Zhengzhou Xinyu Import Export Trade Co., Ltd.
Zhengzhou Xinyu Import Export Trade Co., Ltd. Provide a strong guarantee for industrial kilns！
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Precast blocks for EAF roof/Used for the top of electric furnace/High strength,good thermal shock resistance
Product description:
These products are made by steel fibre reinforced ultra-low cement castables with corundum,spinel and mullite as the main materials,and characterized with high strength,good thermal shock resistance,good erosion resistance and long service life.
Category of Refractory Brick/Fire Brick:
Corundum+electrofused spinel+electrofusion mullite
Features: The products have good thermal shock resistance, erosion resistance and strong scouring ability.
Physical and chemical indicators:
| Brand | XY-DSY-80 | XY-DSY-85 | XY-DSY-90 | XY-DSY-92 | |
|---|---|---|---|---|---|
| AL2O3+MgO/% | 80 | 85 | 90 | 90 | |
| Cr2O3/% | -- | -- | -- | ≥2 | |
| Bulk density/g﹒cm-3,≥ | 110℃,24h | 2.75 | 2.90 | 3.05 | 3.05 |
| Crushing strength/ MPa,≥ | 110℃,24h | 40 | 40 | 40 | 40 |
| 1500℃,3h | 60 | 60 | 60 | 60 | |
| Permanent linear change/% | ±0.5 (1500℃,3h) | ±0.5 (1500℃,3h) | ±0.5 (1500℃,3h) | ±0.5 (1500℃,3h) | |
Production and inspection :