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China Chromium Oxide Brick Suppliers - Erosion & Heat Resistant Factory Solutions for Industrial Furnaces
Core Advantages
High Purity & Chemical Inertness
With strong chemical stability, not easy to react with molten slag, metal melt, and corrosive gases, suitable for extreme corrosive working conditions.
Excellent High-Temperature Stability
Long-term stable performance at ≤1800℃, low thermal expansion coefficient, no obvious deformation or softening under high-temperature load, ensuring furnace structural integrity.
Superior Erosion & Wear Resistance
Dense internal structure, strong resistance to molten slag penetration and high-temperature abrasion, effectively reducing lining wear and extending service life.
High Mechanical Strength
Room temperature compressive strength ≥180MPa, good flexural strength, can withstand heavy loads and thermal stress in industrial furnaces, not easy to crack or fall off.
Wide Atmosphere Adaptability
Stable performance in oxidizing, reducing, and neutral atmospheres, compatible with various complex industrial furnace working conditions, strong versatility.
Product Parameters
| Item | High Chrome Brick | Medium Chrome Brick | |
|---|---|---|---|
| Cr₂O₃ (%) | ≥93 | ≥80 | ≥70 |
| Apparent Porosity (%) | ≤16 | ≤16 | ≤16 |
| Bulk Density (g/cm³) | ≥4.25 | ≥4.10 | ≥3.70 |
| Cold Crushing Strength (MPa) | ≥100 | ≥120 | ≥120 |
| Refractoriness Under Load (0.2MPa, 0.6%, ℃) | ≥1700 | ≥1700 | ≥1700 |
Detailed Application Scenarios
Our high chromium oxide bricks are specially designed for extreme high-temperature and strong corrosive industrial environments, providing reliable lining solutions for the following key industries:
1. Metallurgical Industry
Ladle slag line, tundish nozzle, electric arc furnace bottom and side wall, converter mouth, and other high-corrosion parts.
2. Non-Ferrous Metallurgy Industry
Aluminum electrolysis cell lining, copper smelting furnace, zinc leaching furnace, and other parts in contact with molten non-ferrous metals.
3. Chemical Industry
Sulfuric acid plant conversion furnace, chemical reactor, phosphate fertilizer furnace, and other high-corrosion high-temperature equipment.
4. Glass & Ceramic Industry
Glass melting furnace throat, regenerator, ceramic sintering kiln high-temperature zone, and other corrosion-prone parts.
5. Building Materials Industry
Ceramic roller kiln high-temperature zone, brick kiln lining, and refractory lining of cement kiln preheater.
Conclusion & Inquiry
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions (FAQ)
What is the main difference between High Chrome and Medium Chrome bricks?
High Chrome bricks contain higher Cr₂O₃ content (≥93%) and higher bulk density (≥4.25 g/cm³), providing maximum slag erosion resistance for critical areas. Medium Chrome bricks (≥70% or ≥80% Cr₂O₃) offer a balanced, cost-effective solution for less severe refractory lining environments.
What is the maximum service temperature for these chrome refractory bricks?
Our chrome bricks exhibit stable performance up to ≤1800℃ with refractoriness under load exceeding 1700℃ (0.2MPa, 0.6%), ensuring high structural stability without deformation under severe thermal stress.
How do chrome bricks resist chemical corrosion and molten slag penetration?
Due to their high chemical inertness, high bulk density, and low apparent porosity (≤16%), these bricks form an impenetrable barrier that significantly impedes molten slag and corrosive gas migration.
Are chrome bricks suitable for both oxidizing and reducing atmospheres?
Yes, high chromium refractory bricks maintain high chemical stability across oxidizing, reducing, and neutral atmospheres, making them widely versatile across diverse furnace systems.
What key industries benefit most from high chrome refractory linings?
Key industries include metallurgy (ladle slag lines, converter mouths), non-ferrous smelting (aluminum, copper, zinc), chemical processing (gasifiers, acid plants), glass manufacturing (furnace throats), and ceramic kilns.