High-Alumina Brick Raw Materials:86% Al2O3 Round Kiln Calcined Bauxite

High-Alumina Brick Raw Materials:86% Al2O3 Round Kiln Calcined Bauxite

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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 to divide fire rating of decorating materials ?: level A: incombustible, B1: Flame retardant, Level B2: combustible, Level B3: Flammable.

Q: Development trend of refractories: Mullite Matrix clinker. There are higher requirements of kaolin and refractory annded life, it should be able to grind medical industrial raw materials alumina, vacuum extrusion molding, high temperature roasting and smelting from unshaped refractory material a good thermal mechanical properties in the kiln and has good application prospect; 2, Dong Qingshi clinker. With kaolin and magnesia as raw materials, wet grinding, vacuum extrusion, and then high temperature calcination, furniture has a very good prospect; 3, magnesium calcium sand. Because of the development of clean steel, low carbon steel, high oxygen steel and stainless steel, the basic importance of free calcium oxide refractories is supported; 4, fused eutectic composite. Bauxite based fused corundum, bauxite based fused mullite, bauxite based fused mullite zirconia, fused corundum zirconia fused zirconia, Magnesium Oxide and other materials have been developing rapidly; 5, high density spherical hollow mullite aggregate. The wall thickness of the shell of the 0.2 - 1.5 - 5 mm, diameter 40 mm, smooth surface, can not be uniform, spherical shell, this may be a double, a prominent part of the surface can be dense, can also be used for hollow casting material, not only can improve the insulation performance of the material, in order to reduce the volume density. Instead of destroying its strength.

Q: Who knows the classifications of magnesia refractory?: Magnesia chrome series products: The main ingredients of magnesium chromium series are MgO and Cr2O3. Periclase is the first phase and magnesia-chrome spinel is the second phase. Products belonging to this series are magnesium chrome brick and chrome magnesia brick. The main ingredients of magnesium aluminum series are MgO and Al203. As they generate MgO and Al203, all magnesium chromium series products contain magnesia material. magnesium calcium series products The main components are MgO and CaO. They have high melting points, which are important magnesia materials. 5, magnesium silicon series products: The main component of magnesite series is SiO2, when the C / S<5, SiO2 and MgO generate MgO.Al2O3 (forsterite). From the perspective of microscopic mineral, main products of pure aluminum series include magnesium aluminum brick, periclase spinel brick, corundum spinel brick and aluminum-spinel castable in unshaped materials. I hope this answer can help you.

Q: What are included in roof thermal insulation fireproofing material?: Aluminium foil, bubble, aluminium foil/air bubbles/fireproofing aluminium foil thermal insulation material, fireproofing bubble thermal insulation material, fire?retardant thermal insulation material, thermal insulation construction materials, aluminum foil insulation material.

Q: What's the maximum temperature that the refractory ceramic fiber cloth can endure?: While the refractory ceramic fiber cloth is different in high temperature resistance, and in general it can endure the high temperature of more than 1000℃. Ceramics in daily use and art ceramics: Bone china and Guangdong chinaware can generally endure the highest temperature of 1100℃. Jingdezhen porcelain and ceramics: They can generally endure the highest temperature of 1280℃-1340℃, and some special ones can endure the highest temperature of 1400℃. Industrial ceramics: Some of them can endure the highest temperature of about 2600℃. (alumina ceramics: their melting point is 2050℃, and boiling point is 3000℃).

Q: What is fireproofing material? Are fireproof materials the same thing with thermal insulation materials and refractories?: Insulation materials. Thermal insulation material is characterized by thermal insulation, which is one of the four traditional inorganic nonmetallic materials. Fire?retardant material is cahracterized by heat-resistant. Refractory is a kind of materials of resisit high temperature. Fireproof material, which is different from thermal insulation material and refractory, is a synthetic material with some fireproof subtrate added. It is essentially resistant to high temperature.

Q: What is shapeless refractory with high performance?: The popular ones are: Non-cement fine powder bonded castable is a functional refractory castable with nano material introduced.

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: how long is the fire endurance of plasterboard?: Gypsum board is flame retardant materials, combustion performance rating B1, but when mounted on a steel joist, it can be seen as rating A(non-combustible material) . So it is fine to use as a ceiling. You can randomly choose several samples to run some tests at the quality inspection insititute and the quality of these samples are subject to the testing results.