Document B8YOv6pNzbGXwYz221MxY5DGL

ANorth AmoriraTi R^frartnrJpc f^nmnanv ; NARCO SATISFIES INDUS! Technical advancement Is moving fastest in products known genetically as basic refractories. NARCO brands made from i varied proportions of chrome ore, magnesite (MgO) or dolomite are earning high regard in every industry where the basic brick have been put to the test in critical service situstlons. The performance of NARCO BASIC REFRACTORIES meets your expectations because every shipment reflects thorough research, laboratory control of batch formulations, ultramodern manufacturing facilities, and pride in good workmanship. The raw materials of NARCO BASIC REFRACTORIES are selected Philippine and Transvaal chrome ores, highest purity seawater peridase (MgO) clinker, and chemical bonding agents free from silica, lime or other deleterious factors. Precise grain sizing and maximum forming pressures con* tribute to the outstanding hot load strength of NARMAG brick. Extreme density of this series is the best defense against fumes ` CHEMICALUV BONDED-;f-'T.*. '. BURNEOi;`* A(8).- rn (BC)` PtAlNrMETAL--- . , INTERNALLY; PUtNS :- .'. . METAL* . *. ~r- ':T' v F&te.. ENCASE05-V .v>C PLATEOiV-': ........ ENCASEQi: S BASIC NEEDS --d slag attack. NARCO actually delivers mote refractory (by ( ght) per dollari in NARMAC DIRECT BONDED BASIC BRICK, the Ideal bond of periclase to chrome ore without any silicate 51a is achieved. Direct attachment of grains produces a new integrity of micro* structure from surface to deepest interior of the brick. Static firing technique, exclusive with NARCO, is used to achieve uni* form high temperature heat treatment in a motionless setting. NARTAR BASIC REFRACTORIES are specifically matched to the wear areas of the basic oxygen furnace working lining. These ere tar-bonded varieties developed to meet the Mearth* quake-toniado-voictno" conditions that come with each metal charge and input of oxygen. Magnesite and dolomite are bonded with pitch, and supplied unbumed or tempered. The brand NARTAR AI is given a special firing** BEFORE being impregnated with pitch. NARMAG chemically bonded 95% MgO brick in top courses of a checker setting resist high temperature cycling, oxidationreduction atmospheres, and severe bateh carry-over. The chart below is helpful in selecting NARCO BASIC REFRACTORIES for satisfactory performance in the areas designated. Service engineers are always pre* pored to answer questions on applications which may have new aspects. We invite your inquiries. ViHENY0U-ORDER'Irom'this-chart any other than plain brick, the trade name in the lelt hand column should fco- J 7 `.followed by appropriate initials [C, iC, B,`or BCl to precise.'/ identity the type of bond and plating.desired: Thus;; .NARMAG'.60 IC'designatesJhe chemically bonded internally plated basic retractor/, bricks*-.,..V,; ;-v. STATIC FIRING ASSURES ( THE ULTIMATE BOND A battery of bell-type kilos is now operating at NARCO's plant in Womelsdorf, Pa. Each kiln processes a carload of brick with no possibility of vibration to disturb compacted grains while direct bonding is under way. The bell kiln is un equalled for precise control of sustained high temperature heat treatment. Static-fired NARCO DIRECT BONDED BASIC BRICK have high strength at elevated temperatures, ultimate hot load-bearing abilities, low porosity, and the vol ume stability for today's furnace conditions. O^larco Specialties uritk 'Sasic Properties NARCHRQME MORTAR Heat-Set, with chrome ore base is furnished dry to be mixed with water for trowel joints, patching, or spray coating. Highly refractory with maximum resistance to basic and ferrous slags. NARCHRQME MORTAR Air-Set, mixes to consis tency- desired for laying or coating all basic brick as well as clay and high alumina brick. Defies highly cor rosive slags or oxides. Strong air-bond holds until ce ramic bond develops at high heat or cold. Also used around boiler tubes and headers, and forge or reheating furnace bottoms. NARMAG MC GUN MIX is an air-setung magnesitechrome (approximately 70*/* MgO} material especially adaptable for hot application with dry type notzle mix guns. May also be used as a ramming mi*, closely re lated to NARMAG 70 brick. Useful in maintenance of open hearth furnace walls, hot metal mixer Unings, soaking pit slag lines, etc NARMAG MORTAR contains over 95V* MgO in a dry. finely ground heat-setting periclase formulation. Da- J8 -signed for use with high purity basic brick (NARMAG ' B) and other NARCO basic types. Affords resistance to heat, chemicals, erosion. Easily prepared for troweling or dipping. NARCHRGME CASTABLE REFRACTORY mixes and pours like concrete. This is a chrome ore base, hydraulic setting material for service to 3000*F. Excellent resis tance to chemical attack by fluxes, basic slags, iron ox ide slags, and molten metals. Useful in patching walls and Soon of NARCHROME PLASTIC. NARCHRQME PLASTIC REFRACTORY comes ready to ram into place in walls end bottoms of furnaces, boil ers. etc. Develops hard, strong monolith upon drying, even greater strength when heated. Neutral chrome body is highly resistant to most slags and mechanical abrasion. NARMAG CM-18 GUN MIX Is a straight chrome ore material, air-setting, for application with dry type not- . ale mix equipment. Widely used as lining material for open hearth doors, runners, end veneering walls, hot NARMAG CM GUN MIX (approximately 40V* MgO] is an air-setting chrome-magnesite product similar to NARMAC 40 basic brick. Method of application and uses similar to MC MIX but-for conditions where 40*/* MgO is adequate--including lining open hearth runners. NARCOAT C is a specially developed basic spray ma terial for maintaining open hearth roofs. Gunned hot or cold with Narcoater slurry type gun. NARCOAT C extends life of suspended brick work, minimizes down time. saves labor, protects against emergency shut downs. NARMAG CLINKER is tooV* periclase grain, sized be tween 4 and 35 mesh. Spread loosely as a refractory bed, NARMAG CLINKER absorbs slag and seale. Crust that forms is easily removed from bottoms of slag-tap boilers, continuous pipe-welding furnaces, between skids of reheat furnaces, etc NARTAR RAM is a basic tar-ramming mix closely re lated to NARTAR BRICK made especially for use be tween the working lining and the back-up lining in oxygen vessels. NARTAR RAM. ready-to-use. is the preferred filler for voids or irregularities behind the working lining in BGFS. FOR SPECIFIC INSTALLATIONS, you may obtain the fullest information from our Technical Bulletins or consultation with experienced Service Engineers. All NARCO advisors are alert to current developments which point toward econ omies in heot enclosure installations. They can help you seleet THE EXACT REFRACTORY for most efficient and consistent control of thermal, mechanical, and chemical variants recognized as typical or unique in your processing. . NORTH:AMERICAN REERACTORIES! COMPANY/ V: i:-/v Gnerat Offices--CreyeIahdr.Ohtcr44114V'-; ` Districts.C BUFFALO, NEW Y0RK*;>r"L'^HOrSPRINGS; ARKANSAS*.-. : Sales- - CHICAGO;. ILLINOIS-'. NEW YORK, NEW YORKw.- v; vUiiiv * ''Offices**.' CINCINNATI, OHIO*./.' V. : PHILADELPHIA* PENNSYLVANIA* V?--*-. - . .* DCTROrr;.MlCHlGAMT>; P1TTSBUR6H..PENNSYLVAN1A^ PRODUCT" LOW-K NARCOCRETE NARCHROME TYPE7 SERVICE limit. f; a ***** Insulating Fireclay 2000 Semi-Insulating Fireclay 2450 installed: DENSITY' LBS.PER- . CILFK STANDARDCONTAlNEfr- ** * 63 50 Lb. Bags 78 100 Lb. Bags Chrome Ore 3000 159 100 Lb. Bags CRETE y **>*.. i * Pneumatic Gun-Placed Castables NARCOGUN AR NARCOCAST E.S. GUN NARCOCAST GUN Abr. Res. Fireclay Extra Strength Fireclay Fireclay 1200 2400 2600 114 100 lb. 8ag$ 127 100 Lb. Bags 127 100 Lb. Bags SUPER NARCOCAST GUN Fireclay 2800 131 100 Lb. Bags NARCOGUN 28 Fireclay 2800 123 100 Lb. Bags NARCO B.F. CASTABLE Fireclay 3000 132 100 Lb. Bags NARCOCAST 32 GUN GUNCRETE NARCOUTE GUN Hi-Alumina 3200 145 TOO Lb. Bags Abr. Res. Fireclay Insulating Fireclay 2400 2000 119 100 Lb. Bags 65 50 lb. Bags Fireclay and Hi-AIumina Gun-Placed Castables are also available in bulk containers. SUPER *:r NARCOCAST SUPER NARCOCAST is a special super duty castable for use up to 2800'F. where operating conditions are beyond the limits of standard castables. It is composed of a balanced blend of super duty fireclay and Is bonded by a high purity caicium-aiuminate cement. The important characteristics of low iron content, excellent volume stability and high refractoriness commend its use where the requirements are more severe than usual at the higher temperature limit. It is recommended for new monolithic construction, patching of ail types of furnace linings, soak ing pit covers, burner blocks, combustion chambers, door linings and incinerators. JR 11 ; Wtljj Iniy\. i, TTTT'T'V'3'rrn | n < i ; i. if'1j .wJjJJJ J-ri NARCOCAST 30 NARCOCAST 30 Is a 3000*F. high purity, low iron castable consisting of super duty calcined fireclays carefully combined with plasticizers and hydraulic binders, it possesses unusual volume stability and high bulk density. As added outstanding properties, it has high strength through its complete temperature range, with special emphasis on the interme diate temperature zone and better resistance to spalling. It has also been designed to withstand the effects of high sulphur fuefs, reducing and hydrogen atmospheres, fluctuating temperatures, erosion and abrasion. Recommended uses are for new monolithic construction, patching in forge furnaces, billet and slab heating furnaces, burner blocks, car tops, soaking pit covers, non-ferrous melting furnaces, crucible furnaces, ladies and others. NARCOCAST 60 NARCOCAST 60 is a hydraulic-setting, high alumina low iron 3100*F. castable. The important characteristic of this material is its outstanding spelling resistance. The high alumina content of NARCOCAST 60 as sures maximum resistance to vitrification as well as increased density. These properties in addition to compatibility with various furnace atmos pheres assure long service under many severe operating conditions. .N. AR-C--O-CAA S,T_32_ NARCOCAST 32 is a high alumina castable suitable for service up to 3200'F. NARCOCAST 32 possesses good volume stability and resistance to vitrification and spatting. Its composition provides excellent resistance to iron oxide scale attack, furnace fumes and atmospheres. NARCOCAST 32 is available In 100 lb. moisture-resistant bags. * LOW-K LOW-K is a lightweight hydraulic-setting castable for use to 2000'F. It was designed to provide an additional margin of strength without im pairing its insulating properties. Load conditions, as found in furnace foundations and hearths, are often too great for conventional insulating castables. LOW-K provides a structural sound protective heat barrier to meet these conditions and other applications requiring additional strength. LOW-K is supplied in SO lb. bags and requires only 63 pounds of material per cubic foot of construction. NARCOCRETE NARCOCRETE is an insulating, hydraulic*setting castable that com bines low density and abrasion resistance with refractoriness. It is suit able for use at temperatures up to 24S0*F. and is shipped in 100 pound moisture-resistant bags requiring 6S pounds of material per cubic foot of construction. NARCHROME CASTABLE NARCHROME CASTABLE REFRACTORY is a chrome ore base, hy draulic-setting material which 1$ recommended for temperatures up to 3000*F. To use, mix with clean water to the desired consistency and then pour like concrete. It has excellent resistance to chemical attack by fluxes, basic slags and moiten metals. It may be used for walls and floors of water-cooled boiler furnaces and lower walls and hearths of heating furnaces where high iron oxide slags normally cause severe erosion and abrasion. NARCHROME CASTABLE is supplied dry in 100 pound bags and approximately 168 pounds of material is required to cast one cubic foot of lining.