Loading Port:Tianjin
Payment Terms:TT OR LC
Min Order Qty:1 m.t.
Supply Capability:2000 m.t./month
Description of Refractory Magnesia Bricks
Refractory Magnesia Bricks High Density Chinese Manufacturer is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics.
Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.
We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc
Features of Refractory Magnesia Bricks
(1) Excellent refractoriness
(2) Excellent chemical stability and thermal stability
(3) Low thermal conductivity, low thermal capacity
(4) Resist to external mechanical forces
(5) Able to withstand any thermal shock
(6) Generate no gaps between modules
Specifications for Refractory Magnesia Bricks
| Performance | |||||
| Item | Unit | 95 Al2O3 | 96 Al2O3 | 99 Al2O3 | |
| Physical Characteristics | Bulk density | g/cm3 | 3.6 | 3.6 | 3.9 |
| Water absorption | % | 0 | 0 | 0 | |
| Mechanical Characteristics | Flexural strength | Mpa | 320 | 340 | 360 |
| Hardness Vickers | Gpa | 12.2 | 13.5 | 15.6 | |
| Elastic modulus | Gpa | 280 | 320 | 370 | |
| Poisson’s ratio | - | 0.22 | 0.23 | 0.23 | |
| Thermal Characteristics | Linear expansion coefficient | (200C-5000C) 10-6/0C | 7.1 | 7.2 | 8 |
| Thermal conductivity | w/(m.k) | 16 | 24 | 32 | |
| Specific Heat | *10-3J/(kg*K) | 0.78 | 0.78 | 0.9 | |
| Electrical Characteristics | Dielectric constant (1MHZ) | - | 9 | 9.4 | 9.9 |
| Dielectric loss angle | *10-4 | 15 | 5 | 1 | |
| Dielectric strength | *106V/m | 12 | 15 | 15 | |
| Processing technology | |||||
| Process range (mm) | |||||
| Outside Diameter | 1---300 | ||||
| Inside Diameter | 0.5---300 | ||||
| Length | 0.5---1200 | ||||
| Accuracy of working (mm) | |||||
| Perpendicularity | 0.01 | ||||
| Concentricity | 0.01 | ||||
| Roundness | 0.005 | ||||
| Straightness | 0.005 | ||||
| Parallelism | 0.01 | ||||
| Planeness | 0.005 | ||||
| Roughness | 0.05 | ||||
| Fit clearance | 0.005 | ||||
Images of Refractory Magnesia Bricks
Applications of Refractory Magnesia Bricks
Common applications :door seals or caulking for ovens, furnaces and boilers, expansion joints, cable or pipe wrapping, high temperature seals or gaskets.
Refractory Magnesia Bricks have been widely used in welding, foundry works, aluminum and steel mills, boiler insulation and seal, exhaust systems, shipyards, refineries, power plants and chemical plant
FAQ of Refractory Magnesia Bricks
1. Can we visit your factory?
Sure, we warmly welcome you to visit our factory any time. Seeing is believing.
2. After an order is placed, when you will deliver?
10-30days.
3. Does your company accept customization?
We have a strong technical force. Our production methods are unique in that in allows us to be responsive to the needs and specification of our customers. We use a batch method of production, so each technician on the line is responsible for a specific area of expertise. at any point in our production, we can make changes and incorporate the feedback from our clients. We accept OEM service.
4. How is your products quality?
We specialize in fire brick ,our products are superior in quality to any other brand available on the market. These fire brick are gaining popularity because of their fine quality, competitive prices, and our honest dealings.
