SK34 Firebrick

SK34 firebrick is an important type of refractory material. It is primarily used in high-temperature environments, such as kilns and furnaces in industrial equipment. Kerui offers a wide range of options for customers.

  • Al2O3: ≥38%;
  • Bulk Density: 2.1-2.2g/cm³;
  • Refractoriness Under Load: 1250-1360ºC;
  • Cold Crushing Strength: ≥30MPa;
  • Size: 230*114*65mm (standard)/And other sizes;
Free Sample Available to Any Country
High Working Temperature
Proper Thermal Stability
Proper Acid Resistance
Good Thermal Shock Resistance
Kerui SK34 Firebrick

Parameters of SK34 Firebricks

Classified as a Grade 3 high alumina refractory, SK34 bricks, named according to industry standards, contain 38% alumina (Al₂O₃).

  • The “SK” is a common designation for high temp refractory bricks, specifying the brick type.
  • The numeral “34” indicates the grade, making SK34 suitable for moderate temperature and pressure environments. These bricks can withstand temperatures up to approximately 1300 to 1400 degrees Celsius.
Item/GradeSK-34
Al2O3, %38
Fe2O3, %2
Refractoriness (SK)34
Refractoriness underload, 0.2MPa, °C1360
Apparent Porosity, %20-22
Bulk Density, g/cm³2.1-2.2
Cold Crushing Strength, MPa30

Checking of Kerui SK34 Fire Bricks

The Production of Kerui SK34 Fire Bricks

The production process of Kerui SK34 refractory bricks typically includes steps such as raw material preparation, molding, drying, and sintering.

  • High-quality raw materials: Kerui selects premium raw materials to enhance the performance of refractory bricks.
  • Precise proportioning: Accurate batching and mixing ensure the bricks achieve the desired chemical composition and physical properties.
  • Molding: Over 40 pressure molding machines guarantee uniform brick density.
  • Sintering: Two 168-meter-long tunnel kilns ensure thorough and uniform firing, resulting in excellent performance.
  • Inspection and packaging: After production, the Kerui shipping team conducts sampling inspections of the bricks, followed by secure packaging for delivery.
Kerui Factory of SK34 Firebrick
Kerui Factory in China

Standard and Custom Shapes of Kerui SK34 Fire Bricks

Select appropriate specifications and dimensions based on actual needs to ensure the fire bricks fit tightly within the equipment.

  • Kerui offers a variety of standard shapes and sizes for high-alumina bricks, including straight, arch, wedge, and more. For standard shapes, Kerui usually maintains stock.
  • In addition, Kerui can provide custom bricks according to customer drawings.

Kerui High Alumina Fire Bricks with Special Shape

Features of Kerui SK34 Firebrick

  • High refractoriness;
  • Good thermal stability;
  • Chemical stability;
  • Slag resistance;
  • Reduces energy consumption and improves equipment thermal efficiency;
  • Extends equipment service life and lowers operating costs.

Kerui Library for Testing, Checking and Studying

Kerui SK34 Firebrick Used in High-temperature Industry

Due to the excellent performance of SK34 refractory firebricks, they are widely used in various high-temperature industrial kilns.

  • Steel and iron smelting industry: Used as linings for high-temperature equipment such as blast furnaces and converters.
  • Ceramics industry: Applied to the inner walls and insulation layers of kilns to improve kiln efficiency and product quality.
  • Non-ferrous metal smelting: Used in melting furnaces for non-ferrous metals such as copper and aluminum.
  • Glass manufacturing: Utilized in glass melting furnaces and related equipment.
  • Cement industry: Applied in cement kilns and similar setups.
  • Petrochemical industry: Used in cracking furnaces, reactors, and so on.

Wide Applications of Kerui SK34 Fireclay Bricks in Furnaces and Kilns

Kerui is Your Reliable Manufacturer

  • Quality Control: Kerui’s factory implements a comprehensive production quality control system to ensure the final products meet standards.
  • High Repurchase Rate: As a top manufacturer in China, Kerui enjoys high customer satisfaction, with 70% of clients choosing to repurchase our products.
  • Technical Support: Our team of professional technicians provides product advice, solutions, and construction guidance.
  • After-Sales Service: Kerui’s after-sales team offers on-site construction guidance. If necessary, the Kerui team can provide in-person support at the project site.
  • Certificate: Kerui has a series of certificates and document for customer support, like ISO14001, ISO9001, CE, etc.

Kerui Certificates

Choose Kerui to Cooperate With

Thanks to its excellent performance, SK34 firebricks are widely used in high-temperature industries. They not only provide solid support for industrial production but also extend the service life of kilns. Whether you need products or solutions, Kerui is your best choice. See more pictures of products on Pinterest.