yixing xinwei leeshing refractory materials co.,Ltd
Excellent quality, Customer first, Common development
Add to Cart
Spinel is the magnesium aluminum formulation of the larger spinel group of minerals. Melting point of Magnesia Spinel is 2135 C, and Magnesia Spinel has very high, excellent refractoriness. Magnesia Spinel refractory bricks possess high-melting point, high chemical inertness against both acidic and basic slags, low expansion values at elevated temperatures and widely used in zones where there is a big temperature change, cement rotary kilns, vacuum induction furnaces, regenerators of glass tanks, lime kilns, continuous casting tundishes, degasser snorkels and lances. The main advantages of using Magnesia Spinel bricks are;
| Item/Grade | High Alumina Refractory Brick | |||
| SK-36 | SK-37 | SK-38 | SK-40 | |
| Al2o3% (≥) | 55 | 65 | 70 | 82 |
| Fe2o3% (≤) | 2.0 | 2.0 | 2.0 | 2.0 |
| Refractoriness (SK) | 36 | 37 | 38 | 40 |
| Refractoriness under load, 0.2MPa, ℃ (≥) | 1450 | 1480 | 1530 | 1600 |
| Porosity(%) | 20-23 | 20-23 | 20-22 | 18-20 |
| Density(g/cm3) | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold crushing strength, MPa (≥) | 45 | 50 | 60 | 70 |
The bricks are packed on wooden pallet with papers in each layer and PP film wrapped outside of the whole pallet.