AFS25-30 chromite sand/ foundry chrome price

Product description of Foundry chromite sand:

 

Foundry chromite sand is a natural process products of chromite through the broken screen classification, chrome ore, its main chemical composition of cr2o3, this kind of sand heated volume stability, high thermal conductivity, when in contact information with the molten metal, not only has good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to touch sand defects, suitable for all kinds of stainless steel, alloy steel and carbon steel gradually shape the original sand core and coating.

Advantages of SICHENG of Foundry chromite sand:

 

1. With excellent chilling characteristics, this characteristic does not reduce the thermal cracking, but can affect the temperature gradient, promote directional solidification without the use of cold iron.

2. Chromite is inert and does not react with other metal oxides. It is not wetted by manganese steel water. Chromite can be successfully used in manganese steel castings.

3. Linear expansion is small, and linear expansion is a factor that may cause sand inclusion in castings, so it may be used to mix wet sand mold for large castings. 

 

Physical and chemical index of Foundry chromite sand:: 

 

Physics	Index	Chemistry	Index
Bulk Density	2.5-3g/cm³	Cr2O3	≥46.0%
PH Value	7-9	SiO2	≤1.0%
Cr/Fe	1.55:1	Fe2O3	≤26.5%
Filling Density	2.6 g/cm³	CaO	≤0.30%
Percent Moisture	≤0.1	MgO	≤10%
The sintered	1600°C	AI2O3	≤15.5%
Sintering Temperature	2180°C	P	≤0.003%
Melting Point	>1800°C	C	≤0.003%
Regular size
AFS 25-35 AFS25-30 AFS30-35 AFS35-40                                             AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65

 

  

The production process of Foundry chromite sand::

 

Step1: chrome ore raw material is processed by water washing.

Step2, drying raw materials to remove water;

Step3, drying raw materials into the vibrating screen, screening out the size of the customer needs;

Step4, the size of the sieve for magnetic separation, the purpose of iron and silicon removal. After magnetic separation, the chromium content reached more than 46% and the silicon content was less than 1%.

Step5: package the finished product.

 

Foundry chromite sand/Foundry chromite sand/Foundry chromite sand/

Foundry chromite sand/Foundry chromite sand/Foundry chromite sand/

Foundry chromite sand/Foundry chromite sand/Foundry chromite sand/

FAQ: 

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

 

Henan sicheng abrasive and refractory technology co., LTD

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Business Type:Manufacturer, Trading Company

Main Products:white fused alumina, brown fused alumina,silicon carbide,garnet sand,glass beads,chromite sand

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