Product Introduction
Fireclay bricks are made of clay clinker as aggregate, refractory soft clay and semi-soft clay as binders. The raw materials are strictly selected, crushed, mixed, and high-pressure formed. The Al2O3 content is 45-55% after sintering at 1380℃. It is a neutral to weakly acidic refractory shaped product.
Product Advantage
- The refractoriness of clay bricks is 1690℃, they have good thermal shock stability
- Highly resistant to neutral and acid corrosion.
Application Field
Fireclay bricks are widely used in many industries, mainly including metallurgy, building materials, chemical industry, electric power, heat treatment, ceramics and other high-temperature industrial fields.
Product Data
| Items | Specification | ||||||||
| N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 | N-6 | ||
| Refractoriness ℃ | ≥ | 1750 | 1730 | 1730 | 1710 | 1710 | 1690 | 1670 | 1580 |
| 0.2MpaRefractoriness under load ℃ | ≥ | 1400 | 1360 | 1320 | 1300 | ||||
| Reheat linear change ℃ | 1400℃、2h | 0.1 | 0.1 | 0.2 | |||||
| -0.4 | -0.5 | -0.5 | |||||||
| 1350℃、2h | 0.2 | 0.2 | 0.2 | 0.2 | |||||
| -0.5 | -0.5 | -0.5 | -0.5 | ||||||
| Apparent porosity % | ≤ | 22 | 24 | 26 | 24 | 26 | 24 | 26 | 28 |
| Cold crushing strength Mpa | ≤ | 300 | 250 | 200 | 200 | 150 | 200 | 150 | 150 |
| Thermal shock resistance cycle | N-2b, N-3b must undergo this inspection and indicate the actual measured data in the quality certificate | ||||||||