Zhengzhou Zhongkeda Refractory Materials Co., Ltd
Mullite bricks are high-alumina refractory materials with mullite (3Al2O3·2SiO2) as the primary crystalline phase, typically containing 65% to 75% Al2O3. Based on the manufacturing process, mullite bricks are mainly classified into sintered mullite bricks and fused mullite bricks.
Characters of Mullite Bricks:
• High Working Temperature:Operating reliably at up to 1700°C, suitable for extreme industrial furnaces.
• Superior Thermal Shock Resistance:Excellent performance in rapid temperature cycling conditions.
• Low Thermal Conductivity:Improves energy efficiency and minimizes heat loss.
• Corrosion & Erosion Resistance:Resists attack from slags, alkalis, and flue gases.
• Custom Shapes & Sizes Available:Tailored to meet your furnace design specifications.
Typical Applications of Mullite Bricks:
•Steel Industry: Furnace walls, roofs, burner blocks
•Glass Industry: Regenerators, forehearths
•Cement Industry: Kiln linings and transition zones
•Petrochemical Plants: Reformer linings, cracking furnaces
•Incinerators & Boilers: High-temperature zones requiring alkali resistance
Parameters of Mullite Bricks
| Item | AM | BM |
| Al2O3,(%)≥ | 55 | 55 |
| Fe2O3,(%)≤ | 1.3 | 1.3 |
| Apparent porosity,(%)≤ | 18 | 17 |
| Bulk density(g/cm3)≥ | 2.4 | 2.45 |
| Cold crushing strength(MPa)≥ | 65 | 75 |
| Refractoriness under load, ℃(0.2MPa,0.6%)≥ | 1500 | 1500 |
| Permanent Linear Change After Heating(%) |
1350℃*2h -0.3~0.2 |
1350℃*2h -0.3~0.2 |
Q1: Are you a manufacturer or trading company?
A1:We are a professional manufacturer of refractory bricks and materials with over [X] years of experience.
Q2:Can you provide samples?
A2:Yes, free samples are available. Customers only need to cover the shipping cost.
Q3: What is your delivery time?
A3:Generally 15–20 days after receiving the deposit. For urgent orders, please contact us for a faster solution.
Q4:Do you accept OEM or customized orders?
A4:Yes, we offer OEM services and can produce according to your drawings or specifications.
Q5: How do you ensure product quality?
A5:We have strict quality control procedures from raw material selection to final inspection. All products are tested before delivery.
Q6:What payment methods do you accept?
A6:We accept T/T, L/C, and other secure payment methods.
