Product technical performance indicators Product quality corundum high alumina clay product code GLD-90 GLD-80 GLD-70 GLD-60 GLD-50 GLD-40 Chemical Composition% AL2O3 ≥90 ≥80 ≥70 ≥60 ≥50 ≥40 CaO % ≤2.5 ≥2.5 ≥2.5 ≥2.5 ≥2.5 ≥2.5 bulk density g / cm3 110 ℃ * 24h after baking ≥2.95 ≥2.75 ≥2.60 ≥2.50 ≥2.40 ≥2.30 after 1500 ℃ * 3h bake ≥2.90 ≥2.70 ≥2.60 ≥2.50 ≥2.40 ≥2.30 compressive strength MPa 110 ℃ * 24h bake after ≥60 ≥45 ≥45 ≥40 ≥40 ≥40 1500 ℃ * 3h after baking ≥80 ≥75 ≥70 ≥60 ≥60 ≥60 flexural strength MPa 110 ℃ * After 24h bake ≥8 ≥7 ≥6 ≥6 ≥6 ≥6 ≥10 ≥10 ≥10 ≥8 ≥8 ≥8 line rate of change after 1500 ℃ * 3h bake% 110 ℃ * 24h after drying ≤-0.1 ≤-0.1 ≤-0.1 ≤-0.1 ≤-0.1 ≤-0.1 1500 ℃ * After 3h bake ≤-0.5 ≤-0.5 ≤-0.5 ≤-0.5 ≤-0.5 ≤-0.2 the highest temperature ℃ 1700 1600 1500 1450 1400 1350 product categories combined clay castable GLD-40 combined with low cement castable GLD-50 combined with low cement castable GLD-60 combined with low cement castable GLD-70 combined with low cement castable GLD-80 combined corundum castable GLD-90 Product Description low cement castable using superfine powder technology to do differential binding agent, aluminate cement as a coagulant, add some proof agent, reducing agent and produce a castable; temperature of 1350-1700 ℃; Features cement consumption is low, Its calcium content of only ordinary refractory castable 1 / 4-1 / 3; construction of water is low, only ordinary refractory castable 1 / 2-1 / 3 (approximately castable 6% -7%) and therefore have a high density and low porosity; cured at room temperature with high strength, high temperature treatment after the mild intensity increased, the absolute value of ordinary refractory castable 3-5 times; at high temperatures with good volume stability; typical application of low cement castable used in metallurgy, petroleum, chemical and various silicate furnace, refining equipment as certain components, refining bag cover, handle molten hot metal with the whole gun, furnace roof lining body, furnace, soaking furnace, annealing furnace linings, tundish lining, a steel tank, heat and blast furnace burner Gully cover, ladle linings, cement kiln kiln door cover before cooling machine front-end and other high temperature parts and other industrial furnace lining;