E-G Graphitized cathode carbon blocks-Wanji Holding Group

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E-G Graphitized cathode carbon blocks

Wanji Holding Group Co., Ltd. is among the Top 500 Enterprises of China, with its total assets being 30 billion yuan. Wanji Holding Group Graphite Product Co., Ltd. is Wanji Holding Group’s wholly-owned subsidiary which was established in 2004, with graphitized cathodes for aluminum electrolysis being its main product. It has a total investment of 1.1 billion yuan and has introduced key technical equipment from Germany’s KHD, etc. The company has an annual output of 50,000 tons. It has established cooperation with over 30 electrolytic aluminum companies both home and abroad, such as Weiqiao, Xinfa, Chinalco, Alcoa and Rio Tinto. Our products are sold to as many as 20+ countries and regions. The “Wanji” brand enjoys a good reputation overseas and is praised by industry insiders.

Indexes	Unit	Typical value	Standard deviation	Max. value	Min. value
Volume density	g/cm³	1.68	0.015	1.71	1.65
True density	g/cm³	2.18	0.015	2.2	2.16
Resistivity	µΩ·m	9	1	12	8
Resistivity	MPa	30	2	35	25
Ash content	%	0.3	0.2	0.8
Flexural strength	MPa	11	1	15	8
Porosity	%	23	1	25	22
Coefficient of thermal expansion (20-900) ℃	K^-1×10^-6	4.5	0.2	5	4
Electrolytic expansion rate	%	0.4

Physicochemical indexes for E-G graphitized cathode carbon blocks