heat treat 7/20/00 2:51 pm page 1 refractories for...
TRANSCRIPT
Saint-Gobain Industrial Ceramics (SGIC) produces high-per-
formance refractories that stand up to the demands of tough
heat treating applications. At temperatures where other prod-
ucts warp, craze and crack, our products are engineered to
maintain dimensional integrity.
SGIC manufactures a variety of products specifically for
annealing specialty steels and for sintering powdered metal or
carbon/graphite parts. Our refractories are engineered for
longer life, dimensional stability, and chemical compatibility.
We understand that our refractories are an integral part of
your day-to-day operation and that you need maximum
performance with minimal variability. Our marketing team is
a unique combination of engineers and materials scientists
who will work with you to design, engineer and deliver the
high performance refractories you require.
Saint-Gobain Industrial CeramicsRefractories for Heat Treating Applications
At our Northboro and Worcester, Massachusetts R&D
facilities, we engineer advanced materials and products as
well as provide solutions to customers’ applications. For
example, salt and pepper kiln furniture (alumina and (SiC))
and mullite coatings for SiC were developed for applications
where chemical compatibility and purity were concerns.
In addition to our engineering services, we can provide
a range of R&D capabilities which include:
R & D capabilities include:
■ Localized chemistry and microscopy with a scanning
electron microscope (SEM)
■ X-ray diffraction for phase analysis
■ X-ray radiography for non-destructive evaluation
■ Wet chemistry
■ Mechanical testing at room and high temperatures
■ Creep, tension and compression measurements
■ Carbon, nitrogen and oxygen analysis
■ Particle size analysis
■ Oxide firing capabilities to 1700˚ C
■ Atmosphere firing to 2100˚ C
■ Finite element analysis (computer modeling)
Products backed by superiorresearch and engineering
Cover Photography courtesy of:
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Alundum® and Alfrax® high-purity alumina brick offer
exceptional purity required in atmosphere furnaces.
SiC muffles are a high performance, low
cost alternative to alloy muffles. SiC
provides excellent thermal conductivity
and good corrosion, thermal shock and
wear resistance.
High purity alumina muffles provides
exceptional purity required in atmosphere
furnaces; they have good hot strength
and wear resistance.
Hearth plates
Muffles
BrickSiC plates provide superior oxidation resistance,
wear resistance, thermal efficiency and strength.
Alumina and Mullite plates provide good strength
and purity in atmosphere furnaces where chemical
compatibility is important.
For more information, please fax
or mail the enclosed fact sheet,
visit our website or call your
SGIC application engineer.
Tel: 508-795-2195 • Fax: 508-795-5011Website: www.nortonrefractories.com
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SiC and Alumina kiln furniture enhance productivity in
demanding applications. They deliver thermal shock
resistance, chemical compatibility,
creep resistance, oxidation resist-
ance and dimensional stability.
Crystar® RB and Silit SK® SiC radiant tubes provide greatercorrosion and temperature resistance than alloys. SGIC is the first manufacturer in the U.S. to produce these gas-tight tubes.
SiC beams offer excellentstrength and oxidationresistance. Saint-Gobain is the leader in engineeringLO-MASS® SiC designsused to increase settingspace in load-bearingapplications.
Radiant Tubes®
Kiln furniture(e.g., setters, saggers, pusher plates, batts, “boats”)
Beams
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Hearth Plates Muffles Brick, Block, ShapesAlundum®/Mullfrax®/Mulnorite Alundum Dense High Purity Alundum/Mullfrax/MulnoriteAlundum Dense High Purity Cryston/Refrax Alundum Dense High PurityCrystolon® Carbofrax® Alundum Insulating High PurityCryston®/Refrax® Crystar/Advancer®/Crystar RB/Silit SK® Alfrax® Insulating High Purity
Radiant Tubes Kiln Furniture BeamsCrystar® RB/Silit SK Alundum/Mullfrax/Mulnorite Crystar/Advancer/Crystar RB/Silit SK/
Crystolon Hexoloy®
Cryston/RefraxCrystar/Advancer/Crystar RB/Silit SK
Product Availability
Features and Benefits
Alundum/Mullfrax/Mulnorite
Excellent thermal shock resistanceGood creep resistanceChemically compatible with most products
99.55% AluminaExcellent strength at temperatureWear resistanceGood thermal shock resistance compared
to other high Alumina refractories
Superior creep resistanceSuperior strengthSuperior oxidation resistanceSuperior thermal conductivity
DryGood oxidation resistanceGood thermal conductivity, creep
resistance, and wear resistance
DryExcellent oxidation resistanceExcellent thermal conductivity, creep
resistance, and wear resistance
DryGood oxidation resistanceGood thermal conductivityGood creep and wear resistance
99.2% AluminaLight weight, low heat capacity, low
permeability, minimal reheat change
99.8% AluminaStrongest high-purity bubble brick on
the market
Can be used in fast-fire furnacesExcellent dimensional stability throughout the life of the productCan be used in most applications without setting sands/wash
Minimal fall-out*, even in dry hydrogen at elevated temperaturesLong-term creep resistanceLong life in abrasive applicationsCan be used as hearth plates and kiln furniture
Negligible fall-out*, even in dry hydrogen at elevated temperaturesCan be used as hot face refractory
Negligible fall-out* in dry hydrogen below 2300°FExcellent insulating properties for hydrogen atmosphere furnaces
Will not glaze while in serviceIncreased life, even in oxidizing atmospheresCan be used in fast cycle pusher or roller hearth kilnsExcellent material for hearth plates
Will not glaze while in serviceExcellent life, even in oxidizing atmospheresCan be used in fast cycle pusher or roller hearth kilns and is an
excellent material for muffle sections and hearth plates
Thinner cross sections increase available space and decrease kiln furniture mass
Superior life in oxidizing atmospheresSuperior thermal shock resistanceImproved furnace efficiency
Will not glaze while in serviceIncreased life, even in oxidizing atmospheresCan be used as a muffle in fast-cycle pusher or belt furnaces
Product Features Benefits
* Recondensing of impurities which were reduced and volatilized in the hot chamber.
Crystar/Advancer/Crystar RB/Silit SK/Hexoloy
Carbofrax
Cryston/Refrax
Crystolon
Alfrax Insulating High Purity
Alundum Insulating High Purity
Alundum Dense High Purity
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Saint-Gobain Industrial Ceramics makes high-performance refractories to meet virtually any industrial need.For detailed information about products that address specific industry concerns, please contact us at 508-795-2195.
Fax: 508-795-5011 • Website: www.nortonrefractories.com
Saint-Gobain Industrial Ceramics, Inc. • 1 New Bond Street • P.O. Box 15136 • Worcester, MA 01615-0136
INDUSTRIAL CERAMICSSAINT-GOBAIN
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