Direct Reduced Iron (DRI)

Category: science

A solid-state iron product produced by reducing raw iron ore using natural gas or hydrogen syngas without melting the material.

Also referred to as "sponge iron," DRI is an eco-friendly alternative to blast furnace pig iron. Because the process operates below the melting point of iron, it avoids the intensive coke-burning step, dropping carbon emissions significantly. The resulting highly porous DRI pellets are perfectly suited for immediate melting inside electric arc furnaces (EAF) to produce high-grade specialty steel alloys.

Common Examples

• The steel group expanded its regional infrastructure by integrating a direct reduced iron plant powered entirely by local natural gas lines.
• Direct reduced iron requires specialized handling during transport because its highly porous structure makes it prone to rapid oxidation and spontaneous heating.