Fireclay Bricks

35% aluminaFormerly STD-36SK 32

AL-35 Fireclay Bricks

AL-35 is the 35% (nominal) Al₂O₃ grade in Shanker Agencies’ fireclay bricks range, rated for continuous service to 1200°C.

  • 35% (nominal)Al₂O₃ content

  • 1200°CMax service temperature

  • 25-29 MPaCold crushing strength

  • 2.1-2.2 g/ccBulk density

AL-35 Technical Specification

PropertyValue
Al₂O₃ content35% (nominal)
Fe₂O₃ content2.5% max
Bulk density2.1-2.2 g/cc
Apparent porosity22-25%
Cold crushing strength25-29 MPa
Refractoriness (PCE)Orton 34
Permanent linear change±0.5%
Max service temperature1200°C
Standard Size230 × 115 × 75 mm

Typical values for AL-35 fireclay bricks. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.

Is AL-35 right for your application?

  • Rated for continuous service up to 1200°C.
  • Also meets SK 30 requirements. Those are lower duties, so a lighter grade may be the more economical choice.

Technical Data Sheet

Chemical analysis, physical properties, test methods and available sizes for AL-35 Fireclay Bricks, shared on request.

Request Data Sheet

Where AL-35 Is Used

Typical applications for AL-35 fireclay bricks.

Boilers: refractory application

Boilers

Boiler back walls & settings

Industrial Furnaces: refractory application

Industrial Furnaces

General industrial furnace linings

Kilns: refractory application

Kilns

Kiln car superstructures

Incinerators: refractory application

Incinerators

Waste incinerator linings

Backup Linings: refractory application

Backup Linings

Backup linings behind working lining

Soaking Pits: refractory application

Soaking Pits

Soaking pit walls

Illustrative plant photos via Wikimedia Commons (CC BY / CC BY-SA / public domain). Photo credits

Compare AL-35 with Other Grades

AL-35 against the other 4 grades in the fireclay bricks range.

Swipe table to see all columns

GradeAl₂O₃ contentFe₂O₃ contentBulk densityApparent porosityCold crushing strengthRefractoriness (PCE)Permanent linear changeMax service temperature
AL-2826-30%2.5%—24-28%20 MPa———
AL-3028-30%2.5%—22-26%25 MPa———
AL-3230-34%2.0%—22-26%28 MPa———
AL-35this grade35% (nominal)2.5% max2.1-2.2 g/cc22-25%25-29 MPaOrton 34±0.5%1200°C
AL-4040% min3.0% max2.10 g/cc23% max30 MPa min——1200°C

Technical Resources

Why Buy from Shanker Agencies?

More than 45 years of experience supplying refractory solutions to industries across India and worldwide.

45+ Years

Refractory experience since 1980

Technical Selection

Application-based grade guidance

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From established refractory manufacturers

Documentation

Technical data available on request

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Supply support across markets

Disclaimer: values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.

Need AL-35 or help choosing a grade?

Send the drawing, dimensions, application and quantity for AL-35 fireclay bricks. Our technical team reviews the requirement and advises on grade and fulfilment route.

  • Technical support

    Grade selection from our refractory team

  • Manufacturer-backed

    Supplied from established refractory makers

  • Pan-India & export

    Supply across India, GCC, ASEAN and Africa