A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(A) In low carbon cold-rolled strip steel, a medium soft temper
produced by a limited amount of cold rolling after annealing. (B)
In brass mill terminology. Quarter-Hard is one B and S number hard
or 10.95% reduction. (C) In stainless steel terminology tempers
are based on minimum tensile, or yield strength. For Chromium-Nickel
grades Quarter Hard Temper is 125,000 T.S., 75,000 Y.S. min.
In the heat treating of metals, the step of cooling metals rapidly
in order to obtain desired properties; most commonly accomplished
by immersing the metal in oil or water. In the case of most copper
base alloys, quenching has no effect other than to hasten cooling.
(Steel) - A process of hardening a ferrous alloy of suitable composition
by heating within or above the transformation range and cooling
at a rate sufficient to increase the hardness substantially. The
process usually involves the formation of martensite.