Stress Equalizing Annealing
Heating and coolingto low temperatures to homogenize stresses so as to afford the best possible combination of ductility and strength. For metal alloys this partial recovery process increases yield strength significantly, with slight increases in tensile strength and hardness, but little change in percent elongation. Stress equalizing, which is often applied to coil springs and wire forms in their finished shape, is a common practice in many wire-manufacturing operations.