What is it called when coal is used to make steel?

When coal is used to make steel, the process is known as "coke production." In this process, coal is heated in the absence of air to produce coke, a porous carbon-rich material. The coke is then used in blast furnaces to reduce iron ore into molten iron, which is subsequently converted into steel. This method is essential in traditional steelmaking, contributing to the material's properties and quality.