RISING monolithic refractory materials — Representative image of the product family · Monolithic Refractories

Alumina Magnesia Castable

Hydration- and coagulation-bonded alumina–magnesia castable for ladle and tundish linings, with high resistance to slag penetration and erosion, good spalling resistance and volume stability. Grades AMC70 to AMC95.

Grades / types: AMC70, AMC80, AMC85, AMC95

Product overview

Alumina magnesia castable is bonded mainly by hydration and coagulation and is used as a lining material for ladles and tundishes. It has high resistance to slag penetration and erosion, and the lining as a whole has good spalling resistance and good volume stability.

Key characteristics

Hydration and coagulation bonding
High resistance to slag penetration and erosion
Good spalling resistance of the lining
Good volume stability

Technical data

Physical and chemical specification
Property	Unit	AMC70	AMC80	AMC85	AMC95
Al₂O₃+MgO	%	≥70	≥80	≥85	≥95
Bulk Density	g/cm³	≥2.6	≥2.8	≥2.85	≥2.95
Cold Crushing Strength (CCS) (110℃×24h)	MPa	≥20	≥20	≥20	≥20
Cold Crushing Strength (CCS) (1000℃×3h)	MPa	≥30	≥30	≥30	≥30
Cold Crushing Strength (CCS) (Test Temperature×3h)	MPa	≥50 (1500℃)	≥50 (1550℃)	≥60 (1550℃)	≥60 (1600℃)
Permanent Linear Change (PLC) (℃×3h)	%	-0.5~+1.5 (1500℃)	-0.5~+1.8 (1550℃)	-0.2~+1.8 (1550℃)	0~+1.0 (1600℃)