Ultimate tensile strength (UTS) is the maximum amount of tensile stress that a material can withstand before failure. It is a critical property in materials science, indicating how much force a material can endure while being stretched or pulled. UTS is typically measured in units like megapascals (MPa) or pounds per square inch (psi). Testing for UTS involves applying a tensile load to a sample until it breaks. This process helps engineers and designers select appropriate materials for various applications, ensuring safety and performance. Understanding UTS is essential for materials like steel, aluminum, and plastics used in construction and manufacturing.