Document 06k0zKRKY4xM4NLBLy3Md2JMJ
INSULATING FIRE BRICK
Specification Data
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Temperature Limit
Approximate Density Transverse Strength Cetd Crashing Strength Linear Shrinkage
Reversible Thermal Expansien
JM-3000 JM-26
JM-26
3000F** 2800F** 2600F**
65 pcf 200 psi 400 psi f0J%et 3000F 054.1% at 2000F
56 pcf 175 psi 300 psi 1.0% at 2800F 0545% at2000F
51 pcf 140 psi 210 psi 1.0% at
2600F 0541.6% et2000F
JM-23
JM-20
2300F** 2000F**
44 pcf 130 psi 200 psi 0.3% at 2300F 0.546% at2000F
33 pcf 100 psi 150 psi 0.0% at 2000F 05-05% at2000F
JM-1620 2000F*** 1600F**
31 pcf 60 psi 120 psi 0.0% at 2Q00F 050.6% at2000F
The figures linn in mis tame srt eeerifi values oAUmed in accordance with accepted test methods.
'Back-up or taoosad.
"''Back-up only.
t24.hr Simulative Service Panel Test: all others 24-hr soakms period.
Type
JM-3000 JM-28 JM-26 JM-23 JM-20 JM-1620
Ne.ef Brick perCertaa
COMPLIANCE WITH GOVERNMENT SPECS
THERMAL CONDUCTIVITY
JM-20 complies with MIL-B-16305A, Class A
STANDARD SIZES
Type
JM-3000 JM-28 JM-26 JM-23 JM-20 JM-1620
Size
Accurately sized in all standard 9 in. shapes of the 216 and 3 in. series, as well as special shapes.
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MEAN TEMPERATURE. F
500 1000 1500 2000
JM-3000
322 3.30 3.37 3.46
JM-28
2.55 2.80 3.06 322
JM-26
222 2.44 2.68 2.93
JM-23 JM-20 JM-1620
1.51 1.91 231 2.70
0.91 1.10 129
_
0.77 1.02 1.27
_
CONDUCTIVITY: BTU IN. PER SQ FT PER F PER HR
IN-281 A
12-5?
Johns-Manville
General Headquarters: 22 East 40th Street, New York 16, N. Y. Offices in all large cities
LITHO IN U.S.A.
type: Brick temp limit: 3000F
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J-M INSULATING FIRE BRICK
| DESCRIPTION: Johns-Manville produces six types of Insulating Fire Brick to provide opera tors and builders of high temperature equipment six opportunities to get the one insulating fire brick that's right for a given service.
Each type of J-M Insulating Fire Brick has the correct balance of thermal and physical properties for its recommended service. All six types offer light weight, low conductivity and high structural strength.
Made from high quality refractory clays (plus alumina in the case of JM-3000), these insulating fire brick contain a carefully graded organic filler which is burned out during manufacture to give a uniform,'controlled pore structure.
AVAILABLE TYPES: JM-3000*--for temperatures to 3000F exposed.
JM-28--for temperatures to 2800F exposed.
JM-26--for temperatures to 2600F exposed.
JM-23--for temperatures to 2300F exposed.
JM-20--for temperatures to 2000F exposed.
JM-1620--for temperatures to 1600F exposed; to 2000F back-up.
*JM-3000 Iniulitini Firt Brick is the newest of the sis types. It provides lonf.hfe insulstion et e lull 3000F, in beck-up or direct exposure service, end is molded from specielly selected keolin cleys plus elumme.
USES: Recommended for use as refractory lining or as back-up insulation behind other refrac tory protection in kilns, furnaces, flues, refining ves sels, regenerators, gas producers and mains, soaking pits, stress-relieving furnaces, reactor chambers and similar high temperature industrial equipment.
ADVANTAGES
High Insulating Value
The light weight and high insulating value of J-M In sulating Fire Brick make possible thinner furnace walls, improved efficiency and lower operating costs.
Quick Heat Up
Furnaces can be brought up to operating temperatures with unusual speed, resulting in increased production.
+ 3000F
INSULATION
type: Brick temp limit: 2500F
* s
J-M SIL-O-CEL8 INSULATING BRICK
| DESCRIPTION: Made from diatomaceous silica, a material composed of millions of micro scopic cells that offer maximum resistance to heat flow, Sil-O-Cel Insulating Brick are particularly useful where high load-bearing characteristics are required. Sil-O-Cel Insulating Brick are furnished in three types for use as back-up insulation behind refractory fire brick linings or behind insulating fire brick linings. The new Sil-O-Cel 16L brick may also be used for exposed as well as back-up service.
AVAILABLE TYPES:
Sil-O-Cel Insulating Brick are furnished in three different types as follows:
Sil-O-Cel Super--for temperatures to 2500F back up only.
Sil-O-Cel C-22--for temperatures to 2000F back up only.
Sil-O-Cel 16L--for temperatures to 1600F back up or exposed.
USES: Sil-O-Cel Insulating Brick are recom mended for use as back-up insulation in furnaces, kilns, hot blast stoves, soaking pits, boiler walls, oil heaters, regenerators, and similar high temperature equipment in the steel, chemical, ceramic, power, petroleum and glass industries.
ADVANTAGES
Good Insulating Value
Used as back-up insulation, Sil-O-Cel Insulating Brick make it possible to reduce the necessary thickness of the exposed refractory as much as one-third. This re sults in substantial savings in furnace wall construction for all the types of high temperature equipment for which these brick are recommended.
High Load Bearing Strength
Sil-O-Cel Insulating Brick are made from diatomaceous silica, a natural fossilized material which imparts to the finished brick great strength. The Sil-O-Cel C-22 brick, for example, has a cold crushing strength of 700 lbs per square inch.