Chromite flour 325# for foundry plaint
Chromite flour 325mesh# can be professionally used as high temperature coating when smelting various casting parts. The reasons are as follows:
Chromite ore powder has a high refractoriness (>1900°C). After grinding, it is added to the casting paint as a refractory aggregate, which can significantly improve the fire resistance of the paint, so that it is difficulty to be ablated, softened or dropped at high temperature, so as to ensure the integrity of the cast and core .
In addition, chromium mineral powder also has a good anti-alkaline slag effect, can prevent the penetration of molten metal, effectively prevent the surface of the casting sand, so as to improve the quality of the casting .
Physical and chemical properties of ferrochrome ore powder Ferrochrome ore powder has the following characteristics:
Higher hardness : usually on the Mohs hardness tester can be measured 5.5-6.5 hardness value .
Density : usually between 3.0-4.5 g/cm ³ .
High refractoriness : refractoriness of more than 1900°C.
Chemical composition . The main component is chromite (FeCr₂O₄) .
These characteristics make the ferrochrome ore powder perform well at high temperatures and is suitable for use in casting coatings.
Our chromite flour 325#, also known as chromium powder, is made from high-quality L6 layer chrome ore imported from South Africa. It is a natural ore. After washing, drying, crushing, screening, grinding and other processes, different types of chrome ore sand and chrome ore powder are produced.
Available size for chromite flour:
200MESH, 325MESH, 400MESH, 500MESH, 600MESH, 800MESH, 1000MESH, 1200MESH, 1500MESH, 2000MESH, 2500MESH
Chemcial data：
| Size | Cr2O3 | FeO | Al2O3 | SiO | MgO | Cr/Fe |
| 325# | 46%min | ≤26.5% | ≤15.5% | ≤1.0% | ≤10.0% | 1.55:1 |
Physical data：
| Appearance | Black |
| Melting point | 2150°C |
| PH | 7-9 |
| The amount of the acid | ≤ 2 ML |
| Percent soil | ≤0.1 |
| Percent Moisture | ≤0.1 |
| The sintered | 1600 |
| Percentage of free acid present in the sand | 0 |
Chromite flour 325#mesh:
Normal package:
1000kgs/jumbo bag
25kgs/pvc bag, 40 pvc bags/jumbo bag
Workshop:
Warehouse and shipping:
