Prefabricated part for small electric furnace

FunctionRDG-1,RGD-2 used for ultra-high power electric furnace (more than 70 tons)RDG-3 used for high power electric furnace(30-70tons) RDG-4 used for general electric stove (below 30 tons) Features Prefabricated, application directly on site, easy to use High integrity, avoid the adverse effect bring by cracks between the bricks High hot strength, can withstand the high frequency vibration of electric furnace Can resist quick heating and cooling Anti-erosion, Long service life Usage Application and use on site.type material Bulk density(g/cm³) Chemical composition(%) Compression strength MPa flexural strength MPa Linear change rate% Al2O3 Cr2O3 110°C×24h 1500°C×3h 110°C×24h 1500°C×3h 1500°C×3h RDG-1 Corundum 3.1 ≥90 - ≥50 ≥80 ≥8.0 ≥12 0 0.7 RDG-2 pink fused alumina 3.1 ≥85 ≥3 ≥50 ≥80 ≥8.0 ≥12 0 0.6 RDG-3 High alumina 2.9 ≥85 - ≥40 ≥80 ≥7.0 ≥10 ±0.5 RDG-4 High alumina 2.8 ≥80 - ≥40 ≥80 ≥7.0 ≥10 ±0.5