Aluminum Manganese Calcium Alloy, also known as AlMnCa alloy, is an alloy primarily composed of aluminum, manganese, and calcium, with trace amounts of other elements. It is commonly used as a deoxidizer and desulfurizer in the steelmaking process, as well as a modifier of non-metallic inclusions. The addition of AlMnCa to steel can enhance its strength, ductility, and overall quality, while reducing the risk of cracking during solidification. This alloy is also employed in the production of aluminum alloys to improve their casting properties and mechanical characteristics, such as tensile strength and elongation. Additionally, AlMnCa alloy can be utilized as a grain refiner in aluminum casting alloys to improve their mechanical properties and castability.