Supplier: AGRM International Engineering Co., Ltd
Contact person: Ms. alice
Position:
Address: No. 1109, Building A, World Trade Center, Southern of Zhonghua Road
Country: China
Phone: - Mobi: 008615036210632
Fire Clay Brick
Price: 11
1. Normal Fireclay BrickNormal fireclay brick is the refractory material with Al2O3 content of 30%~48%. It is the most productive and widely used refractory material, because of its low price and properties of high temperature resistance, thermal insulation and chemical corrosion resistance.
According to different Al2O3 content, normal fireclay brick can be divided into: first class with Al2O3 content more than 40%, second class with Al2O3 content more than 35%, and third class with Al2O3 content more than 30%. Moreover, their corresponding refractoriness are not less than 1730ºC, 1670ºC and 1610ºC respectively. Refractoriness under load are all between 1250ºC and 1450ºC. Thermal shock resistance are all good and with low prices.
According to physical and chemical indicators of China national standards, fireclay refractory materials can be classified into eight types: N-1, N-2a, N1-2b, N-3a, N-3b, N-4, N-5 and N-6. The physical and chemical indicators of them are shown in table 1.
Table 1: Physical and Chemical Indicators of Fireclay Refractory Materials
2. Low-porosity Fireclay BrickPorosity, a basic technical indicator of most refractory materials, is capable of impacting on all properties of refractory products, especially on strength, thermal conductivity, slag resistance and thermal shock resistance. In addition, according to differences of apparent porosity, low-porosity fireclay bricks can be named as DN-12 (AP≤12%) and DN-15 (AP≤15%).
The obvious characteristics of low porosity refractory product shown as follows:
Strong resistance to erosion;
Low porosity, high density;
High mechanical strength;
Strong permeability resistance.
Physical and Chemical Indicators of Refractory Bricks with Low Porosity:
3. Casting Fireclay BrickAs the supporting material on the bottom of glass furnace, casting fireclay brick is widely used in most glass furnaces. It is popular in a majority of enterprises due to its advantages of reasonable price, convenience of construction and stability of furnace.
Physical and Chemical Indicators
According to different Al2O3 content, normal fireclay brick can be divided into: first class with Al2O3 content more than 40%, second class with Al2O3 content more than 35%, and third class with Al2O3 content more than 30%. Moreover, their corresponding refractoriness are not less than 1730ºC, 1670ºC and 1610ºC respectively. Refractoriness under load are all between 1250ºC and 1450ºC. Thermal shock resistance are all good and with low prices.
According to physical and chemical indicators of China national standards, fireclay refractory materials can be classified into eight types: N-1, N-2a, N1-2b, N-3a, N-3b, N-4, N-5 and N-6. The physical and chemical indicators of them are shown in table 1.
| Item | Fireclay Series | |||||||||
| Code | N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 | N-6 | ||
| Al2O3 | ≥ | % | ||||||||
| Refractoriness | ≥ | ºC | 1750 | 1730 | 1730 | 1710 | 1710 | 1690 | 1670 | 1580 |
| RUL 0.2Mpa | ≥ | 1400 | 1350 | 1320 | 1300 | |||||
| PLC % | 1500ºC×2h | |||||||||
| 1400ºC×2h | 0.1 | 0.1 | 0.2 | |||||||
| -0.4 | -0.5 | -0.5 | ||||||||
| 1350ºC×2h | 0.2-0.5 | 0.2-0.5 | 0.2-0.5 | 0.2-0.5 | ||||||
| AP | ≤ | % | 22 | 24 | 26 | 24 | 26 | 24 | 26 | 28 |
| CCS | ≥ | Mpa | 30 | 25 | 20 | 20 | 15 | 20 | 15 | 15 |
2. Low-porosity Fireclay BrickPorosity, a basic technical indicator of most refractory materials, is capable of impacting on all properties of refractory products, especially on strength, thermal conductivity, slag resistance and thermal shock resistance. In addition, according to differences of apparent porosity, low-porosity fireclay bricks can be named as DN-12 (AP≤12%) and DN-15 (AP≤15%).
The obvious characteristics of low porosity refractory product shown as follows:
Strong resistance to erosion;
Low porosity, high density;
High mechanical strength;
Strong permeability resistance.
Physical and Chemical Indicators of Refractory Bricks with Low Porosity:
| Item | Performance Indicators | |||
| DN-12 | DN-15 | |||
| Al2O3 | ≥ | % | 45 | 42 |
| Fe2O3 | ≤ | 1.2 | 1.5 | |
| AP | ≤ | 12 | 15 | |
| BD | ≥ | g/cm3 | 2.37 | 2.30 |
| CCS | ≥ | MPa | 68 | 58.8 |
| RUL T0.6 T0.5 | ≥ | ºC | 1500 | 1470 |
| 1470 | 1450 | |||
| Thermal shock stability (1100ºC-water cooling) | Provide the measured data | |||
| PLC (1400ºC×2h) | % | -0.1 | -0.2 | |
| 0.05 | 0 | |||
| Note: Differential method is used for load-soft temperature arbitration. |
Physical and Chemical Indicators
| Item | Performance Indicators | |||
| BN-40a | BN-40b | |||
| Al2O3 | ≥ | % | 40 | 40 |
| Fe2O3 | ≤ | 1.5 | 1.8 | |
| A.P | ≤ | 18 | 18 | |
| B.D | ≥ | g/cm3 | 2.30 | 2.30 |
| CCS | ≥ | MPa | 49 | 34.3 |
| RUL T0.2 | ≥ | ºC | 1450 | 1400 |
| PLC (1400ºC×2h) | % | 0 | ||
| -0.4 0 |
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