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Sintered Microporous Alumina Carbon Brick

Fired alumina–carbon brick with a microporous structure, excellent resistance to alkali and titanium slag attack, non-wetting to slag and melt, and high strength. Grades WLT1 and WLT2.

Grades / types: WLT1, WLT2

Product overview

Sintered microporous alumina carbon brick has excellent resistance to alkali attack and to titanium slag attack, and is non-wetting to slag and high-temperature melts. It has excellent thermal shock resistance, high strength and excellent oxidation resistance.

Key characteristics

Excellent alkali corrosion resistance
Resistance to titanium slag attack
Non-wetting to slag and high-temperature melt
Excellent thermal shock resistance
High strength and excellent oxidation resistance
Microporous structure: average pore size ≤ 0.5–0.7 μm

Technical data

Physical and chemical specification
Property	Unit	WLT1	WLT2
Al₂O₃	%	≥65	≥60
C	%	≥11	≥11
Cold Crushing Strength (CCS)	MPa	≥70	≥60
Bulk Density	g/cm³	≥2.85	≥2.65
Apparent Porosity	%	≤16	≤17
Molten Iron Corrosion Index	%	≤2	≤3
Thermal Conductivity (Room Temperature)	W/(m·K)	≥16	≥16
Thermal Conductivity (300℃)	W/(m·K)	≥15	≥15
Thermal Conductivity (600℃)	W/(m·K)	≥14	≥14
Thermal Conductivity (800℃)	W/(m·K)	≥13	≥13
Alkali Resistance (Rate of Strength Change)	%	≤10	≤10
Air Permeability	m²(mDa)	≤4.94×10-10(0.5)	≤1.97×10-9(2.0)
Average Pore Size	μm	≤0.5	≤0.7
＜1μm Pore Volume	%	≥80	≥70