Al2O3 86% round kiln calcined bauxite for high-alumina brick

Al2O3 86% round kiln calcined bauxite for high-alumina brick

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000 m.t./month

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Specifications of high alumina bricks

1. AL2O3 : 45%-80%.
2. Can according to customers' requirements.
3. Used for steel ladle lining.

High alumina steel ladle fire brick,Steel ladle brick,Ladle brick

Al2O3 86% round kiln calcined bauxite for high-alumina brick

Application of high alumina bricks

High alumina brick is widely used for Widely used in blast furnaces, Hot Blast Stove, Steel ladle lining, Reheating furnace, Cement kiln,Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln , Steel smelting furnace and various kiln lining and thermal technical equipment, etc.

Features of high alumina bricks

1) High-temperature endurable .

2) Good thermal shock resistance .

3) Good resistance to abrasion and corrosion.

4) Good thermal shock and thermal spalling resistance.

5) High mechanical strength.

6) Good volume stability at high temperature.

Physical and chemical index of high alumina bricks

Item		Specification
Item		LZ-85	LZ-80	LZ-75	LZ-65	LZ-55	LZ-48
Al2O3		85	80	75	65	55	48
Apparent density		23	22	23	23	22	22
Cold crushing strength		65	55	50	45	40	35
RUL		1600	1530	1520	1500	1450	1420
PLC	1500.C*2h	0.1~-0.4
PLC	1450.C*2h						0.1~-0.4
Standards of Type Brick:		230mmx114mmx65mm 230mmx114mmx75mm Product Range: SK32,SK34,SK35,SK36,SK37,SK38

Specail Shape of High Alumina Brick

Al2O3 86% round kiln calcined bauxite for high-alumina brick

Q:How much is the content of boron carbide in refractory material?: Boron carbide is used in refractory material. For example, generally we could add 0.2% of boron carbide into magnesia carbon bricks. It is suggested that 0.5% is enough, because it has strong effect in boosting melt. It is said that 0.5% would be alright since boron oxide after oxidation belongs to material of low melting point, so the amount should be limited within 0.5%-1%,

Q:What are the main materials in concrete fireproofing material?: fireproofing materials mainly consist of class A incombustible?material and class B1 nonflammable material. Class A incombustible?material: Granite, marble, terrazzo, cement products, concrete products, gypsum board, lime products, clay products, glass, tiles, mosaics, steel, aluminum, copper alloy; class B1 nonflammable material: Ceiling materials, dry wall, fibrous plaster.

Q:Which refractory is better for building 1500 degree kiln ?: The top and wall use alumina hollow ball brick. If it is cubic kiln, the kiln bottom should use heavy corundum brick. If it is continuous kiln, burning zone should use alumina hollow ball brick, burning zone seal and kiln car face brick. If it is pit furnace, curved seal should use heavy corundum brick, and furnace wall and top should use alumina hollow ball brick. That depends on what kind of kiln it is. Curved seal and kiln car should use heavy corundum brick. You can add me friends to have further talks.

Q:What is the new fireproofing standard of external wall thermal insulation materials?: The civil builduing with thermal insulation material for exterior wall in the scope of construction fire safety design and fire inspection should put the combustion performance of building thermal insulation material for exterior wall into the content of review and acceptance. The civil builduing with thermal insulation material for exterior wall beyond the prescribed scope of Article 13, Article 14 of "Fire Supervision and Management Regulations of Construction Project" (Ministry of Public Order No. 106) should all be included in the scope of checks. Before released the new standard, it should be strictly implemented the Article II of "Provisional Regulation of Civil Building External Thermal Insulation System and Exterior Wall Decoration Fire Prevention" (known through word [2009] No. 46), the civil builduing thermal insulation material for exterior wall uses level A combustion performance material. I hope my answers are helpful to you.

Q:Refractory inquiries: Special refractories are new inorganic non-metallic materials developed on the basis of traditional ceramics and refractory materials.

Q:Please answer the questions about the packing and transportation requirements of refractory materials.. Requirements for packing of refractory bricks: Exports should be fumigated outside of South East asia. Pallet packing is the most common, convenient and inexpensive.

Q:How to divide the fire rating standards of insulation materials?: The fire rating classification standards of insulation materials, 1. Insulation materials with A-level combustion performance: inorganic fiber spraying, rock wool, glass wool, foam glass, ceramic foam, foam cement, close-celled perlite, etc. 2. Insulation materials with B1-level combustion performance: specially-treated extruded polystyrene boards(XPS)/ specially-treated Polyurethane(PU), Phenolics, Polystyrene rubber powder particles,etc. 3. Insulation materials with B2-level combustion performance: Expanded polystyrene sheets(EPS), Extruded polystyrene board(XPS), Polyurethane(PU), Polyethylene(PE), etc.

Q:Do you know where I can buy refractories?: A Address of Guangzhou Lingnan Refractories Co., Ltd. : No.1069 Guanghua 1st Road B Address of Guangzhou Aolian Refractories Co., Ltd. :

Q:I know which material is the fire resistance rolling shutter door: the materials of fire resistance rolling shutter door are: the inner of fire resistance rolling shutter door is generally filled with aluminum silicate fiber cotton. fire resistance rolling shutter door is divided into AAA inorganic fireproof rolling shutter door and steel fire resistance rolling shutter door. the fireproof?performance of inorganic fireproof rolling shutter door is better, but steel fire resistance rolling shutter door has a certain wind load resistance, which can be installed outdoors.

Q:How many external wall thermal insulation fireproof material are there: Inorganic active wall thermal insulation materials, cement foam thermal insulation board, glazed hollow bead insulation mortar, rock wool plate, glass wool plate etc., if used for external wall thermal insulation, rock wool board more frequently used.

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