Sunward Refractories

Products

High Alumina Bricks
Sunward’s high alumina bricks are made from superior grade mullite, bauxite and fused alumina. Each brick is formed by high pressure press and undergoes a sophisticated, controlled temperature firing process. These high-tech high alumina bricks are often used for ladles, torpedo car, and cement kilns. The advantages of Sunward’s high alumina bricks are :

Excellent spalling resistance
Excellent corrosion resistance

Specification

Brand	HS	HA	H1	H1-1	H2	H2-1	H3	H4
Properties	HS	HA	H1	H1-1	H2	H2-1	H3	H4
Refractoriness (SK)	40	39	38	38	37	37	36	35
Apparent Porosity (%)	≦18	≦20	≦22	≦18	≦26	≦20	≦26	≦27
Bulk Density (g/cm³)	≧3.00	≧2.85	≧2.60	≧2.80	≧2.30	≧2.55	≧2.15	≧2.10
Cold Crushing Strength (kg/cm²)	≧700	≧600	≧500	≧600	≧300	≧500	≧300	≧250
Chemical Composition (%) Al₂O₃ Fe₂O₃	≧90 ≦1.5	≧85 ≦1.5	≧70 ≦1.5	≧80 ≦1.5	≧60 ≦2.0	≧65 ≧2.0	≧50 ≦2.5	≧45 ≦2.0

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