HP 400mm graphite electrode

Short Description:

HP 400mm graphite electrode is mainly made of petroleum coke and needle coke. The allowable current is 21000-31000A, and the current density can be 16-24A/cm². Generally used for high-power electric arc furnace steelmaking.


Product Detail

Product Tags

The high-power graphite electrode is composed of high-quality petroleum coke, needle coke, coal pitch and other raw materials accounting for 66.88% of the cost. The production cycle exceeds 50 days, and the ultra-high power is up to 65 days. The production process includes calcination, batching, kneading, molding, baking, dipping, secondary baking, graphitization and processing.

High power graphite electrode and joint standard

items

unit

nominal diameter(mm)

200~400

450~550

550~700

                  specific resistance

         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

  transverse strength

         electrode nipple

MPa

≥11.0                    ≥22.0

≥11.0                    ≥22.0

≥10.0                    ≥22.0

                elastic modulus

         electrode nipple

GPa

≤12.0                    ≤15.0

≤12.0  ≤15.0

≤12.0                          ≤15.0

                      ash content

         electrode nipple

%

≤0.2

≤0.2

≤0.2

                  bulk density

          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

        (C.T.E)

         electrode nipple

10℃

≤2.0                      ≤1.8

≤2.0                        ≤1.8

≤2.0                       ≤1.8

Hexi Carbon is a manufacturing company that produces, sells, exports and provides a wide range of high-power graphite electrodes. The high-power graphite electrodes produced by our company have models with diameters from 350mm to 700mm for you to choose, and other graphite electrode models you need can also be customized.

Allowable current load for high-power graphite electrodes

nominal diameter

 allowable current

nominal diameter

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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