Refractory Grade Brown Corundum Grains

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Specifications

Brown Fused Alumina
1 Al2O3: 95.0%min
2 Good Hardness & Toughness
3 Higher compressive strength
4 Heat-resistant propert

Brown aluminium oxide/brown fused alumina is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials


Physical and chemical analysis for brown fused alumina:

Purpose

Specification

Chemical composition(%)

Al2O3

Fe2O3

SiO2

TiO2

Refractory Grade

Size sand

0-1mm
1-3mm
3-5mm
5-8mm
8- 12mm                  

   95min

       0.3 Max

          1.5 Max

  3.0 Max

0-3mm
0-5mm
0-10mm
0-25mm

  95min

       0.3 Max

    1.5Max

 3.0Max

Fine powder

180#-0
240#-0
320#-0

94 Min

        0.5 Max

   1.5 Max

3.5 Max

Application

1. it are suitable for grinding high-speed,high carbon steel

2.high-grade refractory materials

3.abrasives tool

4.grinding and polishing

5.ceramics

6.LED

7.sandblasting

8.aviation

Packing

1.25kg woven bag,40 woven bags/jumbo bag.

2.25kg woven bag,40 woven bags/pallet

3.25kg paper bag,40 paper bags/pallet

4.25kg paper  bag,40 paper bags/paper box

Advantages

1. ISO certificated manufacturer

2. since abrasives services in 1995

3. one-stop services

3.we have own import and export company and professional sales team

4.production capacity: 3500mt per month

payment

1.30%T/T in advance,70% against B/L Copy

2.L/C at sight


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Q:Can you tell me the classification of fireproof sealing material.
Inorganic fireproof plugging material includs: organic fireproof plugging material, fire bags, warfare, fire collars, fire belt, fire prevention sealing strip, flexible fire protection coil, fireproof glue and so on. I hope my answer can help you. Thank you!
Q:What refractories are accessible with ease in daily life?
Refractory mortar. Thermal insulation refractory materials include diatomite products, refractory castables, monolithic refractories, carborundum bricks, gun-mix refractories, semi-silica bricks, borides, beryllia, silicide, calcium oxide, high alumina refractory brick, refractory coatings, corundum bricks, fireclay bricks, silicon nitride bonded silicon carbide bricks, chromium hemitrioxide and other refractories. What refractories can be found mostly in the market? Common refractories. Common refractories include silica bricks. The mostly used unshaped refractories include fettling, ramming refractories, castable refractories, plastic refractories, refractory clay, gun-mix refractory, sling refractories, refractory coatings, lightweight refractory castables, stemming etc. The mostly used insulating refractories include diatomite products, asbestos products, insulation panels, etc. The mostly used special refractories include AZS bricks.
Q:Which region use more refractory?
Tangshan of Hebei province, Jincheng of Shanxi province, Wuxi of Jiangsu province, Wuhan of Hubei province
Q:How to distinguish the fire resistant level of the rubber and plastic thermal insulation material?
It is divided into level A, B1, B2 and B3. According to the current "burning behavior of building materials classification method", Level A insulation material is a non-combustible material, which belongs to YT. However, from the point of view of the current market , level A insulation material are very few, only glass wool, rock wool board, foam glass and vitrified micro bead. However, compared with level A insulation material, the more welcomed by the market is the organic insulation material. This is characterized as thermal insulation material, which is divided into three levels: level B1 is flame retardant, level B2 is flammable and level B3 is flammable. The level B1 nonflammable thermal insulation material is determined according to the fire endurance of the material. And different parts of the material are divided differently! Such as the common EPS / XPS insulation boards through special treatment of adding flame retardant. . Level B2 combustible insulation material is commonly the EPS expanded polystyrene foam insulation board and XPS board, that is, the ordinary plate. This material has low ignition point, and releases large amounts of harmful gases in the combustion process . Level B3 flammable insulation material is commonly the thermal insulation material taking polystyrene foam as the main material. Since this material is highly flammable, it has been out of the external wall thermal insulation materials. As for the civil construction insulation materials, China's current popular building insulation materials in the market are mainly made of three organic foams: EPS (molded polystyrene board), XPS (extruded polystyrene board) and PU (polyurethane).
Q:What is the difference between the fire rating and the fire resistant level of the fire-fighting equipment?
Fire rating and fire-fighting rating are the misnomer to the building fire resistant level. The building fire risk is measured by fire resistant level. The article 3.2.1 and 5.1.7 of "Architectural design code for fire protection" have made provision respectively on the fire resistant level of plant (the storeroom) and civil construction. Article 3.0.2 of "Code for fire protection design of tall buildings" has made provisions on the fire resistant level of tall buildings. Fire resistance rating of the building is divided into four levels. Standard of fire resistance rating is determined by the combustion performance and fire resistance of the main housing member. Level one or two are in accordance with the Article 1.0.2 in this specification.
Q:What are the best refractory materials in 2,400 Celsius degree?
and carbon fiber or nanomaterials.
Q:Is it necessary for the frame of glass fireproof door to be crammed with fire-proof material?
Close the door , and check if the gap is normal, whether the hole and the door leaf are in the same plane, and whether the door leaf has tendency to fall down. Fire resistance steel door——means that use a cold rolled steel sheet as door frame, door plank and framework, and stuff a door leaf with incombustible material. If it is glass fireproof door, then the door frame should be equipped with fire-proof materials. I know a exclusive shop in Beijing dealing with fireproof doors, called Naecame.
Q:The primary problem, does the gas permeable brick is fired refractory bricks(refractory) ?
Yes. After moulding by casting in the firing of 1450 ° degrees.
Q:What are the specifications of fireclay bricks?
Specifications of fireclay bricks are shown in the figure;
Q:What are the raw materials of refractory? And what are their names?

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