The importance of tempering forged metal cannot be overemphasized. You see, forging is a process by which a bar or strip of steel or other materials are heated and then cooled to create a desired shape. While the application of heat and cooling only affect the surface of the bar/strip, when done correctly, all portions of it will have been tempered by the time they reach their final shape
Tempering is an essential part of forging because without it you would have a piece that could break with little force, or even crack if you were to bend it. Tempering means that your piece has been treated to make it more flexible so that it can withstand more pressure during assembly or use. This also makes your forged piece easier to work with as well as providing additional strength beyond what steel alone would provide.
how to temper forged metal