Payment & Shipping Terms:
Refractory clay product calcined flint clay
Flint clay are a mixture of aluminum silicates.The main chemical constituents are Al2O3 and SiO2, and the impurities are mainly alkali, alkaline soil, iron, titanium and other oxides, as well as some organic compounds.All kinds of oxides play a role in melting, which can reduce the refractoriness of raw materials.Therefore, the lower the impurity content, especially the Na2O+K2O content, the higher the fire resistance.The closer the Al2O3/3SiO2 ratio is to the theoretical value (A /S=0.85), the higher the purity of the gemstone is.The larger the A/S, the higher the fire resistance of the gemstone, the wider the sintering melting range.The chamotte refractoriness with high quality can reach more than 1750 ℃.
Siize: according to customers' exact requirments.
Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-15mm, 100mesh, 150mesh, 180mesh, 200mesh, or according to customer’s requirments.
|Al2O3 (%, min)||45-48||44-47||43-45||42-44||40-42|
|Fe2O3 (%, max)||1.0||1.2||1.5||1.8||2.0|
|Bulk Density (g/cm3)||2.60||2.55||2.53||2.50||2.48|
|Refractiness de. C Min||1770||1770||1750||1730||1710|
|LOI (% max0||0.28||0.30||0.30||0.30||0.32|
Packing: 50Kg Polythene laminated H.D.P.E. bags or according to customer's requirements.
Q:What's the payment term that u can accept?
A: T/T or L/C
Q: How can I get samples?
A: We are glad to offer you the samples for your testing and checking our quality. Please feel free to contact with us to get it.
Q:Does your company accept customization?
A:We accept OEM service
Q: What is your Minimum Order Quantity?
A:Usually 1 MT, but for trial order, less quantity can be accepted. The price can be discount for the large order.