Low-Porosity Fireclay Brick
Low-porosity fireclay brick with Al₂O₃≥45%, apparent porosity ≤15% and RUL ≥1400℃. High density resists penetration by glass melt and furnace gases.
Al₂O₃ Content≥45%
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Fireclay Brick
Fireclay brick (Al₂O₃≥40%, refractoriness ≥1710℃) offers good thermal-shock resistance, economy and easy installation—the classic general-purpose refractory brick.
Technical Data
| Al₂O₃ Content | ≥40% |
|---|---|
| Refractoriness | ≥1710℃ |
| Bulk Density | ≥2.10 g/cm³ |
| CCS | ≥35 MPa |
| Thermal Shock | ≥ 10 cycles |
Description
Fireclay Brick
Material System & Positioning
Fireclay bricks use fireclay chamotte as the main raw material: Al₂O₃ ≥40%, refractoriness ≥1710℃ and bulk density ≥2.10 g/cm³. With good thermal shock stability, economical cost and easy installation, they are among the most widely used refractories. It is Henan Songrui's general grade for boilers, flues and kiln low-temperature zones.
Key Performance
- Good thermal shock stability: suits temperature-cycling duties.
- Economical: stable supply, complete size range.
- Easy installation: precise shape for standardized laying.
- Versatile: widely used in boilers, flues and kiln cold zones.
Applications
- Power Boilers: low-temperature walls, flues, economizer zones.
- Steel & Iron: reheating furnace cold zones, lower hot blast stoves, chimney linings.
- Cement: preheater cold zones, kiln inlet chambers.
- Chemical/Coking: coke oven flues, chemical kiln cold zones.
Selection Advice
Fireclay suits zones below 1300℃; use high-alumina or mullite bricks at higher temperatures. It offers the excellent economy for large low-temperature linings.
Installation & Maintenance
Lay with fireclay mortar, joints 2-3mm; maintain laying quality in cold zones too to prevent gas bypass.
Quality Assurance
Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or installation, contact Manager Zheng (17513376789 / 17513376789@163.com).
Key Features
- General-purpose fireclay with good thermal-shock resistance
- Economical and easy to install
- For boilers, flues and low-temperature kiln zones
- Moderate cold strength and regular shape
- Stable supply and full size range
- Use with fireclay mortar
Typical Applications
Fireclay brick is the classic general-purpose refractory:
- Steel & Iron: upper BF stack, hot blast stove lower sections and flues, mixer shells, reheating furnace cold zones.
- Cement: preheaters, kiln inlets, cooler cold sections.
- Glass: lower regenerators, flues.
- Power Boilers: boiler wall masonry, duct linings.
- Advantage: service up to 1300℃, Al₂O₃ 40-48%, good thermal shock resistance, very economical.
FAQs
Al₂O₃ and temperature of fireclay brick?
Al₂O₃ typically 40-48%, service up to 1300℃—the most economical general refractory brick.
Applications of fireclay brick?
Upper BF stack, hot blast stove lower sections, preheaters, boiler walls for medium-low temperature service.
Fireclay vs high-alumina brick?
Below 1300℃ without strong slag, fireclay is more economical; choose high-alumina for higher temperature or erosion.
Quotation & Custom Inquiry
Submit an inquiry or custom requirement for this product; reply within 24 hours
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