Our company is enterprising manufacture,supply and export of graphite products.

Zhengnai Industry co., LTD

RP|HP|SHP|UHP|Graphite Electrode Suplier

+86 19903830057zhengnaishiye@gmail.com

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How to inspect our company

Release time:2019-11-01 From: Zhengnai Industry in China

Our company welcomes your representatives to visit our company, and our company will do a good job in reception, so that you can have a pleasant journey.



  • 1. There are many aspects involved in the business investigation, which needs to be prepared 1-3 months in advance. Meanwhile, passport and visa processing need time.
  • 2. Please let us know in time when you have confirmed your itinerary
  • 3. Please let us know the detailed personnel information, flight schedule, etc. so that we can arrange vehicles and accommodation.
I look forward to your coming to our company for investigation. After the investigation, you will have satisfactory answers.

Graphite electrode info

Item Unit RP
Electric resistivity Electrode μΩm 7.8-8.8
Nipple 5.0-6.5
Flexural strength Electrode Mpa 7.0-12.0
Nipple 15.0-20.0
Elastic modulus Electrode Gpa 7.1-9.3
Nipple 12.0-14.0
Bulk density Electrode ≥g/cm3 1.53-1.56
Nipple 1.70-1.74
CTE(100-600℃) Electrode x10-6/℃ 2.2-2.6
Nipple 2.0-2.5
Ash   0.5