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Acidic and neutral refractories

AP Series

In the chemical industry, acid-resistant bricks are used in reaction vessels, acid storage tanks, various wastewater tanks, while acid-resistant and heat-resistant bricks are used in furnaces and various ducts. Our company produces and supplies products that are suitable for customer demand by adjusting the absorption rate to create products with excellent acid resistance.
Item＼Product Acid-resistant bricks Acid-resistant and heat-resistant bricks
AP-S AP-1 AHP-1 AHP-2 AHP-3
Maximum Service Temperature(℃) 200 300 900 1100 1200
Absorption rate(%) 0.5 1.5 3.0 5.0 8.0
Bulk density 2.20 2.20 2.15 2.10 2.10
Cold Crushing Strength(N/㎟) 107.8 88.2 78.4 58.8 58.8
High-temperature linear expansion rate
(10%)(1000℃)		 - - - 0.5 0.5
Acid resistance(%) 0.3 0.3 0.5 0.8 1.5
Chemical Composition(%) Al₂O₃ - - 28 30 32
SiO₂ - - 69 67 65
Fe₂O₃ - - 2.0 2.0 2.0

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