Coke obtained from high temperature coking is used for blast furnace smelting, casting and gasification.
Metallurgical coke is a general term for blast furnace coke, foundry coke, ferroalloy coke and nonferrous metal smelting coke. Since more than 90% of metallurgical coke is used in blast furnace ironmaking, blast furnace coke is often called metallurgical coke.
Foundry coke is coke specially used for melting iron in iron furnaces. Foundry coke is the main fuel for melting iron in iron furnaces. Its function is to melt the charge and superheat the molten iron, and support the material column to maintain its good air permeability. Therefore, foundry coke should have the characteristics of large lumpiness, low reactivity, small porosity, sufficient impact resistance to crushing strength, and low ash and sulfur content.
Foundry Coke | Metallurgical Coke | |||
Specifications | First Grade | Second Grade | First Grade | Second Grade |
Ash(max) | 10% | 12% | 12.5% | 13% |
Volatile matter(max) | 1.5% | 1.5% | 1.5% | 1.5% |
Fixed carbon(min) | 88% | 85% | 86% | 85% |
Sulfur(max) | 0.6% | 0.6% | 0.7% | 0.75% |
Moisture(max) | 6% | 6% | 7% | 7% |
Size | 0-10mm, 10-30mm,30-80mm, 60mm-90mm,80-120mm,90-150mm,150-300mm ,or as your requirement |