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andalusite High-alumina Brick

The main mineral phases of andalusite High-alumina Brick are andalusite, mullite and corundum.The remarkable feature is that the anti peeling performance of the product is very good, and the volume expands slightly when used at high temperature, which ensures the tightness of masonry structure. The product is first-class qualified product.

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Description

1,Product description:
The main additive of the product is imported South African andalusite, cooperate with high-grade bauxite and other raw materials and is fired at a high temperature above 1450℃. With its unique internal mineral facies structure, the product has a thermal shock resistance of more than 30 times. In addition, its high temperature performance, slag corrosion resistance and creep rate are also excellent. Therefore, the product has been widely used in hot blast stoves, ladles, coking furnaces and other high temperature industrial furnaces.

2,Index:

Item	JA-55	JA-60
Al2O3 %	≥55	≥60
Fe2O3 %	＜1.0	≤1.1
K2O + Na2O %	≤1.0	≤0.5
Apparent porosity %	≤24	≤20
Bulk density g/cm3	≥2.40	≥2.45
Cold crushing strength Mpa	≥40	≥49
Modulus of rupture Mpa	≥15	≥17
Refractoriness under load KD,℃	T2≥1580	≥1600
Creep 0.2Mpa×50h %	1450℃x(20-50)h ≤0.2	1350℃x(20-50)h≤0.3
Permanent linear change %	1500℃×4h ±0.2	1450℃×2h ±0.2
Thermal shock resistance ,times	≥20	≥20

3,Product characteristics:

Adding 20-30% andalusite or pure andalusite brick to high alumina brick can improve the thermal shock resistance of the original product from 8 times to 30 times, which greatly improves the use effect of the product. andalusite high alumina bricks are well used in hot blast stoves, kiln cars and other industrial furnaces.
The color of the product is white, slightly speckled, andalusite raw materials are imported from South Africa.

4,Product packaging:

use safe, firm and moisture-proof packing suitable for land and sea transportation

5,Our service:

1)Provide free technical advice for users

2)Free for users to provide product application description

3)Free for users to provide product configuration design scheme

4)Free for users to provide sample,for user testing

6,Our advantages:

1)Professional,with more than 20 years of refractory production and operation, stronger technical exchanges and services

2)We have our own Refractory material product production cooperation factory

3)We have our own Graphite Electrode product production cooperation factory

7.Good feedback of product use effect,the products have been exported to South Korea, Japan,Morocco and India.