Low-Carbon Ferrochrome: Production Methods and Industrial Applications

Ferrochrome is produced by smelting a mixture of chromite ore and iron in an electric arc furnace. Widely utilized in the casting and steel industries, ferrochrome is an essential material for manufacturing low-carbon structural steel, chromium-containing steel, and alloy structural steel.

Types of Ferrochrome Based on Carbon Content

Ferrochrome is classified according to its carbon content, which determines its specific applications:

• High-Carbon Ferrochrome

• Medium-Carbon Ferrochrome

• Low-Carbon Ferrochrome

• Micro-Carbon Ferrochrome

What is Low-Carbon Ferrochrome?

Low-carbon ferrochrome is a variety of ferrochrome with a carbon content below 0.50%. The raw materials required for producing low-carbon ferrochrome include silicon-chrome alloys, chromite, limestone, and other metallurgical materials. This alloy is widely used across various industries, especially as an additive in stainless steel and special steel production. Its primary function is to enhance the steel’s oxidation and corrosion resistance, making it indispensable in high-performance steel applications.

Smelting Methods for Low-Carbon Ferrochrome

There are currently two primary methods for smelting low-carbon ferrochrome:

1. Refining High-Carbon Ferrochrome: This involves refining high-carbon ferrochrome to reduce its carbon content.

2. Electrosilicon-Thermal Method: This process uses silicon as a reductant to smelt low-carbon ferrochrome.

Both methods are widely employed, with the choice of method depending on production requirements and desired alloy characteristics.