Stock code
839391
Low cement refractory castable
Classification:
Product Introduction
The low-cement castable uses high-quality raw materials with low alkali metal content, optimizes the particle gradation, has the characteristics of good fluidity, convenient construction, high strength, and good volume stability; it can be directly poured into a lining body, and can be poured into a precast block. This series of refractory castables are special castables developed for steel rolling reheating furnaces. The products have been successfully used on more than 500 reheating furnaces in more than 100 units such as Baosteel, Wuhan Iron and Steel, Maanshan Iron and Steel, and TISCO.
Main physical and chemical indexes of low cement castable
| Item | JH-LN | JH-DA55 | JH-DA60 | JH-DA65 | JH-DA70 | |
| Chemical composition (%);≥ | Al₂O₃ | 42 | 55 | 60 | 65 | 70 |
| Bulk Density (g/cm³);≥ | 110 ℃× 16h | 2.2 | 2.25 | 2.3 | 2.4 | 2.5 |
|
Permanent linear change (%) |
1350 ℃× 3h | -0.5~0 (1300 ℃× 3h) |
-0.5~ 0.5 | -0.5~ 0.5 | -0.5~ 0.5 | -0.5~ 0.5 |
|
Cold Modulus of rupture |
110 ℃× 16h | 4 | 5 | 5 | 6 | 7 |
| 1350 ℃× 3h | 5 (1300 ℃× 3h) |
6 | 6 | 7 | 7 | |
| Cold compressive strength (MPA);≥ |
110 ℃× 16h | 25 | 30 | 30 | 35 | 40 |
| 1350 ℃× 3h | 40 (1300 ℃× 3h) |
45 | 45 | 55 | 55 | |
| Use temperature (℃) | 1300 | 1350 | 1350 | 1350 | 1350 | |
| Application area | Furnace roof and furnace wall in low temperature section | Each part of the furnace | ||||
Packing: 25 kg/bag, 50 kg/bag preservation precautions: moisture-proof shelf life: 3 months
Key words:
Low cement refractory castable
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