Factory directly Low Ash Graphite Electrode Powder - HP 400mm graphite electrode – Hexi
Factory directly Low Ash Graphite Electrode Powder - HP 400mm graphite electrode – Hexi Detail:
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.
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High power graphite electrode and joint standard |
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items |
unit |
nominal diameter(mm) |
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200~400 |
450~550 |
550~700 |
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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 |
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transverse strength |
electrode nipple |
MPa |
≥11.0 ≥22.0 |
≥11.0 ≥22.0 |
≥10.0 ≥22.0 |
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elastic modulus |
electrode nipple |
GPa |
≤12.0 ≤15.0 |
≤12.0 ≤15.0 |
≤12.0 ≤15.0 |
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ash content |
electrode nipple |
% |
≤0.2 |
≤0.2 |
≤0.2 |
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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 |
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(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.
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Allowable current load for high-power graphite electrodes |
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nominal diameter |
allowable current |
nominal diameter |
allowable current |
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mm |
A |
A/㎡ |
mm |
A |
A/㎡ |
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200 |
6500~10000 |
18~25 |
450 |
25000~40000 |
15~24 |
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250 |
8000~13000 |
17~27 |
500 |
30000~48000 |
15~24 |
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300 |
13000~17500 |
17~24 |
550 |
34000~53000 |
14~22 |
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350 |
17400~24000 |
17~24 |
600 |
38000~58000 |
13~21 |
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400 |
21000~31000 |
16~24 |
700 |
45000~72000 |
12~19 |
Product detail pictures:

Related Product Guide:
Our pursuit and company goal is to "Always satisfy our customer requirements". We continue to develop and design superior quality products for both our old and new customers and achieve a win-win prospect for our clients as well as us for Factory directly Low Ash Graphite Electrode Powder - HP 400mm graphite electrode – Hexi, The product will supply to all over the world, such as: Porto, America, Malawi, Ensuring high product quality by choosing the best suppliers, we have also implemented comprehensive quality control processes throughout our sourcing procedures. Meanwhile, our access to a large range of factories, coupled with our excellent management, also ensures that we can quickly fill your requirements at the best prices, regardless the order size.
In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!








