Drawn Steel Wire

Steel materials , welded steel structures or cold formed parts tend to possess internal stresses caused mainly during their manufacture and uneven cooling. This internal stress causes brittleness at isolated locations in the steel materials, which can lead to sudden breakage or failure of the material. Stress relief annealing process is used to ensure there is reduced risk of distortion of the work piece during machining, welding, or further heat treatment cycles. This process involves heating the steel materials to a temperature of around 600 – 650 deg C. The temperature is maintained constantly for one to three hours and then the steel materials are allowed to cool down slowly in still air.