SK34 refractory brick is made from high-quality calcined clay (clinker clay or calcined aluminosilicate materials) as the primary raw material, with appropriate binders and additives. It undergoes mixing, forming, drying, and high-temperature sintering (1300°C–1400°C).SK34 bricks offer excellent high-temperature resistance, corrosion resistance, and thermal shock stability, making them suitable for medium-to-high-temperature environments.Due to its balanced refractoriness and excellent overall performance, SK34 refractory brick is widely used in the following high-temperature industrial applications ,such as steel,cement,ceramic,glass industries and so on.
Technical Data of SK34 Fireclay Brick
|
Item |
SK-32 |
SK-34 |
SK-36 |
SK-38 |
SK-40 |
|
Al2O3(%)Min |
35 |
38 |
48 |
65 |
75 |
|
Fe2O3(%)Max |
3-4 |
2.5 |
2 |
2 |
2 |
|
0.2Mpa Refractoriness under load (°C) Min |
1300 |
1350 |
1450 |
1500 |
1550 |
|
Apparent porosity(%) |
22-26 |
20-24 |
20-23 |
20-22 |
20-22 |
|
B.D(g/cm³)Min |
2.05-2.1 |
2.1-2.2 |
2.25-2.35 |
2.45-2.5 |
2.6-2.7 |
|
Cold crushing strength Mpa |
22 |
25 |
45 |
50 |
55 |
Size
Standard shapes:
230X114X65, 230X114X75, 230x114x32mm, 230x114x40mm, 230x1114x50mm, 300X400X75mm, etc
Shaped bricks:
Side arch: 230x114x75/70mm, 230x114x75/65mm, 230x172x112/88mm, 230x172x106/94mm, 230x172x100mm
End wedge: 230x114x75/70mm, 230x114x75/65mm
Wedge-shaped, special-shaped bricks
Refractory tiles: 220x110x30mm, 230x115x32mm, 250x123x32mm, 465x115x65mm
Refractory bricks: 220x110x60mm, 230x115x65mm, 230x115x75mm, 230x150x65mm, 230x150x55mm, 230x172x75mm, 220x165x60mm, 230x172x65mm, 250x187x65mm, 460x429x64mm, 478x468x64mm, 195x115x60mm, 230x115x50mm, 230x115x60mm, 120x100x220mm, 40x400x220mm, 500x500x64mm, 500x500x76mm, 232x100x220mm, etc
Special shapes: Complex geometrical shaped bricks
Refractory double bricks, 220x220x60mm, 230x230x65mm, 250x250x65mm
As per customers' request and drawings to manufacture.
Characteristics of SK34 Fire Bricks
High-Temperature Resistance
Refractoriness ≥1730°C, suitable for operating temperatures up to 1400°C.
01
Good Corrosion Resistance
Good resistance to acidic slag and gases, with moderate resistance to alkaline slag.
02
Good Thermal Shock Stability
Low linear expansion coefficient (approx. 4.5×10⁻⁶/°C), offering better thermal shock resistance than higher-alumina bricks.
03
High Mechanical Strength
High compressive strength and wear resistance, suitable for high-load areas.
04
Low Thermal Conductivity
Reduces heat loss, ideal for insulation layers.
05
Cost-Effectiveness
Compared to higher-alumina bricks (e.g., SK36, SK38), SK34 offers lower cost with high performance.
06
Broad Applicability
Due to their comprehensive performance and cost advantages, almost all kilns and furnaces utilize these refractory bricks to some extent.
07
Long service life
SK34 bricks perform reliably in 1300oC–1400oC environments, extending furnace life and reducing maintenance costs.
08
Main Uses
Due to their good refractoriness and relatively economical cost, SK34 bricks are widely used in various industrial furnaces and thermal equipment, including:
1.Iron and Steel Industry:
1).Blast furnace lining (middle and lower sections)
2).Hot blast stoves
3).Coke ovens (furnace bodies)
4).Soaking pits
5).converters
6).Ladle linings, etc.
2.Glass Industry: Furnace walls, bottoms, regenerators and crowns of glass melting furnaces, particularly in areas not directly in contact with molten glass,
3.Cement Industry: Preheaters, decomposition furnaces, and coolers in cement rotary kilns.
4.Ceramic Industry: Linings, bottoms, and crowns of ceramic firing kilns,Inner walls and insulation layers of ceramic kilns,
5.Power Industry: Boiler furnaces in thermal power plants.
6.Chemical Industry: Various reaction furnaces, incinerators, etc.
7.Non-Ferrous Metallurgy: Linings for copper, aluminum, and other smelting furnaces, withstanding high temperatures and chemical corrosion.
8.Waste incinerators
9.Other Uses: Various industrial boilers.
Linings for baking ovens, barbecues, pizza ovens, bread ovens, and other civilian or small-scale kilns.
Packaging and Shipping of SK34 Refractory Brick
1.Packed on wooden pallets with moisture-proof film or wooden box 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 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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