Temper (Met.)
The state of or condition of a metal as to its hardness or toughness produced by either thermal treatment or heat treatment and quench or cold working or a combination of same in order to bring the metal to its specified consistency. Each branch of the metal producing industry has developed its own system of temper designations. In flat-rolled products including sheet and strip steel, tin mill products, stainless strip, aluminum sheet and copper base alloy strip they are shown as follows
