Permanent layer castable
Zhongruixin's permanent layer castable have good fluidity, easy construction, good resistance to dry cracking and vibration, and can meet the harsh conditions of tundish recycling. Moreover, it has good resistance to the erosion and infiltration of the tundish slag and molten steel, as well as good resistance to thermal spalling and structural spalling.
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Permanent layer castable
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Zhongruixin's permanent layer castable have good fluidity, easy construction, good resistance to dry cracking and vibration, and can meet the harsh conditions of tundish recycling. Moreover, it has good resistance to the erosion and infiltration of the tundish slag and molten steel, as well as good resistance to thermal spalling and structural spalling.
Grade
YJ-60 YJ-65 YJ-70 YJ-75 YJ-80 Chemical composition
AI2O3 ≥60 ≥65 ≥70 ≥75 ≥80 Volume density
110℃x24h ≥2.3 ≥2.4 ≥2.5 ≥2.6 ≥2.7 Compressive strength
110℃x24h ≥30 ≥35 ≥40 ≥40 ≥40 1400℃x3h ≥40 ≥40 ≥45 ≥50 ≥55 Linear change rate
1400℃x3h ±0.5 ±0.5 ±0.5 ±0.5 ±0.5
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