/cm32.22-2.442.22-2.232.22-2.23

Approval of the specifications of the ultra high power graphite electrode and allowable deviation

Approval of the specifications of the ultra high power graphite electrode and allowable deviation

Dimeter(mm)Length(mm)
Nominal diameter Actual diameterNominal length Allowable deviation 
(mm)(in)(max)(min)mmShort ruler length 
300123073021600
1800
mm max min 
35014357352±100-100-275
40016409403
45018460454
500205115051600/1800/2000/2200
1800/2000/2200
1800/2000/2200/2400
1800/2000/2200
1800/2000/2200
±100-100-275
55022556553
60024613607

Allow the current capacity of quasi ultra high power graphite electrode

Allow the current capacity of quasi ultra high power graphite electrode

Nominal diameter Allowable current capacity (EAF)Current density (A/cm2Allowable current capacity (LC炉)Current density (A/cm2
(mm)(in)
3501418000-2600019-2621000-3100022-31
4001623000-3500019-2226000-3800021-31
4501834000-4200022-2836000-4800023-30
5002041000-5100021-2746000-5400023-27
5502251000-6200021-26————
6002460000-7000021-25————

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