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Pre-baked carbon block for electric furnace

Pre-baked carbon block for electric furnace has good thermal stability small thermal expansion coefficient high temperature resistance resistance to various acids alkalis salts and organic solvents...
Model Number: Hongtai
Minimum Order Quantity: 1 ton




carbon brick

Product Description

Raw material of Pre-baked carbon block
Pre-baked carbon block raw materials include anthracite, coke and graphite, as well as binders such as asphalt, tar and anthracene oil. Anthracite has less volatile content and a dense structure. When producing carbon bricks, it is mostly used as aggregate, metallurgical coke (coal coke) is added, and asphalt is used as a binder.

Production Process of Pre-baked carbon block
The production process of carbon bricks is roughly similar to other refractory bricks, but it must prevent the oxidation of carbon at high temperatures, so the baking of raw materials and the firing of products must be carried out in a reducing atmosphere.
The Pre-baked carbon block ingredients are roasted granular anthracite as aggregate, the firing temperature is 1300~1450℃, the holding time is about 20 hours, the total firing time is about 240~420 hours, and the kiln is cooled to 40~60℃. Carbon bricks leave the kiln at high temperature, which is easy to catch fire.

Feature of the Pre-baked carbon block
Pre-baked carbon block has good thermal stability, small thermal expansion coefficient, high temperature resistance, resistance to various acids, alkalis, salts and organic solvents, but it is easily oxidized in an oxidizing atmosphere.

Use of the Pre-baked carbon block
Carbon bricks are widely used in the metallurgical industry. Among them, the blast furnace Pre-baked carbon block is the most used, and the bottom and hearth of many blast furnaces are made of Pre-baked carbon block. Carbon bricks are also used in aluminum electrolytic cells. In addition, it is also widely used in pickling tanks, electroplating tanks in the electroplating industry, dissolution tanks in the paper industry, reaction tanks and storage tanks in the chemical industry, and autoclaves in the petrochemical industry.

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Pre-baked carbon block
Fixed Carbon % 90
Ash % 8
Volatile matter % 2
Bulk Density   (g/cm3) 1.52
Apparent Porosity  %  25
Cold Crushing Strength (Mpa) 32

Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

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Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer’s requirements


★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer’s demand or two sides negotiate

Our Services

We provide you 

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.

We are here for you!

Certification:  (ISO 9001:2015)



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