Home > Products > Special Product > Refractory fireclay powder (Chamotte)
Refractory fireclay powder (Chamotte)
- Qingdao China
- T/T
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Product Details
| Shape | Brick | Material | Alumina Block | |
| SiO2 Content (%) | as your required | Al2O3 Content (%) | more than 45% | |
| MgO Content (%) | as your required | CaO Content (%) | as your required | |
| CrO Content (%) | from 1-15% | |||
| SiC Content (%) | from 1%-80% | Model Number | all your required | |
| Brand Name | OEM |
Product Description
Refractory fireclay powder (Chamotte
As a ten year old refractory material manufacturer, we have worked with many steel plants, metallurgic plants, cement plants, glass plants, provided them with top notch products and services. Here are the refractory bricks we produce: Magnesia-chrome refractory brick,High aluminum brick, Silica brick, Castable,
1.Magnesia-chrome refractory brick
By sintered magnesia and chrome ore as the main raw material in appropriate proportion, is made of high-grade refractory material. It shows better volume stability, strength at high temperature and sensitivity to the small thermal shock.
Physicochemical Index
1.1 Semi direct combined Mg-Cr
Item | Common Mg-Cr Brick | Semi direct combined Mg-Cr Brick |
MgO % | ≥60 | ≥65 |
Cr2O3 % | ≥8 | ≥8 |
Apparent porosity AP % | ≥21 | ≥20 |
0.2Mpa Loading softened starting temperature (RUL℃) | ≥1530 | ≥1600 |
Compression strength under normal temperature CCS Mpa | ≥30 | ≥30 |
Stability against thermal shock TSR(1100℃ water-cooling ) | ≥4 | ≥5 |
1.2 Direct combined Mg-Cr Brick
Direct combined Mg-Cr Brick | |||||
Item | ZNMC-12 | ZNMC-9-B | ZNMC-9-A | ZNMC-6 | ZNMC-4 |
MgO % | ≥60 | ≥70 | ≥70 | ≥75 | ≥80 |
Cr2O3 % | ≥12 | ≥9 | ≥9 | ≥6 | ≥4 |
SiO2 % | ≥3.2 | ≥3.0 | ≥2.8 | ≥2.8 | ≥2.5 |
Apparent porosity AP % | ≥19 | ≥19 | ≥19 | ≥18 | ≥18 |
Volume density Kg/cm3 | ≥3000 | 2980 | 2980 | 2950 | 2930 |
0.2MPa Loading softenedstarting temperature RUL℃ | ≥35 | 40 | 40 | 40 | 40 |
Compression strength under normal temperature(℃) CCS Mpa | ≥1580 | ≥1580 | ≥1600 | ≥1600 | ≥1600 |
Stability against thermal shock TSR(1100℃ water-cooling )times | ≥4 | ≥4 | ≥4 | ≥4 | ≥4 |
2. Fireclay refractory brick
The main crystal phase is mullite, with good fire resistance and physical and chemical property, and high thermal shock resistance and refractoriness, and certain ability to resist erosion against a variety of slag.
Physicochemical Index
Item | N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 | N-6 | |
Refractorines (℃) ≥ | 1750 | 1730 | 1730 | 1710 | 1710 | 1690 | 1670 | 1580 | |
Apparent porosity AP (%) ≥ | 22 | 24 | 26 | 24 | 24 | 24 | 26 | 28 | |
0.2MPa Loading softenedstarting temperature RUL℃ ≥ | 1400 | 1350 | - | 1320 | - | 1300 | - | - | |
Compression strength under normal temperature CCS Mpa | 30.0 | 25.0 | 20.0 | 20.0 | 20.0 | 20.0 | 15.0 | 15.0 | |
linear change on reheating PLC% | 1450℃×2h | +0.1 -0.4 | +0.1-0.5 | +0.2-0.5 |
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1350℃×2h |
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| +0.2 -0.5 |
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3.Loose castable refractories
By reasonable distribution of the granular and powdered materials and the binder composed of not forming and firing directly for the use of the refractories. This kind of material has no fixed shape, which can be made into slurry, mud paste or loose shape.
Physicochemical Index
3.1New concept, high temperature castable refractories
Item | chemical component % | Volume density g/cm3 | Disassembly /compressive strength MPa | Linear rate of change % | ||
AL2O3 | 110℃×24h | 1350℃×3h | 110℃×24h | 1350℃×3h | 1350℃×3h | |
GY-XGN60 | ≥50 | ≤1.7 | ≤1.65 | ≥4/20 | ≥4/25 | ±0.5 |
GY-XGN70 | ≥65 | ≤1.8 | ≤1.75 | ≥4/20 | ≥5/30 | ±0.5 |
3.2 Low cement, high-alumina & argillaceous castable refractories
Item | chemical component % | Volume density g/cm3 | Disassembly/compressive strength MPa | Line rate of change % | ||
AL2O3 | 110℃×24h | 1350℃×3h | 110℃×24h | 1350℃×3h | 1350℃×3h | |
GY-NDSN | ≥40-50 | ≥2.2 | ≥2.1 | ≥5-7/35-55 | ≥6-8/50-60 | ±0.5 |
GY-LDSN | ≥55-80 | ≥2.4-3.0 | ≥2.35-2.7 | ≥6-8/35-80 | ≥8-9/50-100 | 0-0.15 |
Packing Effect
Why choose Unionsum?
- History from 1953;
- Most authoritative and comprehensive organization in China mining and metallurgy industry;
- 2 academicians of China Engineering Academy, 108 professors and 500 senior engineers;
- 50 Laboratories and Pilots (2 state key Labs);
- Decades experiences in research and engineering service.
Key services
- Minerals processing;
- Metallurgy;
- Valuable metal recovery;
- Off-gas/waste water/slag control & treatment;
- Test and analysis.
Our service approach
- Scientific research to find a best solution in our Labs and Pilots;
- Feasibility study to answer all potential questions;
- Basic design and detailed design;
- Equipment innovation, fabrication and delivery; Tailor-Made;
- On site instruction for installation, commissioning and ramp up;
- Test and analysis to control the process performance and guarantee the product quality;
- Continuous after sales service, technical supporting and performance improvements.
Global network
Contact us
Contact Us
- Unionsum International Industrial Co., Ltd.
- Contact nameAlbert Tang Chat Now
- Phone86-731-85781166
- AddressFloor 3, Yubang Int'l Plaza, No. 222, Xinyao South Road, Tianxin Dist., Changsha, Hunan, China (Mainland), Changsha, Hunan
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