Clay bricks & high alumina bricks-Refractories for blast furnace-Silica Brick,Fireclay Brick,Fireclay checker brick-SHANDONG LUQIAO NEW MATERIAL CORP.

Clay bricks & high alumina bricks

Items	Fireclay		High alumina
Items	ZGN-42	GN-42	GL-65	GL-55	GL-48
Al₂O₃ %	≥42	≥42	≥65	≥55	≥48
Fe₂O₃%	≤1.6	≤1.7	≤2.0	≤2.0	≤2.0
Refractoriness / ℃	≥1750	≥1750	≥1790	≥1770	≥1750
Apparent porosity / %	≤15	≤16	≤19	≤19	≤18
Cold crushing strength / MPa	≥58.8	≥49.0	≥58.8	≥49.0	≥49.0
RefractorinessKD ℃	≥1450	≥1430	≥1500	≥1480	≥1450
Permanent liner change %	1450℃×3h 0 ~ -0.2	1450℃×3h 0 ~ -0.3	1500℃×2h 0 ~ -0.2	1500℃×2h 0 ~ -0.2	1500℃×2h 0 ~ -0.2
Used Part	Bottom and body of the furnace		Furnace body and waist