Stopper Refractory Sleeve Brick
Product Description And Parameters
Excellent resistance to acid and alkali corrosion
Working temperature:1350℃ -1650℃
Introduction
1.Made by bauxite clinker and binder through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 48%-80%.
3.Main mineral components are corundum and mullite phases.
4.Refractoriness is usually above 1770℃,refractoriness under load is 1420-1550℃.It is a neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion.
5.Working temperature:1350℃ -1650℃.
Item | Index | ||||
International code name | SK35 | SK36 | SK37 | SK38 | SK40 |
Al2O3 % | ≥48 | ≥55 | ≥65 | ≥75 | ≥80 |
Fe2O3 % | ≤2 | ≤2 | ≤2 | ≤2 | ≤2 |
Refractoriness ℃ | ≥1750 | ≥1770 | ≥1790 | ≥1790 | ≥1790 |
Apparent porosity % | ≤22 | ≤22 | ≤23 | ≤23 | ≤21 |
Cold crushing strength Mpa | ≥39 | ≥44 | ≥49 | ≥54 | ≥65 |
Refractoriness under load(0.2MPa)℃ | ≥1420 | ≥1470 | ≥1500 | ≥1520 | ≥1530 |
Reheating Linear Change (1500℃ 2h) % | +0.1~ -0.4 *1450℃ | +0.1~ -0.4 | +0.1~ -0.4 | +0.1~ -0.4 | +0.1~ -0.4 |
