At Highland Refractory, we move beyond the role of a simple supplier. As a manufacturer with a 60,000-ton annual capacity and over 30 years of R&D expertise, we provide a reliable, factory-direct source for all your refractory needs.
Whether you are relining a regional furnace or sourcing material for a massive international industrial project, our bricks are engineered to deliver superior campaign life and lower your total cost of ownership.
1. High temperature resistance
2. Good wear resistance
3. Weakly acidic at high temperatures
4. Strong erosion resistance
5. Good volume stability
6. Low prices
Used for lining blast furnaces, hot blast furnaces, electric furnace roofs, oxygen converters, reverberatory furnaces, and rotary kilns. They are also widely used as regenerative flat furnace checker bricks, plugs for pouring systems, and water mouth bricks, among other applications.
|
Item |
Index |
||||||||
|
Model |
N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
|
|
Refractory temperature（℃≥） |
1750 |
1730 |
1730 |
1710 |
1710 |
1690 |
1670 |
1580 |
|
|
Bulk densityg/cm3 |
2.1 |
-- |
-- |
-- |
-- |
2.0 |
-- |
2.0 |
|
|
Softening temperature under load[0.2MPa*0.6%]≥ |
1400 |
1350 |
-- |
1320 |
-- |
1300 |
-- |
-- |
|
|
Reburning line change rate（%） |
1400℃*2h |
+0.1-0.4 |
+0.1-0.5 |
+0.1-0.5 |
-- |
-- |
-- |
-- |
-- |
|
1400℃*2h |
-- |
-- |
-- |
+0.2-0.5 |
+0.2-0.5 |
+0.2-0.5 |
+0.2-0.5 |
-- |
|
|
Apparent porosity（%≤） |
22 |
26 |
24 |
24 |
26 |
24 |
26 |
28 |
|
|
Normal temperature compressive strength（MPa≥） |
30.0 |
20.0 |
25.0 |
20.0 |
15.0 |
20.0 |
15.0 |
15.0 |
|
In the competitive landscape of industrial thermal management, finding a supplier who balances production scale, technical precision, and wholesale pricing is the ultimate challenge. At Highland Refractory, we move beyond the role of a simple supplier. As a manufacturer with a 60,000-ton annual capacity and over 30 years of R&D expertise, we provide a reliable, factory-direct source for all your refractory needs.
Whether you are relining a regional furnace or sourcing material for a massive international industrial project, our bricks are engineered to deliver superior campaign life and lower your total cost of ownership.
The decision to purchase fire bricks for sale through a manufacturer rather than a local distributor provides distinct advantages for your bottom line and your furnace’s efficiency:
Factory-Direct Wholesale Pricing: By removing the middleman, we offer aggressive pricing structures that favor bulk procurement. Our facility supports your project budget by providing competitive rates that scale with your order volume.
Massive Production Capability: We don’t experience "out of stock" delays. Our 60,000-ton annual capacity ensures that we can fulfill massive orders for multi-national projects while maintaining the same strict quality standards for every single brick.
Precision Manufacturing: We utilize advanced pressing technology and automated kiln firing to ensure that every brick—whether standard or custom—features tight tolerances, uniform density, and optimal thermal performance.
Highland Refractory offers a comprehensive portfolio designed to address the specific chemical and thermal pressures of modern industrial kilns and boilers.
Engineered for the most demanding thermal environments, our High Alumina bricks offer exceptional mechanical strength and resistance to slag corrosion.
Application: Ideal for steel ladle linings, glass tank transition zones, and rotary kiln high-temperature segments.
Performance: High refractoriness under load and excellent chemical stability.
The industry workhorse. Our fireclay bricks are designed for reliability in general-purpose applications where thermal shock resistance and cost-efficiency are the primary goals.
Application: Boiler linings, incineration furnaces, and general kiln structures.
Performance: Consistent thermal expansion coefficients and long-term durability.
For operations where reducing heat loss is the top priority, our lightweight insulating bricks feature high porosity to effectively trap heat, significantly lowering your daily fuel consumption.
Application: Backup lining for kilns and furnaces.
Selecting the right material starts with comparing technical parameters. Use the table below as your procurement reference guide.
| Product Grade | Alumina Content (%) | Service Temp (°C) | Bulk Density (g/cm³) | Application Focus |
| High Alumina 80 | 80% - 82% | 1790°C+ | 2.7 - 2.8 | Extreme Load / Corrosion |
| High Alumina 75 | 75% - 77% | 1750°C | 2.6 - 2.7 | Heavy Industrial Kilns |
| Fireclay SK34 | 38% - 42% | 1450°C | 2.1 - 2.2 | General Boiler/Kiln |
| Insulating G-26 | 45% - 50% | 1430°C | 0.8 - 0.9 | Energy Conservation |
Standard bricks work for standard layouts, but your project may require a unique design. Highland Refractory provides custom-molded refractory solutions. Our engineering team can translate your CAD drawings into precise, CNC-machined molds.
We manufacture arches, wedges, keys, and interlocking bricks that ensure a seamless lining. By utilizing custom shapes, you significantly reduce the amount of refractory mortar used, which minimizes weak points in your lining and prevents "hot spots" from developing during operation.
When you choose fire bricks for sale from our facility, you are choosing certified quality. Every production run undergoes a multi-stage inspection process:
Raw Material Purity: We utilize only high-grade bauxite and fireclay with low impurity levels.
Dimensional Tolerance: We use laser-controlled gauging to ensure every brick sits flush, resulting in stronger, more efficient linings.
Physical Integrity: We conduct rigorous testing for Cold Crushing Strength (CCS) and Permanent Linear Change (PLC) to ensure that your lining will not collapse or shrink prematurely under the heat of your production cycle.
We manage the complexities of international trade so that you can focus on your furnace operations.
Secure Packaging: Our bricks are palletized, shrink-wrapped, and reinforced with heavy-duty steel banding, ensuring a near-zero breakage rate during long-distance sea transport.
Export Expertise: Our export team handles all required documentation, including CIQ, SGS, and ISO certification papers, facilitating a smooth clearance process at your destination port.
Order Flexibility: We accommodate both Full Container Load (FCL) orders for major projects and Less-than-Container Load (LCL) shipments for repair and maintenance purposes.
Stop overpaying for standard refractory supplies. Whether you are maintaining a local boiler or upgrading a multi-stage industrial kiln, Highland Refractory provides the material consistency you need to operate with confidence.
Our export team responds to all inquiries within 24 hours. To receive a comprehensive wholesale quote or to consult with our engineers about the best brick grade for your specific furnace environment, please provide us with your requirements today.
Q: Do you offer bulk discounts for large industrial orders?
A: Yes. We operate on a tiered pricing structure. The larger the volume of your purchase, the more efficient we can be with logistics and production, resulting in significant savings for your project.
Q: Can you help me select the correct brick for my furnace?
A: Certainly. Please provide us with your operating temperature, fuel source, and current lining thickness. Our engineers will perform a thermal evaluation and recommend the most cost-effective brick grade.
Q: What is the lead time for standard versus custom shapes?
A: Standard bricks are held in significant stock for immediate dispatch. Custom shapes require approximately 2–4 weeks for mold production and firing, depending on the complexity and volume of the order.
Aluminum content 75%-80% Refractory 1770℃ or above
Silicon carbide plates are mainly composed of silicon carbide (SiC) as the aggregate (with a content usually ≥ 80%).
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
