Clay brick
The mineral composition of clay brick is mainly kaolinite and 6% to 7% of impurities (potassium, sodium, calcium, titanium, iron oxides). Clay brick firing process is the continuous decomposition of kaolinite water loss to generate mullite (3AL2O3-2SIO2) crystallization process. S102 and AL2O3 in clay bricks form eutectic low melting point silicates with impurities during firing, surrounding the mullite crystals. The refractoriness of clay bricks is comparable to that of silica bricks, up to 1690~1730°C, but the load softening temperature is more than 200°C lower than that of silica bricks. Because the clay brick contains high refractoriness of mullite crystals, but also contains nearly half of the low melting point amorphous glass phase. In the clay refractory bricks according to the use of division, mainly have a blast furnace with clay refractory bricks, hot blast furnace with clay refractory bricks, carbon roasting kiln clay refractory bricks, bottom air hole clay bricks.
Q1: Are you a manufacturer or a trading company? A: We are a professional manufacturer with our own factory, specializing in refractory materials for years. Our annual capacity is 60,000 tons, ensuring competitive prices and reliable supply. Q2: What products can you supply? A: We produce a full range of refractory products, including refractory bricks high alumina bricks, clay bricks, magnesium-carbon bricks, silicon carbide bricks etc.), castables, ceramic fiber products, graphite products, and more. Q3: Do you have quality certifications? A: Yes. We have CE, MSDS, and Maritime Exploration certificates. For other specific certificate requirements, we are happy to assist. Q4: Do you accept customized orders (OEM/ODM)? A: Absolutely. We welcome OEM and ODM orders. We can customize products according to your specifications and drawings. Q5: What is your lead time? A: It depends on quantity. Small orders ship in 3-5 days. For bulk orders, we confirm the lead time after order review. Q6: What are your payment terms? A: We support multiple secure payment methods: T/T, Escrow, Western Union and etc. Q7: Can I get samples for testing? A: Yes, we provide samples for quality check. The courier charge are required. Q8: Why is there a mold fee? A: The mold fee covers custom tooling creation based on your design. Its a one-time charge and will be free for your repeat orders of the same product. Q9: How can I get the latest price? A: Please send us your specific product name and quantity. We will send you a detailed quotation within 2 hours.
