Огнеупорный кирпич

Fire Brick 1. We are an ISO9001: 2000 certified professional manufacturer of refractory brick in China. 2. Fire bricks of various specifications are supplying. 3. Standard shape and customized shape. Standard size and special size. 4. Different parameters are available according to your request. 5. Various bricks can be made on the basis of customers' instruction 6. Excellent service and high quality are provided by us. The specification of Fire Brick are as follows: Item: LZ-85 LZ-80 LZ-75 LZ-65 LZ-55 LZ-48 Al2O3% ≥85 ≥80 ≥75 ≥65 ≥55 ≥48 Apparentporosity% ≤23 ≤22 ≤23 ≤23 ≤22 ≤22 ColdcrushingstrengthMpa ≥55 ≥55 ≥53.9 ≥49 ≥44.1 ≥39.2 Refractoriness ≥1790°C ≥1790°C ≥1790°C ≥1790°C ≥1770°C ≥1750°C Refractorinessunderloadin0.2MPa ≥1550°C ≥1530°C ≥1520°C ≥1500°C ≥1450°C ≥1420°C Permanentlinearchange 1500°C×2h -0.4 0.1 -0.4 0.1 -0.4 +0.1 -0.4 0.1 -0.4 0.1 1450°C×2h -0.4 0.1