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alumina-magnesia castable
Alumina Magnesia Refractory Castables are refractory castables with corundum as aggregate, spinel material, and corundum powder as a matrix, and pure calcium aluminate cement as a binder. Its chemical composition is Al2O3 89%~93%, MgO 5%~8%. It has good corrosion resistance and slag penetration resistance and can be used as a large ladle lining for continuous casting.
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Alumina Magnesia Refractory Castables are refractory castables with corundum as aggregate, spinel material, and corundum powder as a matrix, and pure calcium aluminate cement as a binder. Its chemical composition is Al2O3 89%~93%, MgO 5%~8%. It has good corrosion resistance and slag penetration resistance and can be used as a large ladle lining for continuous casting.
Item | Specification | ||||
AMC70 | AMC80 | AMC85 | AMC95 | ||
Al2O3+MgO % | ≥70 | ≥80 | ≥85 | ≥95 | |
CCS, MPa | 110℃×24h | ≥20 | |||
1000℃×3h | ≥30 | ||||
Test Temperature×3h | ≥50 1500℃ | ≥50 1550℃ | ≥60 1550℃ | ≥60 1600℃ | |
PLC, % ℃×3h | -0.5~+1.5 1500℃ | -0.5 ~ +1.8 1550℃ | -0.2~+1.8 1550℃ | 0~ +1.0 1600℃ | |