Fireclay Brick
Fireclay brick (Al₂O₃≥40%, refractoriness ≥1710℃) offers good thermal-shock resistance, economy and easy installation—the classic general-purpose refractory brick.
Al₂O₃ Content≥40%
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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.
Technical Data
| Al₂O₃ Content | ≥45% |
|---|---|
| Apparent Porosity | ≤15% |
| CCS | ≥50 MPa |
| RUL (0.2MPa) | ≥1400℃ |
Description
Low-Porosity Fireclay Brick
Material System & Positioning
Low-porosity fireclay bricks are densified clay refractories with apparent porosity ≤15%, Al₂O₃ ≥45%, load softening point ≥1400℃ and CCS ≥50 MPa. High density and low permeability resist glass and gas penetration, with good wear resistance. It is Henan Songrui's professional grade for glass furnace regenerator checkers.
Key Performance
- Low porosity: ≤15%, strong penetration resistance.
- Erosion resistance: withstands glass melt and furnace gas attack.
- Wear/load resistance: suits checker load and abrasion.
- Low permeability: reduces gas bypass and corrosion.
Applications
- Glass: regenerator checkers, flues, regenerator walls.
- Steel & Iron: lower hot blast stove checkers, reheating furnace flues.
- Coking: coke oven flues and regenerators.
Selection Advice
Use where penetration resistance matters in regenerators and flues; stronger but costlier than ordinary fireclay—select zone by zone.
Installation & Maintenance
Lay with fireclay mortar in dense packing; align holes and keep channels clear.
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
- Low apparent porosity and high density
- Resists molten-glass and flue-gas penetration
- Wear/load resistant for glass regenerator checkers
- Low gas permeability reduces cross-flow and corrosion
- Regular shape for close packing
- Use with fireclay mortar
Typical Applications
Low-porosity fireclay brick with optimized packing and firing:
- Glass: lower regenerator checkers, port bottoms, tank walls in medium zones.
- Coking: coke oven ends, chamber walls in medium zones.
- Steel & Iron: lower hot blast stove checkers, BF stack.
- Advantage: service up to 1350℃, apparent porosity ≤15%, better slag and alkali resistance than ordinary fireclay.
FAQs
Low-porosity vs ordinary fireclay brick?
Lower porosity (≤15%) gives better slag penetration and alkali resistance for glass furnaces and coke ovens.
Glass furnace use?
Lower checkers, port bottoms, tank walls—resisting alkali vapor and glass attack.
Temperature rating?
About 1350℃, similar to ordinary fireclay but more corrosion-resistant.
Quotation & Custom Inquiry
Submit an inquiry or custom requirement for this product; reply within 24 hours
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