Ultralow Cement Refractory Castables Product

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1) ISO9001:2000
2) Reputation and Quality first
3) Low cement castables, Ultralow cement
4) Non-cement, Mullite

1), Product Information

Our company is located in the national famous excellent quality bauxite region, which has large reserves bauxite, good quality, convenient transportation. That is the first choice of the production of refractory castable. Our production is 1000 tons per month at present.

*Refractory Castable Products

Low cement castablesUltralow cementNon - cementMullite
Chemical composition (%)AL2O3≥45≥70≥85≥45≥70≥85≥45≥70≥85≥45≥60≥70
Volume density≥2.3≥2.6≥3.0≥2.3≥2.6≥3.0≥2.3≥2.6≥3.0≥2.3≥2.3≥2.5
Bending strength (Mpa)110°C after drying at≥5≥8≥12≥4≥6≥10≥2≥3≥4≥4.0≥4.0≥4.0
°C×3h after fining at1350≥81350≥121500≥151350≥101350≥121350≥151350≥91350≥101500≥121350≥81350≥101350≥10
Crushing strength (Mpa)110°C after drying at≥20≥30≥40≥20≥30≥40≥10≥12≥15≥20≥20≥20
°C×3h after fining at1350≥401350≥501500≥601350≥501350≥601500≥701350≥501350≥701350≥801350≥401350≥451350≥50
°C×3h Linear change rate after firing (%)1350±0.51350±0.51500±0.51350±0.51350±0.51500±0.51350±0.51350±0.51500±0.51350±0.51350±0.51350±0.5
Serivce temperature(°C)140015001600140015001600140015001600140015001600

Main application: Widely used in various industry furnaces as refractory linings, such as blast furnaces, hot alr stove, reheating furnaces, soaking pit, water-cooling pipe binder, trough covers, steel ladle covers, electric furnaces roofs ceramic kilns, cement kilns, boilers, high temperature klins in the fields of petrochemistry and chemistry etc.

Remark: All products can be reinforced by steel fiber.


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Q:What kind of refractories do the anode baking furnace use?
Use refractory bricks.
Q:For refractory knowledge. What is the ratio of clay ramming mass?
Soil aggregates, dispersing agent, water reducing agent, plasticizer, binding agent and powder! ~ Bone meal feed approximately 6, OK
Q:How many grades of fire rating are there for interior decoration materials?
It can be divided into structural material and base material based on materials. It can also be divided into flammable, flame retardant and non-combustible materials based on fireproof types. There is no fire rating for materials. But lengths of time of flammability limits are different.
Q:Why can aluminium hydroxide not be used to make refractory material?
Hope my answer is helpful to you. It decomposes and produces aluminium oxide and water after heating, chemical equation for the reaction is: 2Al(OH)3=△=Al2O3+3H2O. Aluminium hydroxide can't be directly used to make refractory material because aluminium hydroxide is not stable.
Q:I would like to ask a friend that how much is the fire endurance of level A fireproofing glass?
the fire endurance of fire window is: class A window is not less than 1.2 hours, class B window is not less than 0.9 hours, Class C window is not less than 0.6 hour. technical requirements: 1, materials and accessories (1) the window frame is made by a certain strength of steel frame or wooden frame which is sufficient to safeguard the integrity and stability. (2) steel frame and mound layer can select galvanized steel sheet or stainless steel plate. Its selection standards should be in line with the provisions of Article 5.1. in GB12955 "Steel Fireproof Door General Technical Condition" (3) the selection standards of wood frame and mound layer should be consistent with the provisions of Article 5.1.1. in GB14101 "General Technical Conditions of Wooden Fireproof Door" (4 ) the inner filling material of steel and wood frame should be non-combustible material. (5) fireproofing glass can choose the qualified products in fire resistance test and not affecting the fire windows. light transmittance of glass is not less than 75% of identical layers of ordinary plate glass. ( 6) a sealing material between the frame and the fireproofing glass should use the nonflammable material, it can play the role of fireproofing and smoke insulation in the fire disaster. I hope I can help you
Q:For refractory, what is critical particle size? Thank you.
Q:What are the types of refractory sealant?
According to the environmental temperature of the region, it is divided into stpl-1 type, stpl-2 type, stpl-3 type. The three models are respectively applied to sealing repair of regular and irregular crack in asphalt / cement concrete roads, highways, airport runways, which are of different temperatures. Stpl-1 type: It is suitable for pavement temperature (0℃to 80 ℃) stpl-2 type: It is suitable for pavement temperature (-15℃to 60 ℃) stpl-3 type: It is suitable for pavement temperature (-30 ℃ to 40 ℃)
Q:How to classify fire resistance rating of brick-concrete structure?
In order to ensure the safety of the building, the fire protection measures must be taken to make it have a certain degree of fire resistance, even if there is a fire, it will not cause too much damage. According to the national conditions of our country, and in the light of other countries standards, < high-rise civil building fire protection design specification > defines fireproof rank of high-rise civil buildings into level one and two; < code for fire protection design of buildings > divides the rank into level one, two, three, four, level one is the highest level, level four is the lowest. Besides that the minimum fire resistance of the building component is specified, buildings of fire resistance rating also specified requirements for combustion performance. Because the component with the same fire resistance limit is different, it is different in the fire.According to our country national standard < building design fire protection code >, the fire resistance rating of the building is divided into four levels. The fire resistance of a building is determined by the combustion performance and fire resistance of building components (such as beams, columns, floors, walls, etc.). Generally speaking, the fire resistance building of level one is a mixed structure of reinforced concrete structure or a mixture of brick wall and steel concrete structure; the fire resistance building of level two is a mixed structure of steel truss structure, reinforced concrete column and brick wall; the fire resistance building of level three is brick-wood structure made of wood roof and brick wall; the fire resistance building of level four is combustible structure which is composed of wood roof and non-combustible wall.
Q:What's the commonly used refractory material for ladle?
Commonly used types of refractory material for ladle are as follows: high-alumina brick, clay brick, magnesia-carbon brick, aluminum carbon brick, magnesia chrome brick, spinel brick, corundum brick, high alumina castables, aluminum silicon carbide carbon castables, refractory castables for ladles, magnesium castables, magnesia chrome spray coating, dry vibration materials, etc. Hope it's helpful for you!
Q:What are grade classifications of the external walls fireproofing material?
1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials.

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