The SK34 Firebrick is a high-quality alumina-silica refractory brick produced by Xintai Refractory, designed for medium to high-temperature applications. With an alumina content of approximately 38%, SK34 bricks offer excellent mechanical strength, thermal stability, and resistance to slag and chemical corrosion. These bricks are widely used in industrial furnaces, kilns, and boilers, providing reliable performance and extended service life under demanding conditions.
Technical Specifications of SK34 Firebrick
| Parameter | Specification |
|---|---|
| Brand | Xintai |
| Alumina Content (Al₂O₃) | ≥ 38% |
| Bulk Density | 2.10 – 2.25 g/cm³ |
| Classification Temperature | ~1400°C |
| Working Temperature | 1300 – 1400°C |
| Refractoriness Under Load (RUL) | ≥ 1400°C |
| Cold Crushing Strength (CCS) | ≥ 50 MPa |
| Apparent Porosity | ≤ 22% |
| Permanent Linear Change (PLC) | ± 0.3% (at 1400°C × 2h) |
| Moisture Content | ≤ 1.0% |
| Organic Content | Low; organic binder fully burns off during firing |
| Standard Size | 230 × 114 × 65 mm |
| Color | Light Brown |
Key Features
High Alumina Content: Ensures excellent resistance to high temperature and chemical corrosion.
Strong Mechanical Strength: Provides superior load-bearing capacity and durability.
Excellent Thermal Stability: Maintains dimensional stability under continuous high temperatures.
Good Thermal Shock Resistance: Suitable for environments with frequent temperature fluctuations.
Low Porosity: Enhances resistance to slag penetration and chemical attack.
Typical Applications
Industrial furnace linings
Cement rotary kilns
Steel and non-ferrous metal smelting furnaces
Glass melting tanks
Petrochemical heaters and reactors
Ceramic kiln linings
Boilers and incinerators
Production Details of SK32 Firebrick
The SK34 firebrick is manufactured through a carefully controlled process that starts with the selection of premium bauxite and clay raw materials. These materials are crushed, milled, and thoroughly mixed before being shaped under high pressure into uniform bricks. After drying, the bricks are fired in high-temperature kilns at around 1400°C, resulting in excellent strength, thermal stability, and low porosity. Rigorous quality control ensures consistent performance for demanding industrial environments.
Packing and Shipping Details
SK34 firebricks are securely packed in wooden pallets or customized export crates to prevent damage and moisture ingress during transportation. Pallets are tightly wrapped with plastic film and reinforced with corner protectors. We offer flexible shipping methods including sea freight, air freight, and land transport. Typical lead time for orders is 7–15 working days after confirmation. All shipments come with necessary documentation such as packing lists, invoices, and certificates of origin.
Frequently Asked Questions (FAQ)
Q1: What is the maximum service temperature of SK34 firebrick?
The SK34 firebrick can withstand continuous service temperatures up to approximately 1400°C.
Q2: What is the alumina content in SK34 firebrick?
The alumina content is generally ≥ 38%, providing good thermal and chemical resistance.
Q3. Can SK34 firebrick resist thermal shock?
Yes, SK34 firebrick has good thermal shock resistance, suitable for fluctuating temperature environments.
Q4: Are custom sizes available for SK34 firebrick?
Yes, Xintai Refractory provides custom sizes and shapes according to customer requirements.
Q5: Can I get a sample before placing a bulk order?
Yes, free samples are available upon request for quality evaluation.
