SK36/37/38 refractory bricks. High strength and high temperature resistant low porosity high alumina bricks for industrial kiln linings. Rongsheng refractory brick manufacturer supplies high-quality SK32, SK34, SK36, SK38, SK40 refractory bricks, high aluminum Sk36 fire bricks, and 80% high alumina brick industrial kiln lining.
Rongsheng High Alumina Refractory Bricks
Bricks that can withstand high temperatures above 1580°C are called refractory bricks. It is a finished product obtained by mixing refractory clay with clinker (calcined and pulverized clay), then stirring, pressing, drying, and calcining. high aluminum Sk36 fire bricks. Rongsheng high alumina bricks can be divided into SK36, SK38, and SK40 refractory bricks according to their grades. Refractory bricks are mainly used in furnace linings, flues, chimneys, etc. According to its shape and specifications, it can be divided into two categories: standard type and special shape. The specifications of standard refractory bricks are 230 mm × 114 mm × 65 mm. Special-shaped refractory bricks can be processed on-site as required or supplied by the manufacturer. Rongsheng manufacturer can customize various high-alumina bricks for different genders.
Special Grade High Alumina Refractory Brick Containing 80% Aluminum
Generally, high alumina refractory bricks are no stranger to customers who are familiar with refractory materials. High alumina bricks can be divided into four grades depending on the aluminum content. The alumina content of third-grade high alumina bricks is 55%. The alumina content of secondary high alumina bricks is about 65%. The content of first-grade high alumina bricks is not less than 75%. For special-grade high-alumina bricks, the content is generally above 80%.
Special high alumina bricks are the leader among refractory materials. Its refractoriness is as high as 1790°C and it can remain stable under extreme high temperatures, making it the first choice material for industrial kiln linings. It has excellent slag resistance and can resist the erosion of acidic slag and alkaline slag at the same time, providing a solid guarantee for the safe operation of the kiln. The load softening temperature of high alumina bricks is our unremitting goal. It represents the high temperature resistance and load-bearing capacity of the material, and is an important manifestation of the performance of high alumina bricks.
High-purity alumina refractory bricks have high refractoriness and load softening point, good chemical stability at high temperatures, do not interact with hydrogen, and will not pollute the protective gas. The refractory bricks are available in heavy weight (bulk weight greater than 3g/cm3) and light weight (bulk weight greater than 1.35g/cm3). Most of the heating chamber of the vertical furnace uses lightweight refractory bricks, except for the bottom few layers and some special-shaped plate tubes that use heavy refractory bricks. The mortar used in masonry is also made of high-purity alumina.
Performance advantages of special grade high alumina refractory bricks containing 80% aluminum
Compressive strength. According to customer comparisons, the high alumina bricks produced by Rongsheng are generally 2 to 4 MPa higher than the first-grade high alumina bricks from other refractory brick manufacturers under the same weight and aluminum content.
Thermal conductivity. Under unit temperature gradient conditions, the heat flow rate through the unit area of the material is related to the porosity.
Impact resistance. Good impact resistance means long service life.
Slag resistance. The ability to resist the erosion of slag at high temperatures without being destroyed.
Of course, in order to maximize the performance advantages of high-alumina refractory bricks, refractory material manufacturers not only need to guarantee product quality, but also need to understand the actual working conditions of high-temperature industrial furnaces. Moreover, the construction of high-alumina refractory bricks must also be standardized. Mainly by understanding some important information such as the working conditions, usage location and maximum temperature of industrial kilns, via can recommend more suitable special-grade high-alumina bricks and ordinary high-alumina bricks to customers. It should not only be practical, but also help companies save refractory brick costs.
Rongsheng SK36/37/38 High Alumina Refractory Bricks
Low temperature bending ≤ 10 Elongation at break 32
Flexural strength 65 Compressive strength 56
Tensile strength 45 Service temperature 1780
Tear strength 20 Form Other
Shape rectangle
Refractory bricks are classified according to refractory temperature (international label): SK-32, SK-34, SK-36, SK-38.
Rongsheng high-alumina refractory bricks are divided into (national standards) according to physical and chemical indicators: LZ-75, LZ-65, LZ-55, LZ-48 (refractory degree 1750℃-1790℃).
Rongsheng High Alumina Refractory Brick Manufacturer
Refractory bricks can be divided into two types according to their fire resistance: ordinary type (fire resistance 1580~1770℃) and advanced refractory bricks (fire resistance 1770~2000℃). According to their chemical properties, they can be divided into acidic, alkaline and neutral. 3 kinds.
High alumina brick is a refractory brick with alumina as the main raw material, and its alumina content is generally above 70%. High alumina bricks have excellent high temperature resistance, with a fire resistance of up to 1750-1800°C, and are suitable for high temperature areas. At the same time, high alumina bricks also have good thermal shock resistance and wear resistance, and can withstand the thermal expansion and contraction of the annealing furnace at high temperatures, as well as the wear and tear of the materials on the furnace wall. In addition, the price of high alumina bricks is relatively low and is one of the commonly used refractory materials in annealing furnaces.
Rongsheng Refractory Materials Factory is a refractory brick manufacturer that has been established for nearly 30 years. Mainly include SK series refractory bricks, special-grade refractory bricks, first-grade refractory bricks, second-grade refractory bricks, and special-shaped refractory bricks. Rongsheng manufacturers continue to improve new technologies and new processes to enable the quality of refractory products to meet the needs of different customers.
The 80% high alumina bricks produced by Rongsheng are resistant to wear, corrosion, spalling, low creep, and good thermal shock stability. The service life is 1.5 times that of ordinary products. Mainly used in blast furnaces, hot blast furnaces, carbon roasting furnaces, carbon calcining furnaces, coke ovens, and steel drums. Casting systems, boilers, cement kilns, glass kilns and various kiln linings and thermal equipment, etc. Suitable for metallurgy, machinery, building materials, casting, ceramics, electric power, petroleum, chemical and other industries. Contact Rongsheng to get free samples and quotes.
