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^REFRACTORY PRODUCTS
Product Information
PLAINTIFF'S EXHIBIT K-1530
SUPEREX* BLOCK INSULATION
Calcium Silicate Insulation in Block Form
DESCRIPTION
SUPEREX BLOCK INSULATION products are manufactured from care fully selected combinations of diatomaceous silica, other types of silica, lime, clays, and fibers for reinforcement purposes. During processing, the lime and silicas react to form the calcium silicate bonding system. These products are characterized by very high strength both cold and at elevated temperatures, and high refractoriness so they cam be used right up to their tem perature use limits and even beyond should upset conditions occur. They uniquely combine low thermal conductivity and high stability at elevated temperatures to provide efficiency of construction and thermal performance, and long maintenance-free service. SUPEREX BLOCK products contain no asbestos fibers and are not soluble in water. Repeated wettings have no effect on this insulation.
AVAILABLE FORMS
SUPEREX 2000 -To achieve low shrinkage at 2000F, the calcia content is reduced and density is increased. This assures that SUPEREX 2000 will perform reliably under the most rigorous high temperature conditions. Ever since its introduction, SUPEREX 2000 has demonstrated this reliability. Today for example, it econo mically insulates most of the blast furnace stoves in this country's steel-making plants.
SUPEREX 1600 - For this lower temperature product, the calcium silicate bonding reaction is increased, and density considerably reduced. As compared to SUPEREX 2000, it is a better insulator, it is stronger, and it is easier to handle and apply at its point of application. And, its readily reducible impurities such as iron and titania are lower than the most pure refractories. It can be used to insulate austenitic stainless steel.
SUPEREX 2000 SG & SUPEREX 1600 SG - These are composite insulation blocks of Superex bonded at the factory to a compressible blanket of fine, spun-attenuated glass fiber, 1000 SERIES SPIN GLASS*. SUPEREX 2000 SG was originally developed to aid steel
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Johns-Manville Greenwood Plaza, Denver, CO. 80217
Sect. 150 Part 10 Date H/lSyjijcais
EFENDANT'S
EXHIBIT
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SUPEREX BLOCK is good insurance, too. Any refractory construc tion can be expected to crack in service and allow full furnace temperatures into the back-up insulation. Its high refractoriness will help to prevent catastrophic failure of important equipment
and allow operation until a more convenient rebuild or repair time is reached.
While SUPEREX 2000 is being used satisfactorily as the exposed hot face lining of gas fired cyclically operated furnaces, we do not normally recommend this type of installation. Applications of this type should be carefully evaluated and receive extensive field testing. SUPEREX 1600 in particular, should be limited to back-up insulation. We normally recommend J-M ceramic fiber
products for exposed service in combustion atmospheres.
Some typical uses of SUPEREX BLOCK INSULATION are:
ovens soaking pits high temperature mains and flues industrial boilers marine boilers regenerators kilns
roasters reverbatory furnaces reheat furnaces
annealing furnaces heat treating furnaces combustion air piping bustle pipes blast furnace stoves glass lehrs car tops forge furnaces laboratory furnaces cooking equipment
PROPERTIES DATA
SUPEREX 2000
SUPEREX 1600
Normal Service Temperature, F (oxidizing atmosphere)
2000
1600
Marking
None
Green stripe on end
Density, lbs/cu ft
24 14
Modulus of Rupture,lbs/sq in
45
65
Compressive Strength, lbs/sq in to produce 5% deformation (2" thickness)
130
165
Linear shrinkage, % after 24 hours soaking heat
2.7 @ 2000F
1.4 @ 1600F
Chemical composition, %
Silica, Si02
74.8
49.6
Alumina,. AI2O3
4.3 1.2
PRODUCED JM-83
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Recovery of 3" SUPEREX 2000 SG After Compression
Compressed Thickness
Inch
2.90 2.75 2.50
%
97 92 83
Thickness of SUPEREX SG after release
(Percent of original thickness) AS Hot Face ot SUPEKEX (24 hour test;
Received
1600F
1800F
1900 F
99
99 99
99
99
97 97
97
95
93 93
93
STANDARD SIZES - All dimensions in inches
SUPEREX 2000 and 2000 SG
SUPEREX 1600 and 1600 SG
Thicknesses in inch increments
1 to 5 SUPEREX 2000
1 to 4 SUPEREX 1600
1*S to 6 SUPEREX 2000 SG
1*5 to 5 SUPEREX 1600 SG
Widths and Lengths
12 x 36 6 x 36
12 x 18
18 x 36 12 x 36
6 x 36 18 x 18
Beveled blocks are tapered to specific requirements. Outside diameter of circle is to be specified on order.
The physical (and chemical) properties shown herein represent typical values obtained in accordance with accepted test methods and are subject to normal manufacturing variations. They are supplied as a technical service and are subject to change without notice. Check the Johns-Manvilie district office to assure current information.
This is preliminary Product Information. It will be superceded by the Thermal Insulation Product Sheet when it is published.
Registered trademark of Johns-Mar.ville Sales Corp.
PRODUCED JM-83
J-M PACKAGE PRINTING LAYOUT
CANCELLATION: This layout cancels layout Form No. MG-1A --' dated 3/25/50
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Dated 5/26/50
J-M Plants M,R A V.
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