MARYLAND 3" #1 ARCH 9X4.5X(3-2 3/4") Great for Pizza Ovens

3" Series #1 Arch ASTM C-27 Medium Duty Alumina-Silica Fireclay Brick 9" x 4 1/2" (3"-2 3/4")

P.C.E. Cone 29 - 30 METHOD OF MANUFACTURE Dry Press CHEMICAL ANALYSIS (approximate) Silica [SiO2] 59.5% Alumina [Al203] 34.1% Ferric Oxide [Fe2O3] 2.1% Titania [TiO2] 1.8% Alkalies [Na2O + K2O] 1.9%

MODULUS OF RUPTURE 700 - 1000 psi APPARENT POROSITY 14% - 16% BULK DENSITY 129 lbs./cu.ft

Arch Info: To build a 45" arch span use 17 of these bricks for each row. This will give you a 4 1/2" thick 45" arch with an inside radius of 47 3/4" and a rise of 5 5/8".

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