350mm high power graphite electrode

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Product Tags

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

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.

350mm high power graphite electrode2 350mm high power graphite electrode3

高功率石墨电极和接头标准 High power graphite electrode and joint standard

项目items

单位unit

公称直径 nominal diameter(mm)

200~400

450~550

550~700

电阻率                  specific resistance

电极接头         electrode nipple

μ Ω•m

5.2~6.5                 3.5~4.5

5.2~6.5                3.5~4.5

5.2~6.5                     3.2~4.3

抗折强度  transverse strength

电极接头         electrode nipple

MPa

≥11.0                    ≥22.0

≥11.0                    ≥22.0

≥10.0                    ≥22.0

弹性模量                elastic modulus

电极接头         electrode nipple

GPa

≤12.0                    ≤15.0 

≤12.0  ≤15.0

≤12.0                          ≤15.0

灰分                      ash content

电极接头         electrode nipple

%

≤0.2

≤0.2

≤0.2

体积密度                  bulk density

电极接头          electrode nipple

g/m³

1.68~1.73                1.78~1.83

1.68~1.73           1.78~1.83

1.68~1.72                 1.78~1.83

热膨胀系数        (C.T.E)

电极接头         electrode nipple

10℃

≤2.0                      ≤1.8

≤2.0                        ≤1.8

≤2.0                       ≤1.8

高功率石墨电极允许的电流负载 Allowable current load for high-power graphite electrodes

公称直径           nominal diameter

允许电流                                              allowable current

公称直径              nominal diameter

允许电流                                              allowable current

mm

A

A/㎡

mm

A

A/㎡

200

6500~10000

18~25

450

25000~40000

15~24

250

8000~13000

17~27

500

30000~48000

15~24

300

13000~17500

17~24

550

34000~53000

14~22

350

17400~24000

17~24

600

38000~58000

13~21

400

21000~31000

16~24

700

45000~72000

12~19


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