SK40 refractory brick is high-grade refractory brick,its refractoriness is 1770-2000°C.There is excellent high temperature resistance,thermal shock resistance and chemical erosion resistance,etc properties.Below is the physical and chemical details:
|
Item |
SK-36 |
SK-38 |
SK40 |
|
Al2O3(%)Min |
48 |
70 |
75 |
|
Fe2O3(%)Max |
2.00 |
2.00 |
2.0 |
|
0.2Mpa Refractoriness under load (°C) Min |
1450 |
1500 |
1550 |
|
Apparent porosity(%) |
20-24 |
20-22 |
20-22 |
|
B.D(g/cm³)Min |
2.15-2.35 |
2.4-2.5 |
2.6-2.7 |
|
Cold crushing strength Mpa |
45 |
50 |
55 |
Size
Common shape:
230X114X75mm
230X114X65mm
230x114x32mm
230x114x40mm
230x1114x50mm
300X400X75mm
Special Shape
Side arch 230x114x75/70
Side arch 230x114x75/65
End wedge 230x114x75/70
End wedge 230x114x75/65
High alumina fire bricks can also be manufactured in various other standard and custom shapes to suit specific furnace designs,Such as arch refractory brick and curved refractory brick ,etc.
Manufacturing Process
SK40 High alumina firebrick is produced by
Selecting high-purity bauxite and high-alumina raw materials
Mixing with precise proportions to achieve desired chemical and physical properties
Molding under high pressure
Sintering in high-temperature tunnel kilns (1420–1530°C) for uniform firing and enhanced performance.
Features and Properties
1.High Refractoriness: SK40 high alumina bricks can withstand extremely high temperatures(≥1770°C).
2.High Cold Crushing Strength
3.Good Thermal Stability
4.Low creep in high-temperature
5.Excellent Thermal Shock Resistance
6.Good Spalling Resistance
7.Good Wear Resistance
8.Good Corrosion Resistance
9.Low Apparent Porosity
10.High Bulk Density
Applications
SK40 refractory brick is hard refractory brick,it is widely used in various industries where high temperatures and harsh conditions are present because of their superior properties. Below is the details:
1.Iron and Steel Industry:
1).Lining of blast furnaces
2).Hot blast stoves
3).Electric arc furnace tops
4).Steel ladles
5).Reheating furnaces
2.Cement kilns
3.Glass kilns
4.Ceramic kilns
5.Petrochemical furnaces
6.CFB Boilers
7.Lime kilns
8.Non-ferrous metal smelting furnaces
9.Rotary kiln linings
Packaging and Shipping
1.Packed on wooden pallets with moisture-proof film to prevent damage.
2.Keep in dry, ventilated areas.
Our Company
Why Choose Us?
We are a modern integrated enterprise specializing in refractory materials, combining R&D, production, design, construction and technical services. Our business covers development, manufacturing and sales of refractory materials and insulation material
Our engineers will recommend right bricks for you based on:
Operating temperature → Determines Al₂O₃ content
Chemical environment → Corrosion resistance grade
Mechanical load → Density & strength requirements
Free samples to be provided.
Within in 8 hours to respond your inquiry.
If you receive defective products,We guarantee:24-hour response,Solution within 48 hours and Replacement/refund options.
Our company supplies a complete range and type of Refractory High alumina brick, including:
Standard to high-grade products (Al2O3: 48%-90%)
Special-function types (spalling-resistant, low-creep, microporous, etc.)
Custom-engineered solutions for specific applications
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