Fireclay brick and sillimanite brick for Glass furnace-BUILDING MATERIALS INDUSTRY REFRACTORY MATERIALS FOR GLASS KILNS-SHANDONG LUQIAO NEW MATERIAL CORP., LTD.

Fireclay brick and sillimanite brick for Glass furnace

Items	Special clay brick	Low AP clay brick	Sillimanite brick
Items	Special clay brick	Low AP clay brick	SDS60	SDS65
Al₂O₃ %	≥45	≥42	≥60	≥65
Fe₂O₃%	≤1.3	≤1.5	≤1.0	≤1.0
Apparent porosity/ %	≤14	≤15	≤18（25）	≤18（25）
Bulk density g/cm³	≥2.35	≥2.30	≥2.5（2.25）	≥2.55（2.30）
Cold crushing strength/ MPa	≥70	≥50	≥85	≥85
Permanent liner change %	1500℃×2hr ±0.2		1500℃×2hr ±0.1	1500℃×2hr ±0.1
Refractoriness under load 0.2MPa T₂ ℃	≥1500	≥1470	≥1630	≥1650
（DIN51068） Thermal Shock Resistance			1000℃Water Cooling ≥20	1000℃Water Cooling ≥20
Refractoriness/ ℃	≥1770	≥1750
Purpose	Regenerator wall, upper structure of flue, rear lining		This product has good resistance to glass liquid erosion and thermal shock, and is suitable for the material channels, cover plates, and forming parts of daily glass and electronic glass melting furnaces, such as furnace head pots, punches, material barrels, material troughs, material basins, material bowls, etc.

Note: The data in parentheses are applicable to specific types, large products, and handmade brick indicators