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Item # Empire-S, Empire-S High Duty Brick (3000ºF 36% Alumina Hard Brick)

Foundry Service supplies Hard "Super Duty" and "Medium Duty" Fire Bricks that are rated for superior strength in applications of over 3000ºF (1650ºC). They exhibit low shrinkage, excellent thermal shock resistance, and good resistance to alkali and carbon monoxide disintegration.

Specifications  · Applications



2% TiO2
58.1% SiO2
36% Al2O3


133 lb/ft³
2.13 g/cm³

Maximum Operating Temperature

3123 ºF
1717 ºC

Cold Crushing Strength

3500 psi
24.1 MPa

Modulus of Rupture

1100 psi
7.6 MPa

Apparent Porosity

19 %

Standard Brick Sizes

9 x 4.5 x 2.5 in
9 x 4.5 x 3 in

Typical applications include structural furnace components (walls, floors, roofs, etc.), furnace flues, furnace stacks, rotary kilns, graphitizing furnaces, charcoal furnaces, zinc galvanizing furnaces, carbon baking pit furnace fluewalls and headwalls, air heaters, combustion chambers, blast furnace bottoms, glass tank lower checkers, boilers, and cyclones.


Data Sheet for Empire-S High Duty Brick (3000°F 36% Alumina Hard Brick)
(PDF, 33KB)

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Foundry Service & Supplies, Inc. | Heat And Corrosion Resistant Industrial Insulation & Construction Materials