Precast block has the advantages of convenient construction, good overall integrity, strong resistance to arc radiation, and resistance to rapid cooling and heating.
PRODUCT ADVANTAGES
High strength
Good thermal shock resistance
Corrosion resistance
Stable quality and long service life
TECHNICAL SPECIFICATIONS
|
Index |
DLD30 |
DLD33 |
DLD39 |
|
Al2O3 %+SiO2 % |
80 |
--- |
--- |
|
Al2O3 %+ MgO %≥ |
--- |
90 |
92 |
|
Bulk density g/cm3 ≥ |
2.8 |
3.0 |
3.2 |
|
CCS MPa ≥ |
25 |
60 |
60 |
|
Hot modulus of rupture MPa ≥ |
5 |
10 |
12 |
Precast Block, also known as refractory precast block or refractory precast shapes, is a prefabricated refractory component manufactured through vibration casting or molding processes using high-quality refractory aggregates, binders, and additives. It is widely used in BOF (Basic Oxygen Furnace) and EAF (Electric Arc Furnace) systems to improve installation efficiency, thermal shock resistance, and service life.
Compared with traditional brick masonry, precast refractory blocks provide faster installation, higher dimensional accuracy, and lower maintenance costs, making them ideal for modern steelmaking operations.
High Thermal Shock Resistance
Designed to withstand rapid temperature fluctuations in BOF and EAF operations.
Excellent Mechanical Strength
High compressive strength ensures stable performance under severe metallurgical conditions.
Customized Shapes & Sizes
Available in different dimensions and structures according to furnace design.
Fast Installation
Precast design significantly reduces construction time and labor costs.
Long Service Life
Optimized refractory formulations help minimize replacement frequency.
Stable Dimensional Accuracy
Factory-controlled production ensures consistent quality and precise fitting.
Our pre cast block are widely used in various high-temperature metallurgical equipment, including:
Designed for oxygen converter systems with excellent resistance to slag erosion and thermal shock.
Suitable for electric arc furnaces requiring superior wear resistance and high-temperature stability.
Engineered for high heat concentration areas and burner openings.
Custom-designed according to customer drawings and furnace configurations.
| Item | Precasting Block | Traditional Brick |
|---|---|---|
| Installation Time | Faster | Slower |
| Dimensional Accuracy | High | Medium |
| Labor Cost | Lower | Higher |
| Maintenance Frequency | Lower | Higher |
| Service Stability | Better | Standard |
| Customization | High | Limited |
With years of experience in metallurgical refractories, Guoliang provides customized precasting block solutions for steel plants worldwide. We combine advanced production technology, strict quality inspection, and engineering support to help customers reduce downtime and improve furnace efficiency. The company focuses on refractory solutions for the iron and steel metallurgical industry and supports customized manufacturing based on operating conditions.
Looking for high-performance precasting blocks for BOF or EAF systems? Contact our engineering team for customized refractory solutions and fast quotations.
If you are interested in any of our products or would like to make your customized order, please feel free to contact us. We are looking forward to establish successful business relations with you.
Get A Free Quote