The term yield strength refers to a material's ability to endure significant bending or twisting and return to its original shape without deforming. Spring steel alloys feature the unique characteristic of being able to withstand considerable twisting or bending forces without any distortion. Products made from these steel alloys can be bent, compressed, extended, or twisted continuously, and they will return to their original shape without suffering any deformation. It is a common material used for manufacturing objects like springs, helical springs, tape measures, washers, saw blades, lock picks, antennas, and scrapers. It's also commonly used to create lawnmower parts, the landing gear of small aircrafts, and vehicle coil springs.