Europe style for Carbon Refractory Graphite Electrode - UHP 700mm Graphite Electrode – Hexi

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Europe style for Carbon Refractory Graphite Electrode - UHP 700mm Graphite Electrode – Hexi Detail:

700mm UHP graphite electrode is made of high quality needlelike coke, which is formed, roasted, impregnated, graphitized and machineprocessed as a high quality conductive material for electric arc furnace.  UHP 700mm graphite electrode, The allowable current capacity is 73000 ~ 96000A, the allowable current density is 18-24A/㎡  .  It is designed for superpower electric arc furnace steelmaking.

Note: It is recommended that the current capacity be -10% for electric furnace and +10% for ladle furnace.  

Comparison Technical Specification for UHP Graphite Electrode 28″
     
Electrode
Item Unit Supplier Spec
Typical Characteristics of Pole
Nominal Diameter mm 700
Max Diameter mm 714
Min Diameter mm 710
Nominal Length mm 2200-2700
Max Length mm 2300-2800
Min Length mm 2100-2600
Bulk Density g/cm3 1.68-1.72
transverse strength MPa ≥10.0
Young’ Modulus GPa ≤13.0
Specific Resistance µΩm 4.5-5.4
Maximum current density KA/cm2 18-24
Current Carrying Capacity A 73000-96000
(C.T.E) 10-6℃ ≤1.2 
ash content % ≤0.2
     
Typical Characteristics of Nipple (4TPI) 
Bulk Density g/cm3 1.80-1.86
transverse strength MPa ≥24.0
Young’ Modulus GPa ≤20.0 
Specific Resistance µΩm 3.0~3.6
(C.T.E) 10-6℃ ≤1.0
ash content % ≤0.2

700-2

Allowable current load for ultra-high power graphite electrodes

nominal diameter

allowable current

nominal diameter

allowable current

mm

A

A/㎡

mm

A

A/㎡

250

9000~14000

18~25

500

38000~55000

18~27

300

15000~22000

20~30

550

45000~65000

18~27

350

20000~30000

20~30

600

52000~78000

18~27

400

25000~40000

16~24

650

70000~86000

21~25

450

32000~45000

19~27

700

73000~96000

18~24

Ultra high power graphite electrode and joint standard

items

unit

nominal diameter(mm)

   

250~400

450~550

600~700

specific resistance

electrode nipple

μ Ω•m

4.8~5.8   3.4~4.0

4.5~5.6   3.4~3.8

4.5~5.4   3.0~3.6

 transverse strength

 electrode nipple

MPa

≥12.0    ≥22.0

≥12.0    ≥22.0

≥10.0    ≥24.0

elastic modulus

electrode nipple

GPa

≤13.0  ≤18.0  

≤13.0  ≤18.0

≤13.0  ≤20.0

 ash content

 electrode nipple

%

≤0.2

≤0.2

≤0.2

bulk density

 electrode nipple

g/m³

1.68~1.73   1.78~1.84

1.68~1.72   1.78~1.84

1.68~1.72   1.80~1.86

(C.T.E)

 electrode nipple

10℃

≤1.2 ≤1.0

≤1.2 ≤1.0

≤1.2 ≤1.0

 


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Europe style for Carbon Refractory Graphite Electrode - UHP 700mm Graphite Electrode  – Hexi detail pictures


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  • The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Ella from Egypt - 2017.04.18 16:45
    The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!
    5 Stars By Maggie from Luxembourg - 2017.01.28 19:59

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