High Temperature Process Furnaces Refractory & Insulation Products Back to Products Fire Brick Insulating Firebrick 20 23HS 23 Coarse 26 26 Coarse 28 28 Coarse 30 32 Temp. use limit 2000° F 2300° F 2300° F 2600° F 2600° F 2800° F 2800° F 3000° F 3200° F Density 36 42 44 48 49 55 56 65 72 MOR ASTM 133 95 140 115 200 180 220 210 250 300 CCS ASTM 133 105 190 140 270 240 340 290 440 450 Armil C.F.S. distributes a wide range of Insulating Firebrick for a variety of applications. Standard sizes are 9" x 4-1/2" x 2-1/2" and 9" x 4-1/2" x 3". Shapes such as arches and wedges are also available. Other sizes are also available. A more economical coarse insulating firebrick is also available in 9" x 4-1/2" x 2-1/2" straights in 2300°F and 2600°F grades. All of the above IFB is low iron. Use Armil CFS Hi Temp Mortar to lay IFB or Fireclay brick Fireclay Firebrick Armil CFS stocks a variety of High Duty, Superduty, and High Fired Superduty firebrick. Standard 9" x 4-1/2" x 2-1/2" and 9" x 4-1/2" x 3" brick are kept in stock. A wide variety of larger tile sizes are also stocked. Please contact us for a quotation ARMIL C.F.S., INC. 15660 LaSalle Street, South Holland, Illinois 60473 Phone: (708)339-6810 (800)565-0306 Fax: (708)339-0517 info@armilcfs.com