CHROMITE SAND

Foundry-Grade Chromite Sand

Name: Foundry-Grade Chromite Sand
Brand: GAA-MinRef Canada Inc.

Foundry chromite sand is valued for high thermal conductivity, resistance to elevated temperatures, low thermal expansion, and performance in demanding mould and core applications. Available grades include AFS 40–45 and AFS 45–50, subject to current batch availability.

Schematic of a sieve stack showing chromite sand grain-size distribution

Common applications

Specially treated moulds
Quality steel and alloy castings
Metal casting and automotive castings
Stainless-steel and other alloy castings
Metal ceramics
Selected refractory and metallurgical uses

Grade: AFS 40–45 — typical source-batch values
Analysis / property	Typical value
Cr₂O₃	46.42%
SiO₂	0.70%
FeO	25.90%
Cr:Fe ratio	1.58
CaO	0.11%
Al₂O₃	14.83%
MgO	10.13%
AFS	43.62
Moisture, reported	0.0005
Turbidity	162 NTU / 54 ppm
pH	8.19
L.O.I.	1.6%
Fines below 106 µm	0.31%
Average grain size	343 µm

Grade: AFS 45–50 — typical source-batch values
Analysis / property	Typical value
Cr₂O₃	45.20%
SiO₂	0.70%
FeO	28.60%
Cr:Fe ratio	1.39
CaO	0.20%
Al₂O₃	14.90%
MgO	8.90%
AFS	46.45
Moisture, reported	0.0005
Turbidity	198 NTU / 66 ppm
pH	7.13
L.O.I.	1.1%
Fines below 106 µm	0.86%
Average grain size	325 µm

Values shown are typical source-batch values and may vary by batch. They do not constitute a guaranteed specification unless confirmed in a written quotation or product-specific certificate of analysis. Current-lot COA, packaging, origin, minimum order quantity, and availability are supplied upon request.

Foundry-Grade Chromite Sand

Common applications

Request current COA and availability