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Sphercal Ceramsite Sand Chemical Composition Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max SiO2 (%)：820% MgO Content (%)：0.5%max CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max Physical Character Grain type: ball, spherical Angularity: 1.1 max, similar to ball Packing density: 1.95-2.05 g/cm3 Refractoriness: 1790 C min Thermal expansion: 0.13% (10 min at 1000 C ) Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh  Main Advantage 1.Stabe quality on the chemical composition 2.Perfect grain round shape and various grain sizes 3.High gas permeability 4.High temperature resistance 5.Good break down and fast curing and good release 6.Perfectly round shape with higher fluidity improves fill-in efficiency while reducing the resin level 7.Smooth surface of spherical shape greatly improves collapsibility after pouring 8.Very low thermal expansion ensures fewer or no casting defects such as veining and deformation 9.Excellent thermal conductivity and heat absorption capacity close to that of Zircon 10.Superior refractory equivalent to Zircon and Chromites  Applications 1.Widely used in foundry technique like resin-bonded sand, sodium silicate sand, and clay- bonded sand for sand core and casting mould making 2.Replace chromite sand and widely used in sand core making like jacket core, oil duct core, tappet core of engine. 3.Replace chromite sand for steel casting facing sand and sub-layer of molding sand (backing sand). 4.Widely used as dry sand and sand box for EPC process and V method of casting processes. 5.Widely used as the main raw materials of advanced refractory products (Ladle drainage sand,gravity casting material, casting coating, etc.).

Sphercal Ceramsite Sand Chemical Composition SiO2 5– 15% Al2O3 70–85% Fe2O3 5%min TiO2 5%min MgO 0.5%min K2O 0.5%min CaO 0.5%min Physical Character Grain shape Perfect round ball shape Color Brown-Black Angle index 1 .1 max Size rang 0.053-3.36mm Loose Bulk Density 1.9 – 2.1 g/cm3 Refractoriness 2050 DegreeC Liner thermal expansion (200 DegreeC - 1000 DegreeC) 5×10-6/ DegreeC  Main Advantage 1 Stabe quality on the chemical composition 2 Perfect grain round shape and various grain sizes 3 High gas permeability 4 High temperature resistance 5 Good break down and fast curing and good release 6 Perfectly round shape with higher fluidity improves fill-in efficiency while reducing the resin level 7 Smooth surface of spherical shape greatly improves collapsibility after pouring 8 Very low thermal expansion ensures fewer or no casting defects such as veining and deformation 9 Excellent thermal conductivity and heat absorption capacity close to that of Zircon 10 Superior refractory equivalent to Zircon and Chromites  Applications 1 Widely used in foundry technique like resin-bonded sand, sodium silicate sand, and clay- bonded sand for sand core and casting mould making 2 Replace chromite sand and widely used in sand core making like jacket core, oil duct core, tappet core of engine. 3 Replace chromite sand for steel casting facing sand and sub-layer of molding sand (backing sand). 4 Widely used as dry sand and sand box for EPC process and V method of casting processes.  5 Widely used as the main raw materials of advanced refractory products (Ladle drainage sand,gravity casting material, casting coating, etc.). 6 Widely used as cleaning sand for copper and aluminum alloy castings. PS:The main performance comparison of ceramsite sand,Chromite sand and Zircon Sand   Ceramsite Sand Zircon Sand Chromite Sand PH Value 7.65 4.56 8.24 Bulk Density(g/cm3) 1.95-2.05 2.9-3.1 2.6-2.7 True Density(g/cm3) 3.4 4.4-4.71 3.9-4.8 Shape spherical Irregular Irregular Binder into water(Waterglass +CO2 Hardness) 3-4% 7-8% 7-8%

Ceramsite specification 1.  Introduction   Ceramsite, also called as NFS CERAMSITE-Nice Foundry Sand, is kind of man-made spherical shape ceramic particles featured by high refractoriness, low thermal expansion made by spraying melted from the fused bauxite. It provides a simple and efficient way in the foundry industry to improving the quality of the castings, reducing the production cost and avoiding environmental pollution so it is much better than silica sand.  And it is also good substitution to Chromite sand and Zircon sand because of its lower price.At the present, Ceramsite is acknowledged in the worldwide as the newest and the best ideal sand for the foundries and has a very wide feasibility of applications for the future development.   2. Specification Shape: Sphere Angle Factor: <1.1 Bulk Density: 1.95-2.05 (g/cm3) Refractoriness: >1790 DegreeC Thermal expansion: 0.13% (10 minutes under 1000 DegreeC) Main Chemical composition (typical value as following table):          Unit Al2O3 SiO2 Fe2O3 TiO2 CaO MgO K2O Na2O % 75.36 17.72 2.16 3.23 0.43 0.35 0.33 0.08     3. CERAMSITE advantages Solid sphere: The shape of Ceramsite is spherical with smooth surface and less surface area and offering a very good flowability and filling ability. To compare with other sands else, less binder is used at the same mold strength and higher venting ability. It also offers the excellent collapsibility. Lower thermal expansion rate: It makes the dimensions of castings better, less crack and defect and higher output. Lower breakage rate: Ceramsite has a higher density and a very lower breakage rate at the reclaimation. It makes a better reclamations rate to reduce the waste sand and the pollution. High refractoriness: The major chemistry is Al2O3 and SiO2, so mostly mullite and corundum phase in the Ceramsite which will make sure the high refractoriness and thermal stablity. And PH Value appears neutral. It is suitable for all kinds of metal and alloy castings.   4. Particle Size Distribution of Ceramsite The particle size distribution can be custom-made according to any customer’s specific requirement.   Spec 10 16 20 30 40 50 70 100 140 200 270 Pan AFS Range 1700 1180 850 600 425 300 212 150 106 75 53 Pan 200#   <2 15-40 30-55 15-35 <3             15-25 300#     <10 25-45 35-55 5-15 <5 <2         25-29 400#       <10 25-45 20-40 5-25 <7 <5       35-39 500#       <3 10-25 25-40 25-45 10-25 <10 <5     45-55 600#         <10 10-30 30-50 15-35 <15 <5 <2 <1 55-65 650#         <8 10-25 20-45 20-45 5-20 <7 <2 <1 60-70 750#           <10 10-25 25-45 15-35 <15 <5 <2 75-85 1000#             <3 10-35 35-55 15-35 <10 <5 95-115 1250#             <2 5-20 30-50 25-45 5-20 <8 115-135 1500#               <5 5-25 40-60 25-40 <15 155-175 1800#                 <5 35-55 25-45 <25 180-210    5.  Application Area   1.Foundry 2.Surface shot peening 3.Starting Mix for steel Ladle 4.Refractory Costing

Specifications Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max SiO2 (%)：820% MgO Content (%)：0.5%max CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max Grain type: ball, spherical Angularity: 1.1 max, similar to ball Packing density: 1.95-2.05 g/cm3 Refractoriness: 1790 C min Thermal expansion: 0.13% (10 min at 1000 C ) Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh Product Description   Ceramic Foundry Sand also named ( Ceracite, Fused Ceramic, Ceramic Sand), Ceramic Foundry Sand is fused in the electric Furnace with high quality bauxite as the raw material, our Capacity is 18000MT per year. Ceramic Foundry Sand is widely used in various casting ways ( investment casting, full mold casting, lost foam casting and so on ); Ceramic Foundry Sand is the new type casting sand used in precision casting, resin coated sand,  self-hardening sand. And also can be used for shot peening( aluminum, copper, steel casting).Ceramic Foundry Sand with reasonalbe price, Ceramic Foundry Sand has advantage of cost and performance than chromite sand and zircon sand; especially low expansion, unsintered , non pulverise , non craze Non stick (Eliminate the negative infection on the quality of casting ),  regeneration performance good, and increase the production yield of casting.  

Specifications Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max SiO2 (%)：820% MgO Content (%)：0.5%max CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max Grain type: ball, spherical Angularity: 1.1 max, similar to ball Packing density: 1.95-2.05 g/cm3 Refractoriness: 1790 C min Thermal expansion: 0.13% (10 min at 1000 C ) Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh  Description Ceramic Foundry sand is made from fine bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc. Advantages Spherical grain, low thermal expansion, good anti-breakness, well refractory, low density, neutral materials   Application Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles polishing   Packing 25kg/bag or others