80 Percent MgO Magnesia Alumina Spinel Brick Magnesia Refractory Bricks
Magnesia Refractory Bricks Magnesia Alumina Spinel Brick China Manufacturer
The silica molybdenum bricks, silica molybdenum red bricks and magnesia-iron spinel bricks produced by our company have the characteristics of high strength, erosion resistance, corrosion resistance and thermal shock resistance. Wide applicability and no environmental pollution, it is a cost-effective series of products worthy of customers' first choice. In addition to refractory bricks, our company also produces unshaped refractory materials such as corundum high-strength and low-cement refractory castables used in various parts of cement kilns, steel fiber reinforced refractory castables, alkali-resistant castables, and high-alumina refractory castables.
Chemical Composition and Physical Properties:
| PMA-1 | ML-83 | ||
| Refractoriness (℃) | |||
|
Chemical composition(%) |
MgO | ≥75 | ≥83 |
| AL2O3 | ≥15 | 10～15 | |
| Fe2O3 | ≤1 | ||
| SiO2 | ≤2 | ||
| Bulk density (g/cm3) | ≥2.95 | ≥2.95 | |
| Apparent porosity(%) | ≤18 | 14～17 | |
| Cold strength(Mpa) | ≥50 | ≥60 | |
| Refractoriness Under Load(℃) | ≥1700 | ≥1700 | |
| Thermal Shock Resistance(1100℃↔water quenching,cycle) | ≥12 | ≥16 | |
Chemical & Physical Data Of Magnesia Alumina Spinel Brick
|
index item |
magnesia-alumina brick | magnesia-alumina spinel brick | Periclase-spinel brick | high-purity mag-alumina brick | ||||
| ML-80A | ML-808 | LMJ-A | LMJ-C | LMJ-C | LPJ-80A | LPJ-80B | LCML-86 | |
| MgO% | 80 | 80 | 80 | 75 | 70 | 82 | 80 | 86 |
| AL2O3% | 5~10 | 5~10 | 8~15 | 8~15 | 8~15 | 5~10 | 5~10 | 5~10 |
| 0.2MPa refractoriness under load 0C ≥ | 1600 | 1580 | 1700 | 1650 | 1600 | 1620 | 1600 | 1700 |
| cold crushing strength MPa ≥ | 45 | 40 | 35 | 35 | 35 | 39.2 | 39.2 | 35 |
| apparent porosity % ≤ | 18 | 20 | 17 | 18 | 19 | 18 | 18 | 16 |
| thermal shock resistance (11000C-water) times ≥ | 20 | 15 | 10 | 7 | 5 | |||
Our company
Refractory products are used extensively in heat-treatment facilities for petrochemical, steel metallurgy, non-ferrous metallurgy, glass, construction materials, chemical fertiliser and ceramics industries. Rare earth products of the Group are mainly exported to the United States of America, Japan, Europe and Korea, and its refractory products are mainly for domestic sales and export to Japan.
The Group has a research and development centre that focus on improving existing products and developing new products. Building and maintaining relationships with clients and exploring new businesses are the responsibility of its talented sales and marketing department. Concerning the environmental protection as well as the market needs, the Group will continue to develop environmental friendly and high value-added products.
Shipping of Magnesia Alumina Spinel Brick
1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quanlity and quantity guaranteed, and also in accordance with the contract and customer's requirment completely.
FAQ
1. What are refractory products?
Refractory products refer to functional materials which can resist high temperature or even ultra-high temperature. They are widely used in various high temperature heat treatment equipment, such as steels-melting kiln, glass kiln and cement kiln. The quality of refractory products directly affects the usable life of kilns and the quality of the final industrial output. Refractory products are made from various natural minerals such as silica, dolomite, graphite, zircon, magnesia, high aluminium ore and chrome ore through numerous technical refining processes. They have valuable features such as high-heat insulation, high-heat resistance, high strength, high hardness, good volume stability, oxidation resistance, excellent complexity, wear resistance, corrosion resistance, etc.. Some refractory products even have special features such as high ventilation, heat conduction and extreme hardness.
2. Any differences between shaped and unshaped refractory products?
Shaped refractory products can be pressed into bricks and are, generally used in building heat treatment equipment such as metallurgical kilns. Unshaped refractory products refer to fire-resistant casting materials. They can be moulded into whatever shapes and are suitable for building different high temperature furnaces and using as the lining in different heat treatment furnaces.
Magnesia chrome brick • Instructions for use
Magnesia-chrome bricks are mainly used in metallurgical industries, such as the construction of open hearth furnace roofs, electric furnace tops, furnace refining furnaces, and various non-ferrous metal smelting furnaces. The high temperature part of the ultra high power electric furnace wall is made of fused cast magnesia chrome brick. The high erosive area of the refining furnace outside the furnace is made of magnesia chrome brick made of synthetic material. The high erosive area of nonferrous metal flash smelting furnace is made by melting cast magnesia chrome brick and synthetic material. Magnesia chrome bricks. In addition, magnesia-chrome bricks are also used in cement rotary kiln firing zones and glass kiln regenerators.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.