Export Quality Magnesia Chrome Brick
The description:
Magnesia chrome brick with magnesium oxide (MgO) and chromium trioxide (Cr2O3) as the main components, magnesia and spinel as the main mineral components of the refractory products. This kind of brick has high refractoriness, high temperature strength, strong corrosion resistance to alkaline slag, excellent thermal stability, and certain adaptability to acidic slag. The main raw materials of magnesia-chrome brick are sintered magnesia and chromite. The purity of magnesia raw materials should be as high as possible, the chemical composition of chromite requirements are: Cr2O3:30 ~ 45%, CaO: ≤1.0 ~ 1.5%.
Physical and Chemical Index of Export Quality Magnesia Chrome Brick
| Items |
20A |
20B |
18A |
18B |
| MgO % ≥ |
55 |
50 |
58 |
53 |
| Cr2O3 g/cm3 ≥ |
20 |
20 |
18 |
18 |
| Fe2O3 ºC ≥ |
6-12 |
6-12 |
6-12 |
6-12 |
| CCS ºC ≥ |
40 |
35 |
40 |
35 |
| % P.L.C 1550ºC×2h |
0.1-0.4 |
0.1-0.2 |
0.1-0.4 |
0.1-0.4 |
| Apparent porosity % ≤ |
18 |
19 |
18 |
19 |
| Creep%(0.2Mpa*50h) |
0.8 |
0.8 |
0.8 |
0.8 |
Product feature:
Export Quality Magnesia Chrome Brick is made from high purty magnesia sand,import chrome concentrate,added with a small amount of additives,pressed by high pressure,sintered at high temperature,with high refractoriness and excellent resistant to spalling performance.it's suitable to be used in large location at high temperature and temperature and temperature flutuation part.
Application:
Magnesium-chrome brick is mainly used in metallurgical industry, such as building open furnace top, electric furnace top, furnace refining furnace and various non-ferrous metal smelting furnace. The high temperature parts of the wall of the ultra-high power electric furnace are made of magnesia chrome bricks, the high erosion area of the refining furnace outside the furnace is made of magnesia chrome bricks made of synthetic materials, and the high erosion area of the non-ferrous metal flash melting furnace is made of magnesia chrome bricks made of fused cast magnesia chrome bricks and synthetic materials. In addition, magnesium-chrome brick is also used in cement rotary kiln firing belt and glass kiln regenerator chamber and other parts.
Company main products and profile:
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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