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Microporous aluminum-carbon brick

Microporous aluminum carbon brick with high quality bauxite clinker, corundum, graphite as the main raw material, mixed with a variety of micro-powder additives, with a good micro-pore index, excellent alkali resistance, high thermal conductivity, suitable for different furnace capacity blast furnace waist, furnace belly, cooling wall and other parts.

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Refractory materials for the iron and steel industry

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Brand	Firing			Don't burn Unburned
Index	WLT-1	WLT-2	WLT-3	BLT-1
Al₂O₃ (%)≥	65	60	55	60
Fe₂O₃ (%) ≤	1.5	1.5	1.5	1.5
C(%) ≥	11	11	9	11
Bulk density B · D(g/cm³)≥	2.85	2.65	2.55	2.65
The apparent porosity A · P(%) ≤	16	17	18	17
Normal temperature compressive strength C · C · S(MPa)≥	70	60	50	45
透气度Breathability(mDa) ≤	0.5	1.0	2.0	2.0
平均孔径Average pore diameter(μm)≤	0.5	1.0	1.0	1.0
Pore volume(%) ≥ ≤ 1μm	80	70	70	50
1100 ℃ hot metal melting index (%)≤ Molten iron corrosion index	2	3	4	7
Alkali resistance A · R (strength change rate)(%) ≤	10	10	15
Thermal conductivity at 800 ℃ T · C[W/(m · K)]≥	13	13	13	10