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Metallurgical coke ,blast furnace coke , nut coke for steel melting
Metallurgical Coke and Furnace Coke are made from a mixing material of serval kinds of coal,under a high temperature(1300ºC) process.They are widely used for steelmaking,ferroalloys manufacture or non-ferrous metals smelting,iron castings manufacture or other related metallurgical and foundry industry,because of its special physical and chemical characteristics:high strength and fixed carbon content,low sulfur and low volatile matter content.
Specification of furnace coke:
| Fixed carbon | 80-86% |
| S | 1% |
| Ash | 12% |
| Moisture | 1.6% |
| V.M. | 1.5% |
| P | 0.003% |
| Porosity | 79.5% |
| Hydrochloric acid dissolution rate | 0.86% |
Note:
1. S of the coke: S is one of harmful impurity of the iron smelting. If the S content above 0.07%, the iron will be waste product.
2. P of the coke: The P content should be bellow 0.02-0.03%, when you iron smelting.
3. Ash of the coke: The ash add 1%, the coke need add 2-2.5%.
4. Volatile matter of the coke: According to the content of the volatile matter we could adjust the grade of the maturity of the coke.
5. Moisture of the coke: Moisture will make the M40 on the high side and make the M10 on the low side.
Size:
A. Coke powder: 0-1, 0-3mm
B. Coke granular: 5-25mm
C. Coke block: 25-80mm