• Spherical Sodium Silicate 70/140# Ceramic Foundry Sand
  • Spherical Sodium Silicate 70/140# Ceramic Foundry Sand
  • Spherical Sodium Silicate 70/140# Ceramic Foundry Sand
Spherical Sodium Silicate 70/140# Ceramic Foundry Sand

Spherical Sodium Silicate 70/140# 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
Get Best Price Contact Now

Detail Information

Commodity: Ceramic Sand Product Name: Ceramic Foundry 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
Main Material: 70% Al2O3 Min. Shape: Sphericial
High Light:

70/140# Ceramic Foundry Sand


Sodium Silicate Ceramic Foundry Sand


Spherical Sodium Silicate Sand

Product Description

Low breakage rate​ Ceramic Foundry Sand 20/40#,30/50#,40/70#,50/100#,70/140# For Sodium

Silicate Sand


1. Product Description of Ceramic Sand

Ceramsite is also called as Ceramic foundry sand.It selects the high quality bauxite as main raw material,

then made into different size through the process of calcination, electric melting, granulation, and sieving.


Ceramic sand has high refractoriness over 1790℃, it can help to reduce the sand adhering to the casting 

parts,especially when used for steel castings & stainless steel parts with higher temperature.So it is an

advanced substitute for quartz sand in casting industries.


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

Solid Sphere: Ceramsite has solid spherical shape with smooth surface,it will provide good flowability and

filling ability.


Low thermal expansion rate: it will guarantee the casting size, provide less crack and defect and improve

the output.


Low breakage rate: ceramsite has higher density and lower breakage rate at the reclaimation,which provide

one better reclaimation rate,then reduce the production cost.


High refractoriness: ceramsite contains Min. 70% Al2O3,which provide good refractory performance,then

suitable for all kinds of metal and alloy castings.


4. Main Applications & corresponding specification:

Lost Foam casting: Ceramsite 14#,20#,30#,14/20#,20/30#,20/40#

Investment casting: Ceramsite 100/200#

Sodium silicate sand:20/40#,30/50#,40/70#,50/100#,70/140#

Casting coating: 200#,270#,200/270#

Drainage sand: 20/30#,20/40#

Alloy surface treatment:40#,140#

Resin sand:40/70#,50/100#,50/140#,70/140#,100/200#

Spherical Sodium Silicate 70/140# Ceramic Foundry Sand 0


5. How to store the ceramic sand?

Use strong moisture-proof package;

Keep it in clean, dry and ventilated place;

Keep away from dust.


6. Why Ceramic Sand can replace the chromium sand as drainage sand?

Ceramic sand has lower bulk density and price compared with chromium sand,it will reduce the sand

consumption and final production cost.


Ceramic sand also has higher cast ratio,it will effectively reduce the strength of sintering layer,it is helpfu 

to drain;


Its lower thermal expansion rate can reduce the expansion rate and improve the yield rate.



Want to Know more details about this product
I am interested in Spherical Sodium Silicate 70/140# Ceramic Foundry Sand could you send me more details such as type, size, quantity, material, etc.
Waiting for your reply.