Iron Chromite Sand 0-1mm

Iron Chromite sand 0-1mm not only works well as a drainage refractory material for steelmaking, but also in the field of high-temperature casting. Iron Chromte sand has the characteristics of fewer sharp particles, excellent refractory and slag resistance, small thermal expansion coefficient, outstanding thermal conductivity, and high strength. Compared with quartz sand, the refractory performance is improved by one level. Compared with zircon sand, the cost is much lower. Therefore, Ferro chromite ore sand is widely used in the casting industry.

Other name:Chromite sand, Iron chromite sand, Ferro Chromite sand, Chrome ore sand, Sabbia di Cromite,La cromite,La arena de cromita,cát cromit,arena cromita,хромитовый,KROMİT KUMU,Chromerzsand, Хромовые руды, хромовые руды, хромовые руды, Eisen Chromit Sand, Ferro Chromit Sand, Chrom Erz Sand,철크롬광사, 크롬철광사, 크롬광사

Iron Chromite Sand 0-1mm Characteristics:

High melting point, high sintering temperature
Excellent thermal stability
High density, high density –
Medium Mohs hardness 5.5
Strong thermal conductivity
Low coefficient of thermal expansion

Technical Index of Iron Chromite Sand 0-1mm:

Chemicals

Content	Guarantee Value	Typical Value
Cr₂O₃	≥ 46%	46.70
SiO₂	≤ 1.0%	0.61
FeO	≤ 26.5%	26.2
Cr:Fe	≥1.5:1	1.55
MgO	≤ 10%	9.8
CaO	≤ 0.3%	0.3
Al₂O₃	≤ 15.5%	15.4
P	≤30 ppm	28 ppm
S	≤30 ppm	27 ppm

Physical index:

Mohs Hardness	5.5-6
Melting Point	2180 ℃
Sintering Point	＞1800℃
Specific Gravity	4.0-4.8 g/cm3
Bulk Density (LPD)	2.5-3 g/cm3
Color	Black
PH Value	7-9
Thermal conductivity	0.63 W/M·K
Thermal Expansion Rate（1000℃）	0.6%
Acid Demand Value (ADV)	PH3:≤ 3ML PH4: ≤ 2ML PH5: ≤ 2ML
Turbidity(NTU)	≤ 200
Soil content	≤0.1%
Moisture	≤0.1%

Available specification of Iron Chromite Sand 0-1mm:

+20mesh(850um)	0.023
+30mesh(600um)	0.224
+40mesh(425um)	0.389
+50mesh(300um)	0.325
+70mesh(212um)	0.032
+100mesh(150um)	0.007
+140mesh(106um)	0
AFS FINESS	AFS 31.47

Applications of Iron Chromite Sand 0-1mm:

Large scale thick walled casting: Chromite sand combined with sand casting, furan resin self hardening sand, water glass self hardening sand and other processes are used for large volume and weight cast iron and steel castings. It can cool the castings in a predetermined order, which is conducive to improving the internal tightness of the castings and enhancing their strength. In addition, for the process of using silica sand, chromite ore sand can be used as surface sand instead of silica sand in key areas where porosity and veins are prone to occur, which can effectively prevent casting defects such as cracks and porosity.
Lost foam casting. In lost foam casting, using chrome ore sand can prevent defects such as sand inclusion and sticking caused by quartz sand casting. Used for manufacturing castings such as valves and impellers made of high chromium cast steel and high manganese steel materials.
Shell casting: Chromite sand can be used as a core sand material for complex components in shell casting, making sand cores. Used for producing high-precision, smooth surface 304316 stainless steel castings and carbon steel precision castings. It can effectively prevent the problem of sand sticking in the inner cavity of castings.
Sand casting: Chromite sand can also be used for sand casting, such as sand casting, water glass self hardening sand casting, etc., to produce various large, medium, and small parts, such as pump bodies, pipelines, valves, etc.