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Electric furnace roof precast piece
The prefabricated parts of the electric furnace roof have the characteristics of high strength, good thermal shock resistance, erosion resistance, stable quality and long service life.
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Eaf Refractories
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Product Description
The prefabricated parts of the electric furnace roof have the characteristics of high strength, good thermal shock resistance, erosion resistance, stable quality and long service life.
physical and chemical index
| Indicator ndex | Brand | YZJ-A | YZJ-B |
| Chemical composition (%) Chemical composition | Al₂O₃ (%) ≥ | 85 | 80 |
| Cr₂O₃ (%) ≥ | 1 | 3 | |
| Bulk density (g/cm³) Bulk density ≥ | 110℃ | 2.8 | 2.8 |
| Normal temperature compressive strength (MPa) . S ≥ | 110℃ | 30 | 30 |
| 1500 ℃ | 60 | 60 | |
| Linear change (%) | 1500 ℃ | ±0.3 | ±0.3 |
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Quliang Industrial Cluster Area, Xinmi City, Zhengzhou City, Henan Province