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SK-Series Refractory Bricks

SK-Series Refractory Bricks
SK-30 to SK-40 Industrial Fire Bricks

SK-Series Refractory Bricks Manufacturer & Exporter in India

 

At Oryvia Refractories, we offer SK-series refractory bricks designed for suitable high-temperature industrial furnace and kiln lining applications. Our range includes SK-30, SK-32, SK-34, SK-35, SK-36, SK-37, SK-38 and SK-40 grades, with different alumina compositions and physical properties to meet varying industrial requirements.

Our SK-series fire bricks are available in multiple grades and shapes to support different lining designs and operating conditions. We help industrial buyers evaluate the relevant product specifications, dimensions and application requirements when selecting refractory bricks for their projects.
 

Grades

We offer 8 SK-series grades with different alumina contents, refractoriness values, bulk densities, apparent porosity levels and cold crushing strengths. Each grade has its own technical characteristics, making grade selection an important part of refractory lining design.

Our available grades are SK-30, SK-32, SK-34, SK-35, SK-36, SK-37, SK-38 and SK-40. Their respective specifications help buyers compare material composition and physical properties according to their industrial requirements.
 

Applications 

Our SK-series refractory bricks can be considered for suitable furnace and kiln lining applications across industries such as steel, cement, foundries, glass manufacturing, boilers and other high-temperature industrial operations. The appropriate grade depends on the operating environment, mechanical loading, furnace atmosphere and chemical exposure.

We encourage buyers to evaluate the requirements of the specific furnace zone before selecting a grade. Considering operating temperature, thermal cycling, mechanical stress and contact with process materials helps establish the appropriate refractory specification.
 

Brick Shapes and Configurations

We offer a range of refractory brick configurations, including standard bricks, T-shapes, Y-shapes, plates, blocks, tiles and special shapes for specific lining requirements. Dimensions and configurations can be discussed according to the selected grade and project requirements.

For special-shaped refractory bricks, buyers can share dimensional drawings or technical details to help establish the required configuration before ordering.
 

How to Select the Right SK-Series Grade

  • Alumina content: Compare the required aluminium oxide composition and applicable chemical specifications.
  • Thermal performance: Evaluate refractoriness, temperature under load and the actual operating conditions.
  • Physical properties: Consider bulk density, apparent porosity and cold crushing strength.
  • Brick dimensions: Confirm the required shape, measurements and lining arrangement.
  • Operating environment: Consider mechanical loads, furnace atmosphere, chemical exposure and thermal cycling.

     

Why choose us

01
Multiple Grades We offer SK-30, SK-32, SK-34, SK-35, SK-36, SK-37, SK-38 and SK-40 refractory brick grades. Each grade has its own chemical composition and physical properties, helping industrial buyers compare specifications and identify the material requirements relevant to their furnace or kiln lining.
02
Specification-Led Selection We understand that refractory brick selection requires more than a grade name. Our SK-series specifications cover alumina content, iron oxide limits, refractoriness, bulk density, apparent porosity and cold crushing strength, giving buyers important technical parameters to evaluate when selecting materials for their applications.
03
Multiple Brick Shapes We offer different refractory brick configurations, including standard bricks, T-shapes, Y-shapes, plates, blocks, tiles and special shapes. Our range supports discussions around lining geometry, dimensions and project requirements. Share your drawings or dimensional details so we can establish the relevant configuration for your enquiry.
04
International Market Experience We serve customers across more than 20 countries. We welcome enquiries from international importers, distributors, wholesalers and industrial procurement teams seeking SK-series refractory bricks. Share your grade, quantity, application and dimensional requirements to begin a focused product discussion.
Technical Specification

Product Data Sheet For Calcined Bauxite

Perticulars SK -30 SK-32 SK-34 SK-35 SK-36 SK-37 SK-38 SK-40
Al2O3， ≥ 30% 32% 38% 45% 55% 65% 70% 82%
Fe2O3， ≤ 4.20% 4.20% 4.20% 4.00% 3.20% 2.50% 2.50% 2%
Refractoriness，SK 30 32 34 35 36 37 38 40
Refractoriness 1670 ℃ 1710 ℃ 1750 ℃ 1770 ℃ 1790 ℃ 1820 ℃ 1850 ℃ 1920 ℃
Temp. under load,0.2Mpa 1250 1350 1370 1420 1450 1480 1530 1600
Apparent Porosity， ≤ 22-25% 21-23% 20-22% 19-20% 18-19% 16-18% 15-17% 15-17%
Bulk density，g/cm3 1.9-2.0 1.95-2.1 2.1-2.2 2.15-2.22 2.25-2.40 2.3-2.5 2.4-2.6 2.5-2.7
Cold crushing strength, Mpa, ≥ 20 25 30 40 45 50 60 70
GRITS AVAILABLE:  mm: 0-1, 1-3, 3-5, 0-30, 0-50 Mesh: -200, -325

Frequently Asked Questions

  • What are SK-series refractory bricks?
    Our SK-series refractory bricks are heat-resistant shaped materials intended for suitable industrial furnace and kiln lining applications. We offer eight grades: SK-30, SK-32, SK-34, SK-35, SK-36, SK-37, SK-38 and SK-40. Each grade has its own chemical composition and physical characteristics. We recommend evaluating the relevant grade specification against your operating conditions, mechanical requirements and intended lining application.
  • What does SK mean in refractory bricks?
    SK is the grade designation used for our SK-series refractory bricks and is associated with refractoriness classification. The SK number should not be interpreted as the alumina percentage or as a guaranteed maximum operating temperature. For example, our SK-34 specification lists 38% minimum alumina, while SK-40 lists 82%. We recommend comparing the complete technical properties rather than selecting bricks by designation alone.
  • What is the maximum operating temperature of our SK-series refractory bricks?
    The appropriate operating temperature depends on the selected grade and the conditions inside the furnace or kiln. Our SK-series grade specifications list refractoriness values ranging from 1670°C for SK-30 to 1920°C for SK-40. These values should not be treated as guaranteed maximum service temperatures. We recommend evaluating temperature-under-load performance, chemical exposure and mechanical loading before selecting a grade.
  • Where can our SK-series refractory bricks be used?
    Our SK-series refractory bricks can be considered for suitable high-temperature furnace and kiln linings in industries such as steel, cement, foundries, glass manufacturing and boiler operations. The appropriate application depends on the grade and the operating environment. We encourage buyers to share their furnace type, operating conditions, chemical exposure and mechanical requirements so the relevant product specifications can be evaluated.
  • What shapes and sizes do we offer for SK-series bricks?
    Our SK-series range includes standard bricks, T-shapes, Y-shapes, plates, blocks, tiles and special shapes for specific lining requirements. The dimensions and applicable configurations depend on the product specification and order requirements. For special-shaped refractory bricks, share a drawing, measurements or detailed dimensional requirements with our team so we can discuss the appropriate configuration.
  • How should buyers choose between SK-30, SK-34, SK-36 and SK-40?
    We recommend comparing the required alumina content, iron oxide limits, refractoriness, bulk density, apparent porosity and cold crushing strength. For example, our listed minimum alumina values range from 30% for SK-30 to 82% for SK-40. A higher grade number does not automatically make a brick suitable for every application. The right choice depends on the furnace zone and its operating conditions.
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