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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".
Click here for Standard Firebrick Sizes
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