It is a vital process for steel production. It removes sulfur from molten steel, and makes it better in quality and utility. The boss has many features. For in enhancing ductility (a material's ability to elongate when loaded), toughness and weldability, it makes steel tougher. It does away with quenching brittleness, preventing hot short, a defect whereby cracks form during hot working. Technological features of the process include the use of various agents, such as calcium or magnesium, which combine with sulfur to form sulfides that can be removed. These agents are injected into the molten steel or fed in powder or slag form. Used the world over in countless industries, from construction to automobile manufacture and shipbuilding to machinery making, high-quality steel is called for.