• Casting Drainage 20/40# Fused Ceramic Foundry Sand
  • Casting Drainage 20/40# Fused Ceramic Foundry Sand
  • Casting Drainage 20/40# Fused Ceramic Foundry Sand
Casting Drainage 20/40# Fused Ceramic Foundry Sand

Casting Drainage 20/40# Fused Ceramic Foundry Sand

Product Details:

Place of Origin: China
Brand Name: Zhengtong
Certification: ISO9001,ISO14001
Model Number: 14#-270#

Payment & Shipping Terms:

Minimum Order Quantity: 1000kgs
Price: Negotiable
Packaging Details: Ton Bag
Delivery Time: 3-7 days after order confirmed
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 2500mt per month
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Detail Information

Commodity: Ceramic Foundry Sand Product Name: Fused Ceramic Sand
Color: Grey Brown PH Value: 7-8
Refractoriness: ≥1790 ℃ Bulk Density: 1.9-2.1g/cm3
True Gravity: 3.3g/cm3 Average Coefficient Of Linear Expansion: ≤6*10-6℃-1
High Light:

20/40# Fused Ceramic Foundry Sand


Fused Ceramic Foundry Sand


Drainage Fused Ceramic Sand

Product Description

High Refractoriness Ceramsite Ceramic Sand 20/30#,20/40# For Drainage Sand


1. Product Description of Ceramic Sand


Ceramsite sand is also called as ceramic foundry sand,it selected the high quality bauxite as main material,

then fused in arc furnace,finally made into different size through special technology.

It contains 70% Min Al2O3,its chemical composition is very similar to the one of black fused alumina,while

they are quite different since they are made through different technology after the melting process, then

achieved different shape and applications. Ceramsite sand is mainly used for casting industries,while black

fused alumina is used for abrasives,anti-skip roads etc.


2. Main Technical Data of Ceramic Sand

Commodity Main Chemical Index Main Physical Index
Ceramic Sand Al2O3 ≥70%
Fe2O3 ≤3%
K2O3+Na2O <1%
L.O.I <0.3%
Shape: Round
Color:Gray Brown
Refractoriness:≥1790 ℃
Bulk Density:1.9-2.1g/cm3
True Gravity:3.30g/cm3
Coefficient of Expansion:0.13%
(Heat 10Minutes under 2000℃)
Thermal Conductivity:0.698W/m*K
(Heated Surface 800℃)
Angle coefficient:≤1.1
(Very similar to spherical)
Water Content≤0.1%
Mud Content≤0.1%
Average Coefficient of Linear Expansion≤6*10-6-1
Grit Size 14#,20#,30#,40#,50#,70#,100#,140#,200#,270#
Section Sand 14/20,20/30,20/40,20/50,30/50,40/50,40/70,50/100
Remark Special specification can be customized


3. Main Features of Ceramic Sand

High refractoriness over 1790℃;

Good sphericity;

High recycle utilization rate;

Good collapsibility;

Low thermal expansion.

4. Main Applications of Ceramic Foundry Sand:

Widely used resin sand: phenolic resin coated sand,hot-core box resin sand,blow hardening cold core resin

sand,self-hardening sand;

Lost Foam casting;

Investment casting;

Sodium silicate sand;

Casting coating;

Drainage sand;

Alloy surface treatment.

Casting Drainage 20/40# Fused Ceramic Foundry Sand 0

5. Why ceramsite is widely used in lost foam casting?

Ceramsite effectively solves casting defects such as sand inclusions and pores,improve the product quality,

reduce the cleaning and grinding costs, also increase the product yield by 7-10%.


Ceramsite has good abrasion resistance, low dust,its annual loss rate does not exceed to be 5%.


So it is widely used for lost foam casting industries,suitable for production of casting iron,casting steel,hadifield

steel etc.

6. How Ceramic sand affects the quality of casting quality?

The alumina content of ceramic sand will affect its crushing rate &durability,so casting made by different materials has

different alumina requirement for ceramic sand.High alumina ceramic sand is required when needing multiple strong



The mud content of ceramic sand also affects the casting quality;


The average fitness and particle size distribution also affects the casting quality.


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