Shaped Refractories
Zircon Bricks
Sintered zircon (ZrSiO₄) bricks for glass melter paving, forehearth sub-structures and feeder expendables
40 – 66%ZrO₂ Content
Up to 1700°CMax Service Temperature
3.3 – 3.7 g/ccBulk Density
2 GradesStandard Grades
- Supplying refractories since 1980
- Dispatch from Delhi
- Same-day dispatch of standard stock items
- Pan-India & export
Available Grades
Grades by ZrO₂ content, 40 – 66% across the range. Open a grade for its full technical specs.
Also available in this range: Fused-bonded Zircon. Ask us for the specification on any of these.
Applications
Typical applications for zircon bricks.
Glass melter bottom blocks & paving below AZS
Filler blocks below silica crown skews
Forehearth sub-structure (zircon-mullite)
Glass feeder expendables
Borosilicate furnace forehearth & spout burner blocks
Glass regenerator crown
Product Overview
Zircon bricks are made from sintered zircon (ZrSiO₄, ~62–66% ZrO₂), combining very low thermal expansion, high corrosion resistance to molten glass and excellent thermal shock resistance. They are widely used as melter bottom blocks and paving beneath AZS in glass tanks, as filler blocks below silica crown skews, and, as zircon-mullite, in forehearth sub-structures.
Industries Served
- Steel
- Cement
- Glass
- Petrochemical
- Power
Technical Specifications
Key properties of zircon bricks. Values vary by grade and manufacturer.
| Property | Typical Value |
|---|---|
| ZrO₂ Content | 62 – 66% |
| Bulk Density | 3.3 – 3.7 g/cc |
| Thermal Expansion | Very low |
| Glass Corrosion | Excellent |
| Thermal Shock | Excellent |
Technical Data Sheet
Chemical analysis, physical properties, test methods and available sizes for Zircon Bricks, shared on request.
Typical catalog values, not independently certified. Open a grade above for its full specification, and confirm the exact grade datasheet before specifying.
Talk to an Engineer
To recommend the right grade for your duty, send us:
Application
Furnace, kiln or vessel, and the zone.
Operating temperature
Normal and peak, °C.
Size & shape
Standard brick or the shapes you need.
Quantity
MT or number of pieces.
Drawing or spec
If you have one.
Frequently Asked Questions
Zircon bricks are made from sintered zircon (ZrSiO₄), containing roughly 62–66% ZrO₂ and 32–34% SiO₂. The zircon mineral gives very low thermal expansion, excellent thermal shock resistance and strong resistance to molten glass and slag corrosion, which is why zircon is used in glass tank paving and bottom blocks.
Not sure which Zircon Bricks grade you need?
Send us your application, operating temperature, dimensions and quantity. Our refractory team will recommend the suitable grade and supply 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
More in Shaped Refractories
Other shaped refractories we supply.
Mullite Bricks
High-creep-resistance mullite bricks for blast furnace stoves, glass regenerators and kiln furniture
Andalusite Bricks
Volume-stable andalusite bricks that mullitise in service for stoves, reheating furnaces and kilns
Fused Cast AZS Blocks
Melt-cast alumina-zirconia-silica blocks for glass furnace contact zones with exceptional corrosion resistance
Alumina-Carbon Bricks
Graphite-bonded alumina-carbon bricks for steel ladle walls, slag zones and impact pads
Magnesia-Carbon (MgO-C) Bricks
Magnesia carbon (MgO-C) bricks for BOF, EAF hot spots and ladle slag lines
Zircon Bricks
40 – 66% ZrO₂ · up to 1700°C