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Acidic and neutral refractories

H Series

High-alumina bricks (applicable to KSL3205) are products with AI₂O₃ content ranging from 45% to 80%, known for their excellent spalling resistance, abrasion resistance, and corrosion resistance, making them suitable for various applications.
Item＼Product H-S H-1 H-2 H-3 H-4
Refractoriness(SK) 39 38 37 36 35
Bulk density 2.40 2.30 2.20 2.10 2.10
Apparent porosity(%) 27.0 27.0 27.0 27.0 28.0
Cold Crushing Strength(N/㎟) 29.4 29.4 29.4 24.5 19.6
Chemical analysis temperature(2kg/㎠, T2℃) 1600 1550 1480 1460 1430
Residual linear expansion rate
(%)(1500℃ × 2hr)		 0.3~-0.5 0.3~-0.6 0.2~-0.6 0.2~-0.6 0.2~-0.6
High-temperature linear expansion rate
(10%)(1000℃)		 0.7 0.7 0.6 0.6 0.5
Chemical Composition(%) Al₂O₃ 80 70 60 50 45
SiO₂ 19 29 39 49 54

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