ANNEALING
USED TO MAKE STEEL SOFT & DUCTILE BY HEATING A METAL TO TEMPERATURE ABOVE CRITICAL TEMPERATURE FOR A PERIOD FOLLOWED BY COOLING @ SUITABLE RATE ACCORDING TO THE PURPOSE
USED TO MAKE STEEL SOFT & DUCTILE BY HEATING A METAL TO TEMPERATURE ABOVE CRITICAL TEMPERATURE FOR A PERIOD FOLLOWED BY COOLING @ SUITABLE RATE ACCORDING TO THE PURPOSE