Foundry coke, also known as hard coal coke, is produced in non-recovery coke ovens. It is used for melting iron and other metals such as lead, copper, tin, and zing in a cupola furnace at foundries. It has denser structure, high carbon, low ash, and high heating value. The size of the foundry coke is larger than metallurgical coke. The size specification depends on the size of the cupola furnace. Foundry coke is used as a supporting matrix, reducing agent, and energy carrier during the pig iron manufacturing process. The use of large sized coke offers advantages of lower blasting pressure, increased metal temperature, reduced breakage from handling, and reduced reaction with CO2.
The global foundry coke market can be segmented based on furnace size, process, type of metal smelting, and region. In terms of furnace size, the foundry coke market can be divided into 600-1200 mm, 1200-1800mm, and above 1800mm. In general, foundry coke is burned in cupola furnace. The size of the foundry coke is decided based on the inside diameter of the cupola furnace. The larger the size of the furnace, the higher the size of foundry coke used.
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Item |
Foundry coke |
Metallurgical coke |
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First grade |
Second grade |
First grade |
Second grade |
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Ash(max) |
10% |
12% |
12.50% |
13% |
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V.M(max) |
1.50% |
1.50% |
1.50% |
1.50% |
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F.C(min) |
88% |
86% |
86% |
85% |
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Sulfur(max) |
0.60% |
0.60% |
0.70% |
0.70% |
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Moisture(max) |
5% |
5% |
7% |
7% |
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Size90% |
80-120mm,120-300mm,or as your requirement |
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Packing |
in bulk or loose inside container;in25kgs bag,then into |
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