A lead-antimony alloy is a mixture of lead and antimony, typically used to enhance the properties of lead. This alloy is known for its increased hardness and improved resistance to corrosion compared to pure lead. It is commonly utilized in applications such as batteries, soldering, and radiation shielding. The addition of antimony to lead also helps to reduce the alloy's susceptibility to deformation under stress. This makes lead-antimony alloys particularly useful in manufacturing items that require durability and strength, such as ammunition and electrical contacts.