High-Temperature Resistance from a Trusted Source
Our Casting Silica Sand starts with high-quality quartz from the Huangshan Mountain area. We have mined this source for 25 years. This sand has a very high refractoriness. It can withstand the heat and force of molten metal. This helps foundries avoid common defects like veining and burn-on. We supply this sand to precision casting and resin-coated sand processes. Our product gives foundries a stable base for making good castings.
Low Expansion for Better Casting Results
We process our Casting Silica Sand with advanced crushing and grading systems. The grains are round or oval in shape. The angularity factor is very low. This shape helps the sand flow well and allows gases to escape during pouring. It also saves resin or clay binder. Many of our customers see a 5-8% reduction in binder use. This makes our product a cost-effective choice. It also lowers the risk of gas holes and veining. The final castings have a smooth surface and a higher pass rate.
Precise Data You Can Rely On
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 98.5% |
Chemical Analysis |
|
Angularity Factor |
≤ 1.30 |
Microscopic Image Analysis |
|
Particle Size (D50) |
100μm - 400μm (Customizable) |
Sieve Analysis |
|
Mud Content |
≤ 0.20% |
Sedimentation Method |
|
Loss on Ignition |
≤ 0.30% |
High-Temperature Ignition |
|
Moisture Content |
≤ 0.10% |
Oven Drying Method |
|
Acid Demand Value |
≤ 5.0 ml |
Titration Method |
Tailored Solutions for Your Foundry
Different metals need different sand properties. Cast steel, cast iron, and aluminum alloys each have unique requirements. Our Casting Silica Sand is available in custom grades. You can specify your target particle size and chemical makeup. Our team can analyze your sample and adjust production within 2 working days. We accept orders starting from just 1 ton. This makes our product a flexible option for both small trials and large-scale production.
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