Good Performance Fire Resistance Nice Price Magnesia Alumina Spinel Bricks

Product Description

Product Description

Magnesia spinel brick is a kind of basic refractory material which is manufactured by using magnesia and  alumina oxide powder or bauxite as raw materials. The thermal shock resistance of magnesia alumina brick is better than that of magnesia bricks, and the refractoriness is above 1580°C, with high corrosion resistance to basic melting slag. It is mainly applied to the top of steel making open-hearth furnace and EAF, high temperature tunnel kiln, large-scale cement rotary kiln and non-ferrous metal smelting furnaces,etc.                                                                                 
Magnesia hercynite brick was prepared with hercynite as raw materials. The application results showed that the cement kiln coating formed rapidly and stability when using magnesia-hercynite brick. The magnesia-hercynite brick had low thermal conductivity and long service life, and its overall performance was better than magnesia-chrome brick. The magnesia-hercynite brick could satisfy the chrome free requirement of burning zone of large-scale rotary kiln.

Features

Higher temperate resistant with good refractoriness
Higher grade of Chrome ore raw material
Lower impurity content
Good thermal shock resistance performance
Excellent resistance in slag abrasion
Good cold crush strength

Applications 

Metal Line, Free Board for General Ladle
EAF
firing zone in rotary kiln
upper and lower transition zone  

Specifications 

Mgo and Al₂O₃ content 
Widely used throughout Ladle ,EAF ,firing zone in rotary kiln , upper and lower transition zone        

Physical And Chemical Indicators

Brand Properties		MAJ-75	MAJ-80	MAJ-84	MH brick
Bulk Density (g/cm3)		2.90	2.95	2.95	2.95
Cold Crushing Strength (MPa)		45	45	60	45
Apparent Porosity (%)		19	19	18	18
Thermal Shock esistance watercool cool		12	15	20	8
Refractoriness Under Load (ºC)		1600	1700	1750	1680
Chemical Composition	MgO	75	80	84	80
	Al2O3	8	12	14	4.0
	Fe2O3	-	-	-	5.0
Main Applications		Metal Line, Free Board for General Ladle EAF firing zone in rotary kiln upper and lower transition zone

Product Picture 





JUCOS providing high grade refractory brick and insulation thermal ceramic fiber products to globe industrial 
high temperature furnace. Focus on refractory material selection,technical solutions,supplying,repairing,
construction.China leading refractory supplier with competitive price and reliable quality.

Q1 : How can you control your quality?
A1 : For each production processing, JUCOS have complete QC system for the chemical
       composition and Physical properties. After production, all the goods will be tested, and
       the quality certificate will be shipped along with goods.

Q2: Are you a manufacture or trader?
A2: We are truly a manufacturer, we not only can provide the high quality products with the
       best price, but also can offer the best pre-sale service and after-service.

Q3 : Do you provide free samples?
A3 : Of course, free samples are available.

Q4 : What is your lead time? 
A4 : It usually needs about 15- 20 days after receiving the PO.

Q5 : Can we visit your company?
A5 : Yes, for sure, you are welcome to visit JUCOS company and our products.
       Also, we can talk more about the technique details if you need.

Q6 : What is the warranty of your products?
A6 : Our products have at least 1 year warranty,if any quality problems,
    we will take responsibility of the cost of the shipment and the replacement.

Q7: What's the MOQ of trial order?
A7 : No limit, we can offer the best suggestions and solutions according to your condition.

Q8: Why choose us?
A8: We had been in this line for more than 25 years, we can not only provide you high
      quality products with competitive price, but also we can supply good technique service
      which can help you solve problems.

Q9 : What standards do you have?
A9 : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc. 
       The third party testing is all available for us.