Mullite Sand

Short Description:

Model: 8-16/16-30/30-60/60-80/80-120/200/300 Mesh
Materials: Mullite
Color: White/Gray
SiO2: 47%-53%
Al2O3: 43%-50%
CaO: ≤0.50%
Refractoriness: 1580°< Refractoriness<1770°
K2O+Na2O: ≤0.8%
Fe2O3: ≤2.1%
TiO2: ≤0.3%
Bulk Density: ≥2.45g/cm3
Package: 25KG/1000KG Bag
Application: Precision Casting
Sample: Available

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Product Detail

Product Tags

Product Information

Mullite sand is an aluminum silicate refractory material, generally used in stainless steel precision casting process. The refractoriness is about 1750 degrees. The higher the aluminum content in mullite sand, the lower the iron content, and the smaller the dust, the better the quality of the mullite sand product. Mullite sand is made by high-temperature sintering of kaolin.

Features: The poured castings are easy to peel off, not deformed, not easy to shrink, have good smoothness and high yield rate.

Mullite sand is generally divided into 8-16 mesh, 16-30 mesh, 30-60 mesh, 60-80 mesh, 80-120 mesh;

Mullite powder is generally 200 mesh, 300 mesh, etc.

Details Images

Product Index

Item	Specification	Supper Grade
1	Al2O3 %	43-50
2	SiO2%	47-53
3	Fe2O3%≤	2.1
4	K2O+Na2O%≤	0.8
5	CaO%≤	0.5
6	TiO2%≤	0.3
7	Density(g/cm3)≥	2.45

Application

1. Mullite sand is suitable for large, medium and small precision castings such as stainless steel, alloy steel, carbon steel, heat-resistant steel, titanium alloy, nickel alloy, aluminum alloy, cast iron, cast copper, etc.

2. Mullite sand is suitable for precision casting, silica sol precision casting, lost wax casting, cast steel, cast copper, vacuum casting, gypsum filler V method casting coating, casting mold shell, etc.

Advantages: The cast parts are easy to peel off, not deformed, not easy to shrink, with good finish and high yield.

Reference Process For Precision Casting Shell Making
The general surface slurry, zirconium powder	325 mesh+silica sol	Sand: zirconium sand 120 mesh
Back layer slurry	325 mesh+silica sol+mullite powder 200 mesh	Sand: mullite sand 30-60 mesh
Reinforcement layer	Mullite powder 200 mesh+silica sol	Sand: mullite sand 16-30 mesh
Sealing slurry	Mullite powder 200 mesh+silica sol	_

Our Factory

Package&Warehouse

Company Profile

Shandong Robert New Material Co., Ltd. is located in Zibo City, Shandong Province, China, which is a refractory material production base. We are a modern enterprise that integrates the research and development, production, sales, kiln design and construction, technology, and export refractory materials. We have complete equipment, advanced technology, strong technical strength, excellent product quality, and good reputation. Our factory covers over 200 acres and an annual output of shaped refractory materials is approximately 30000 tons and unshaped refractory materials is 12000 tons.

Our main products of refractory materials include: alkaline refractory materials; aluminum silicon refractory materials; unshaped refractory materials; insulation thermal refractory materials; special refractory materials; functional refractory materials for continuous casting systems.

Robert`s products are widely used in high-temperature kilns such as non-ferrous metals, steel, building materials and construction, chemical, electric power, waste incineration, and hazardous waste treatment. They are also used in steel and iron systems such as ladles, EAF, blast furnaces, converters, coke ovens, hot blast furnaces; non-ferrous metallurgical kilns such as reverberators, reduction furnaces, blast furnaces, and rotary kilns; building materials industrial kilns such as glass kilns, cement kilns, and ceramic kilns; other kilns such as boilers, waste incinerators, roasting furnace, which have achieved good results in using. Our products are exported to Southeast Asia, Central Asia, Middle East, Africa, Europe, Americas and other countries, and has established a good cooperation foundation with multiple well-known steel enterprises. All employees of Robert sincerely look forward to working with you for a win-win situation.

Frequently Asked Questions

Need help? Be sure to visit our support forums for answers to your questions!

Are you a manufacturer or a trader?

We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.

How do you control your quality?

For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.

What is your delivery time?

Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.

Do you provide free samples?

Of course, we provide free samples.

Can we visit your company?

Yes, of course, you are welcome to visit RBT company and our products.

What is the MOQ for trial order?

There is no limit, we can provide the best suggestion and solution according to your situation.

Why choose us?

We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.

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