The Hidden Value of Metallurgical Grade Silicon Carbide

Why Leading Steel Mills are Switching from FeSi to SiC 90%?

In the competitive landscape of modern steelmaking, balancing chemical precision with cost-efficiency is the ultimate challenge. While many refineries traditionally rely on ferrosilicon, the shift towards Metallurgical Grade Silicon Carbide (Met-SiC) as a primary deoxidizer is accelerating.

At ZhenAn  , our experience with global foundries has proven that using high-quality SiC 88%-90% isn’t just a substitution—it’s a process optimization.

Critical Properties of Metallurgical SiC for Industrial Use

Unlike semiconductor-grade SiC, metallurgical grade focus on chemical reactivity and exothermic stability. Here are the technical properties that matter most in the furnace:

How Met-SiC Solves Your Production Pain Points

1. Drastic Cost Reduction vs. Ferrosilicon

The most significant advantage of metallurgical SiC is the cost-per-unit of Silicon. By replacing a portion of FeSi with SiC, steel mills can reduce deoxidization costs by 15% to 25% without compromising the final grade’s integrity.

2. Exothermic Energy Boost

The oxidation of Silicon Carbide is a highly exothermic reaction (SiC + 2O →SiO2 + C + Heat). This reaction raises the temperature of the molten steel, allowing for lower electricity consumption and faster tap-to-tap times.

3. Superior Slag Conditioning

Our SiC 88% helps in forming a more fluid, reactive slag. It reduces the FeO content in the slag more effectively than aluminum or ferrosilicon, leading to improved alloy recovery rates and cleaner steel.

Applications Across the Industry

• Converter (BOF) & Electric Arc Furnace (EAF): Used as a powerful deoxidizer and temperature riser.

• Grey & Ductile Iron Foundries: Acts as a potent inoculant and silicon source, improving the graphite distribution in castings.

• Refractory Base Materials: The high hardness and thermal shock resistance make low-grade SiC ideal for kiln furniture and lining materials.

Why Partner With Us?

With over 30 years of expertise in the ferroalloy sector, ZhenAn ensures that every batch of Silicon Carbide undergoes rigorous chemical analysis. We don’t just ship products; we provide technical solutions. Our team can help you calculate the exact substitution ratio to maximize your furnace efficiency.
For high-strength low-alloy (HSLA) steel, the low nitrogen and sulfur levels in our Met-SiC ensure superior weldability and toughness compared to lower-quality scrap-based additives.