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 triangular area of cover of electric furnace/Resistance to steel slag/Air scour
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.
| Brand | XY-DSY80 | XY-DSY85 | XY-DSY90 | XY-DSY92 | |
| Al2O3+MgO/%,≥ | 80 | 85 | 90 | 90 | |
| Cr2O3 | -- | -- | -- | 2 | |
| Bulk density/ g﹒cm-3,≥ | 2.75 | 2.90 | 3.05 | 3.05 | |
| Cold crushing Strength/MPa | ≥40 (110℃,24h) | ≥40 (110℃,24h) | ≥40 (110℃,24h) | ≥40 (110℃,24h) | |
| Cold crushing Strength/MPa | ≥60 (1500℃,3h) | ≥60 (1500℃,3h) | ≥60 (1500℃,3h) | ≥60 (1500℃,3h) | |
| Permanent linear change/ % | 1500℃,3h | ±0.5 | ±0.5 | ±0.5 | ±0.5 |
Production and inspection :