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【ZIRCON BRICK】

　Zircon bricks are made of zirconium silicate (ZrO2.SiO2) as the main raw material. Zirconium silicate is still stable at 1600℃,So zircon bricks have a stable volume at high temperature、 high resistance to slag corrosion and good spalling resistance.

＼　代號 Brand 特性質Properties		ZR-30	ZR-50	ZR-55	ZR-60	ZR-62
體密度 (g/cm3)Bulk Density		≧3.10	≧3.30	≧3.45	≧3.50	≧3.60
氣孔率 (%) Apparent Porosity		≦21	≦20	≦20	≦21	≦20
耐壓強度 (kg/cm2) Compressive Strength		≧500	≧400	≧500	≧500	≧500
荷重耐火度 (T2)℃Refractoriness Under Load		＞1500	＞1450	＞1500	＞1600	＞1550
高溫膨脹率 (%) Expansion at 1000℃		0.6～0.8	0.4～0.6	0.4～0.6	0.4～0.6	0.4～0.6
熱傳導率(kcal/m.hr.℃) Thermal Conductivity	500℃ 1000℃	1.7 1.8	1.4 1.6	1.3 1.5	1.2 1.5	1.2 1.5
化學成份 (%) Chemical Composition	ZrO2 SiO2 Al2O3	30 20 42	50 34 10	55 35 6	60 30 4	62 34 ---
用途Applications		玻璃窯 Glass furnace	流鋼嘴座 Nozzle seat	盛鋼桶 Ladle	盛鋼桶Ladle	盛鋼桶玻璃窯 Ladle Glass furnace