High Alumina Bricks - High Alumina Bricks

High Alumina Bricks

It has small bulk density, high compression strength , low thermal conductivity, excellent heat insulation performance, stable quality, etc, It can be used as the lining or heat insulation layer of various high-temperature kiln.

In spite of complying with the burning up the additives method and mechanical producing one-off molding method regulated by international standard, we also reserve the traditional foam lightening producing technique in production process. We

Use the above methods to cast and mold. The structure of the section of products os even and the pores have separated cellular structure that make the compression strength and heat insulation performance of the products reach the top level. Due to the cutting and shaping of the six facets of the products and the deviation of the overall dimension of the products is small; the products can meet the special demand of building up the kilns.

High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9

2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1

4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2