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.
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.
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.
South Africa chromite 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.
South africa chrome ore lumpy is a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3 46.0%min
SiO2 1.0%max
FeO 26.5%max
CaO 0.3%max
MgO 10.0%max
Al2O3 15.5%max
P 0.003%max
S 0.003%max
Cr/Fe 1.55/1
Physical composition
Bulk Density 2.5-3g/cm3
Specific Gravity 4.0-4.8g/cm3
PH Value 7-9
The amount of the acid 2ML max
Percent soil 0.1%max
The sintered 1600
Filling Density 2.6g/cm3
melting temperature 2180°C
Available size
AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65
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Product Description
South africa chrome ore foundry sand
South africa chrome ore foundry sand use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The foundry sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3
46.0%min
SiO2
1.0%max
FeO
26.5%max
CaO
0.3%max
MgO
10.0%max
Al2O3
15.5%max
P
0.003%max
S
0.003%max
Cr/Fe
1.55/1
Physical composition
Bulk Density
2.5-3g/cm3
Specific Gravity
4.0-4.8g/cm3
PH Value
7-9
The amount of the acid
2ML max
Percent soil
0.1%max
The sintered
1600
Filling Density
2.6g/cm3
melting temperature
2180°C
Products Show
Packing
1MT BIG BAG
with 4 handles and top spout
1MT BIG BAG
with 4 handles,top spout and buttom spout
Product Description
Factory wholesale best quality chrome ore sand
chrome ore sand for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3
46.0%min
SiO2
1.0%max
FeO
26.5%max
CaO
0.3%max
MgO
10.0%max
Al2O3
15.5%max
P
0.003%max
S
0.003%max
Cr/Fe
1.55/1
Physical composition
Bulk Density
2.5-3g/cm3
Specific Gravity
4.0-4.8g/cm3
PH Value
7-9
The amount of the acid
2ML max
Percent soil
0.1%max
The sintered
1600
Filling Density
2.6g/cm3
melting temperature
2180°C
Products Show
Packing
1MT BIG BAG
with 4 handles and top spout
1MT BIG BAG
with 4 handles,top spout and buttom spout
1MT BIG BAG
with 2 handles and top spout
Main Application
Chromite Sand in the foundry industry
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin bonding systems and inorganic binders, it has a high refractoriness and a broad sieve distribution.
Chromite Sand in the steel industry
In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.
chrome ore sand in the glass industry
When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers.
Product Description
south africa chrome ore sand substitute for chromite sand
chromite sand is a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3
46.0%min
SiO2
1.0%max
FeO
26.5%max
CaO
0.3%max
MgO
10.0%max
Al2O3
15.5%max
P
0.003%max
S
0.003%max
Cr/Fe
1.55/1
Physical composition
Bulk Density
2.5-3g/cm3
Specific Gravity
4.0-4.8g/cm3
PH Value
7-9
The amount of the acid
2ML max
Percent soil
0.1%max
The sintered
1600
Filling Density
2.6g/cm3
melting temperature
2180°C
Products Show
Packing
1MT BIG BAG
with 4 handles and top spout
1MT BIG BAG
with 4 handles,top spout and buttom spout
1MT BIG BAG
with 2 handles and top spout
Main Application
Chromite Sand in the foundry industry
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin bonding systems and inorganic binders, it has a high refractoriness and a broad sieve distribution.
Chromite Sand in the steel industry
In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.
Chromite Sand in the glass industry
When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers.
FAQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer.
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, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
Chromite Foundry sand AFS25/30/35/40/45/50/55/60/65/70/80
Origin:South Africa
We Import Chrome ore from South Africa,wash,dry,sieve,test,pack in China port,then export from China port.
Origin:South Africa
The specification is as follows:
Cr2O3:46.0%min
SiO2:1.0%max
FeO:26.5%max
CaO:0.30%max
MgO:10.0%max
Al2O3:15.5%max
P:0.003%max
S:0.003%max
PACKING:1MT big bag
SIZES:AFS 25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65 325MESH 400MESH
Foundry chromite sand AFS25-30-35-40-45-50-55-60-65-70-80
Origin:South Africa
We Import Chrome ore from South Africa,wash,dry,sieve,test,pack in China port,then export from China port.
Origin:South Africa
The specification is as follows:
Cr2O3:46.0%min
SiO2:1.0%max
FeO:26.5%max
CaO:0.30%max
MgO:10.0%max
Al2O3:15.5%max
P:0.003%max
S:0.003%max
PACKING:1MT big bag
SIZES:AFS 25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65 325MESH 400MESH
Foundry chromite sand for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3 46.0%min
SiO2 1.0%max
FeO 26.5%max
CaO 0.3%max
MgO 10.0%max
Al2O3 15.5%max
P 0.003%max
S 0.003%max
Cr/Fe 1.55/1
chromite ore for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Foundry chromite sand for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
South africa chrome ore lumpy is a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3 46.0%min
SiO2 1.0%max
FeO 26.5%max
CaO 0.3%max
MgO 10.0%max
Al2O3 15.5%max
P 0.003%max
S 0.003%max
Cr/Fe 1.55/1
Physical composition
Bulk Density 2.5-3g/cm3
Specific Gravity 4.0-4.8g/cm3
PH Value 7-9
The amount of the acid 2ML max
Percent soil 0.1%max
The sintered 1600
Filling Density 2.6g/cm3
melting temperature 2180�C
Chromite is a mineral and can be described as an iron chromium oxide, with a chemical formula of FeCr2O4. It is an oxide mineral belonging to the spinel group. The element magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite
origin : south africa,pakistan,iran,albanian ,sudan,zimbabwe,oman,turkey
Foundry chromite sand for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Physical composition
Bulk Density 2.5-3g/cm3
Specific Gravity 4.0-4.8g/cm3
PH Value 7-9
The amount of the acid 2ML max
Percent soil 0.1%max
The sintered 1600
Filling Density 2.6g/cm3
melting temperature 2180°C
Refractory Chrome Ore Lumpy
Top quality Chrome Ore Lumpy manufacturer (south africa).The chromite sand is a product of south africa natural chromite ore after crushing and sieving, and its main chemical composition is Cr2O3.
*Melting point of 2150°C
*Good thermal conductivity
*Good resistance to thermal shock
*Excellent resistance to metal penetration or burn-on
application
Casting material
2refractory material
3modeling
4Steel mill drainage
5sand blast
6Descale
7Chilling material
8Sandblasting and rust removal
9The veil of large steel castings to prevent sand sticking on the surface of castings
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.
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.
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