Mark & model : DL-80、DL-75、BDL-80、BDL-75
Quality standard : International
H.S.Classification : Glassware & Ceramics,Ceramic Products,6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods nesoi
Mark & model : DL-80、DL-75、BDL-80、BDL-75
Quality standard : International
H.S.Classification : Glassware & Ceramics,Ceramic Products,6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods nesoi
HIGH ALUMINA BRICKS FOR EAF ROOFS | ||||
Goods Brand | DL-80 | DL-75 | BDL-80 | BDL-75 |
Al2O3(%) min | 80 | 75 | 80 | 75 |
Refractriness under load 0.2 Mpa ( ℃) min | 1530 | 1520 | 1530 | 1520 |
Apparent porosity (%) max | 19(21) | 19(21) | 18(20) | 18(20) |
Cold Crushing strength (MPa)min | 75 | 65 | 60 | 55 |
Shrinkage after reheating 1500℃x2h (%) max | 0.2~-0.4 | 0.2~-0.4 | *** | *** |
Thermal shock (1100℃water) | *** | *** | 8 | 8 |