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【CORUNDUM BRICK】

The corundum bricks are made to use artificial corundum as the main raw material. They have the following features： ‧High refractoriness and refractoriness under load. ‧The volume is stable at high temperature. ‧Good resistance to corrosion and abrasion. ‧Good spalling resistance.

＼　代號 Brand 特性質Properties	CRD-96	CRD-94	CRD-90	CRD-86	CRD-84	CRD-80
耐火度(SK) Refractoriness	＞40	＞40	＞40	＞39	＞38	＞38
氣孔率(%) Apparent Porosity	≦18	≦18	≦18	≦20	≦20	≦20
體密度(g/cm3) Bulk Density	≧3.10	≧3.00	≧2.90	≧2.80	≧2.75	≧2.70
耐壓強度(kg/cm2) Compressive Strength	≧850	≧800	≧800	≧700	≧600	≧600
荷重耐火度(T2)℃ Refractoriness Under Load	＞1700	＞1700	＞1650	＞1650	＞1640	＞1620
Al2O3(%)	≧96	≧94	≧90	≧86	≧84	≧80
高溫膨脹率(%) Expansion at 1000℃	＜0.9	＜0.8	＜0.7	＜0.7	＜0.6	＜0.6
再熱線變化率 after1500℃×2hrs Permanent Linear Change (%)	±0.1	±0.2	±0.2	±0.3	±0.4	±0.4
熱傳導率(kcal/m.hr.℃) 500℃ Thermal Conductivity 1000℃	3.5 3.7	3.2 3.3	2.7 2.8	2.4 2.5	2.2 2.3	2.0 2.0
用途 Applications	旋窯各式窯爐 Rotary kiln Various furnaces	旋窯各式窯爐 Rotary kiln Various furnaces	旋窯各式窯爐 Rotary kiln Various furnaces	各式窯爐 Various furnaces	各式窯爐 Various furnaces	各式窯爐 Various furnaces