High Quality Refractory Material Magnesia Chrome Brick Magnesium Chromium Fire Brick for Furnace Lining

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials, Instant Materials, High Temperature Resistance
• Type: Refractory Material
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Shape: Brick
• Material: Magnesite,Periclase and Spinel
• Product Name: Magnesia Chrome Bricks
• Apparent Porosity: 17-18%
• Refractoriness Under Load: 1600c
• Cold Crushing Strength: 50-55 MPa
• Fe2o3: 4-6.5%
• Magnesia Chrome Bricksfeature: Good Thermal Shock Resistance
• Applications: Cement Rotary Kiln,Glass Kiln Regener
• Brick Material: Magnesium Oxide (MGO) and Chromium Oxide
• Al2O3 Content (%): 3.8-4.2%
• MGO Content (%): 65-80%
• Cao Content (%): 0.2-0.4%
• Cro Content (%): 7-17%
• Transport Package: International Standard
• Specification: Customizable
• Trademark: RSNC
• Origin: Zhengzhou
• HS Code: 69022000
• Production Capacity: 500ton/Tons Per Year

Product Description

High Quality Refractory Material Magnesia Chrome Brick Magnesium Chromium Fire brick for Furnace Lining

Product Description

Intorduction of High Quality Magnesia Chrome Bricks Refractory Bricks 

Magnesia-chrome bricks are refractory products with magnesium oxide (MgO) and chromium trioxide (Cr2O3) as the main components, and periclase and spinel as the main mineral components. This type of brick has high refractoriness, high temperature strength, strong corrosion resistance to alkaline slag, excellent thermal stability, and certain adaptability to acid slag. The main raw materials for the manufacture of magnesia-chrome bricks are sintered magnesia and chromite. The purity of magnesia raw material should be as high as possible, and the chemical composition requirements of chromite are: Cr2O3: 30~45%, CaO: ≤1.0~1.5%.
 

1.Common Magnesite chrome brick is made by sintered magnesia and refractory level chrome ore as raw materials. The space between refractory grains is bonded with silicate. 2.Direct-bonded Magnesite chrome brick is made by chrome ore with low content of impurities and pure magnesite,firing at the temperature above 1700°C. 3.Semi-rebonded and Fuse-rebonded magnesite chrome brick are made by fused magnesite chrome sinter.
Features & Benefits of High Quality Magnesia Chrome Bricks Refractory Bricks Made In China

The production process of fired magnesia-chrome bricks is generally similar to that of magnesia bricks. In order to eliminate the MgO and Cr2O3, Al2O3 or direct combination of magnesia-chrome bricks during the firing process

The loosening effect caused by the expansion of iron oxides to form spinel can also be made of magnesia-chrome bricks by using synthetic co-sintered materials. In addition, there are unburned magnesia chrome bricks, for example, unburned magnesia chrome bricks combined with inorganic magnesium salt solutions. The production process of unburned magnesia-chrome bricks is simple, the cost is low, and the thermal stability is good, but the high temperature strength is far less than that of fired bricks. In the late 1950s, a so-called "direct-bonded" magnesia-chrome brick was developed. The characteristics of this kind of brick are pure raw materials, high firing temperature, direct bonding between high temperature phases such as periclase and spinel, and low melting phases such as silicate are distributed in islands. Therefore, the high temperature of the brick is significantly improved. Strength and slag resistance.

The method of making bricks by co-grinding and calcining the compacts with chrome ore and magnesia is an effective measure to eliminate the loosening effect. Compared with ordinary magnesia-chrome bricks, the magnesia-chrome bricks made by this method have lower porosity and higher compressive strength, softening temperature under load and flexural strength. The magnesia-chrome bricks made of chrome ore-magnesite powder compacts and synthetic magnesia-chrome sand calcined at high temperature have better slag resistance and high-temperature strength than other magnesia-chrome bricks.

In addition, there are also fused cast magnesia-chrome bricks obtained by directly casting magnesia-chromium materials in an electric furnace.

Specification

Common magnesite chrome brick

Item	MGe6	MGe8	MGe12	MGe16
MgO %	80	72	70	65
Cr2O3 %	7	10	13	17
CaO %	1.2	1.2	1.2	1.2
SiO2 %	3.4	4	4	4.2
Al2O3 %	4.5	6.5	6	6
Fe2O3 %	4	4.8	5.5	6.5
Apparent Porosity %	17	18	18	18
Bulk Density g/cm3	3	3	3.02	3.05
Cold Crushing Strength Mpa	55	55	55	50
Refractoriness Under Load °C	1600	1600	1600	1600

 

Direct-Bonded magnesite chrome brick

 

Item	DMGe4	DMGe8	DMGe12	DMGe16
MgO %	85	77	74	69
Cr2O3 %	5.5	9.1	14	18
CaO %	1.1	1.4	1.2	1.2
SiO2 %	1.3	1.2	1.2	1.5
Al2O3 %	3.5	4	3.5	4.5
Fe2O3 %	3	6.4	5	5.7
Apparent Porosity %	18	18	18	18
Bulk Density g/cm3	3.02	3.04	3.06	3.08
Cold Crushing Strength Mpa	50	50	55	55
Refractoriness Under Load °C	1700	1700	1700	1700
Thermal expansion %  1000°C	1	1	1	0.9
Thermal expansion %  1600°C	1.8	1.8	1.8	1.6

 

Product Application

Carbon Bricks are widely used in the metallurgical industry. Of which carbon bricks are more used in the blast furnace. Many blast furnaces' furnace bottom and hearth are built with carbon bricks. Carbon Bricks uses, Rongsheng Carbon Bricks supplier. Carbon Bricks also can be used for pickling bath, plating bath in the electroplating industry, for the dissolving tank in the paper manufacturing industry, for the reactive tank and storage tank in the chemical industry, and for the autoclave in the petrochemical industry

Packaging & Shipping

Packaging : Packed by sea-worthy wooden pallet + shrink wrapped + carton For example, Standard size of Fireclay brick : 230x114x65mm Shipping : 384pcs/plt x 18plts in one 20 feet container;

Company Profile

RS Refractories Co., Ltd. is located in Henan, China. Our company has professional scientific and technical personnel and production team, and we have our own fully automated factories. For more than ten years, we have focused on the development and innovation of refractory materials and high-temperature furnace technology, and strive to provide customers with comprehensive, personalized and cost-effective services with high-quality products. Our products are widely used in electric power, metallurgy, petrochemical and other fields, and are exported to more than 70 countries and regions in the world such as Europe, America, Oceania, Southeast Asia, and the Middle East.
RS Refractories Co., Ltd. is a first-class supplier of refractory materials, we can provide you with the most advantageous quotations and products. Looking forward to be your partner!

 

Certifications

FAQ

Q1. Are you Manufacturer?
A: Yes, of course, our factory is in Xinmi,zhengzhou city,Henan province.

Q2. Can we visit your company?
A: Sure,welcome at any time,seeing is believing.

Q3. Do you accept OEM?
A: Yes, we can do OEM.

Q4. What's the MOQ of trial order?
A: No limit,We can offer the best suggestions and solutions according to your condition.

Q5. What are the payment terms?
A: Usually T/T,but L/C,Western Union etc are available for us.

Q6. How long is delivery time?
A: The delivery time will be determined according to the quantity of the order.

Q7. How are your products' quality?
A: The products will be strictly inspected before shipment, so the quality could be guaranteed.

Q8. How to solve the quality problems?
A: If the products are not confirmed to customer samples or have quality problems,our company will be responsible to make compensation for it.

Q9. What is the service life of your bricks?
A: The service life of different bricks is unlike.It also depends on your using condition and method.

Q10.How about your company's certification?
A: ISO9001 and Test Report,also we could apply other necessary certification.