alumiiniteräksen

Alumiiniteräs, often referred to as aluminum-killed steel, is a type of steel that has undergone a specific deoxidation process during its production. This process involves adding aluminum to the molten steel before casting. Aluminum acts as a strong deoxidizer, reacting with dissolved oxygen to form aluminum oxide (Al2O3). This oxide then floats to the surface of the molten steel as slag, effectively removing oxygen from the metal.

The primary benefit of this aluminum addition is the control it exerts over the steel's final microstructure, particularly in preventing the formation of harmful internal voids or "blowholes" during solidification. Without proper deoxidation, dissolved gases like oxygen and nitrogen can form bubbles within the steel, leading to reduced mechanical properties and surface defects. Alumiiniteräs solidifies more uniformly, resulting in a cleaner, more homogeneous structure.

This refined structure contributes to improved ductility, toughness, and surface finish of the steel. Alumiiniteräs is widely used in applications where high-quality steel is essential, such as in the production of automotive body panels, structural components, and various high-performance steel products. The controlled solidification achieved through aluminum deoxidation makes it a reliable material for demanding engineering uses.