What Is Killed Steel?

Killed Steel

Killed steel is a type of steel that has been fully deoxidized during the steelmaking process by adding elements like aluminum, silicon, and manganese. This eliminates oxygen bubbles in molten steel, preventing gas porosity and resulting in more uniform composition and improved structural integrity. Because of its consistent quality and lack of gas-related defects, killed steel is ideal for critical applications such as pressure vessels, pipelines, and structural components where reliability and strength are essential.