Premium-grade quartz sand with SiO2 content of 99%+, providing high-purity silica for steelmaking slag formation, foundry molding, and refractory applications. Precisely graded for consistent performance in metallurgical processes.
High-purity quartz sand is a foundational raw material in steelmaking, serving as the primary source of silica (SiO2) for slag engineering in both primary and secondary metallurgical processes. In electric arc furnace operations, quartz sand is added as a flux component to form the acidic component of the basic slag system (CaO-SiO2-MgO-Al2O3), where the SiO2 content directly influences slag viscosity, melting point, and its capacity to absorb deoxidation products and impurities from the steel bath. With SiO2 content of 99%+ and Fe2O3 below 0.03%, our quartz sand introduces minimal impurity load into the slag system, preserving the carefully designed slag chemistry that modern clean steel production demands.
In ladle metallurgy, quartz sand plays a critical role in adjusting slag basicity—the ratio of basic oxides (CaO, MgO) to acidic oxides (SiO2, Al2O3, P2O5)—which governs the slag’s thermodynamic capacity for desulfurization and dephosphorization. For most refining applications, a basicity ratio (V-ratio) of 2.0–3.5 is targeted, and precise SiO2 control is essential for maintaining this ratio within the optimal window. Our quartz sand’s consistent chemical composition eliminates the batch-to-batch variability that can shift slag basicity and compromise desulfurization performance, which is particularly critical in the production of line pipe steel grades where sulfur specifications can be as low as 0.003%.
Beyond steelmaking, our quartz sand serves the foundry industry as a premium molding and core sand for steel and iron casting production. The precisely controlled particle size distribution (AFS grain fineness number 40–70) provides optimal packing density for mold strength while maintaining sufficient permeability for gas escape during pouring. The low Fe2O3 and Al2O3 content minimizes metal-mold reaction defects, including burn-on and penetration, which are particularly problematic in high-temperature steel casting applications. The sand is processed through washing, scrubbing, and classification to remove clay, organic matter, and oversized particles, ensuring consistent performance in both green sand and resin-bonded molding systems.
Send your application, grade, size, and quantity requirements by email for a faster response.
Request a Quote
Thermal insulating covering agent designed to form a protective layer over molten steel in ladles and tundishes. Prevents heat loss, atmospheric re-oxidation, and nitrogen pickup while absorbing floating inclusions from the steel surface.
Pre-melted synthetic refining slag with optimized CaO-Al2O3-SiO2-CaF2 chemistry for high-efficiency desulfurization, dephosphorization, and inclusion absorption in ladle metallurgy. Engineered for rapid slag formation and consistent refining performance.
Standard FeSi 75% ferrosilicon alloy, the workhorse deoxidizer and silicon source in steelmaking. Provides reliable silicon recovery for deoxidation, alloying, and cast iron inoculation across the full spectrum of steel grades.