HP 350mm Graphite Electrode

Short Description:

Grade:High Power
Applicable furnace: EAF
Length: 1800mm/2100mm/2400mm
Nipple:3TPI/4TPI
Shipping Term: EXW/FOB/CIF


Product Detail

Product Tags

350-3
350-2

HP graphite electrode is mainly made of petroleum coke and needle coke, It is capable of carrying the current density 18-25A/cm2. Generally it is designed for high power electric arc furnace steel-making.

 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

灰分                      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

 

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


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