Discount Price 800mm Graphite Electrode - RP 350 Ordinary power graphite electrode – Hexi

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普通功率石墨电极和接头标准 Common power graphite electrode joints and joint standards

项目items

单位unit

公称直径 nominal diameter(mm)

100~200

250~300

350~600

780~1400

电阻率                  specific resistance

电极接头         electrode nipple

μ Ω•m

7.5~8.5                 5.8~6.5

7.5~8.5                 5.8~6.5

7.5~8.5                 5.8~6.5

8.5~10.5                 5.8~6.5

抗折强度  transverse strength

电极接头         electrode nipple

MPa

≥10.0                    ≥16.0

≥9.0                    ≥16.0

≥8.5                   ≥16.0

≥7.0                      ≥16.0

弹性模量                elastic modulus

电极接头         electrode nipple

GPa

≤9.3                    ≤13.0  

≤9.3                    ≤13.0  

≤9.3                          ≤13.0

≤12.0                          ≤13.0

灰分                      ash content

电极接头         electrode nipple

%

≤0.3

≤0.3

≤0.3

≤0.3

体积密度                  bulk density

电极接头          electrode nipple

g/m³

1.55~1.64                ≥1.74

1.55~1.64                ≥1.74

1.55~1.63                 ≥1.74

1.55~1.63                 ≥1.74

热膨胀系数        (C.T.E)

电极接头         electrode nipple

10℃

≤2.4                     ≤2.0

≤2.4                     ≤2.0

≤2.4                     ≤2.0

≤2.4                      ≤2.0

 

普通功率石墨电极允许的电流负载

Current load allowed by ordinary 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/㎡

100

1500~2400

19~30

400

18000~23500

14~18

150

3000~4500

16~25

450

22000~27000

13~17

200

5000~7000

15~21

500

25000~32000

13~16

250

7000~10000

14~20

550

28000~3458000

12~14

300

10000~13000

14~18

600

30000~36000

11~13

350

13500~18000

14~18

780~1400

57000~108000

12~8

350-2 350-3 350-4
Graphitization refers to the high temperature heat treatment process of transforming amorphous carbon into three-dimensional ordered planar hexagonal mesh laminated graphite by heating carbon products to 2300℃ or above in a high temperature electric furnace. The graphitization of carbon materials is carried out at a high temperature of 2300 ~ 3000℃. Because the combustion of fossil fuels is difficult to obtain such a high temperature, it can only be achieved by electric heating roasting in industry.
The products of Hexi have passed ISO9001 quality management system certification and obtained the export qualification of graphite electrode authorized by Chinese government. With good quality and excellent after-sales service, our products are in great demand in the world market.


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