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
(See Degassing Process)
(Chemical Symbol V) - Element No. 23 of the periodic system; atomic
weight 50.95. Gray-white, hard metal, unaffected by atmospheric
influences or alkalies but soluble in most strong acids; melting
point 31190°F.; boiling point about 61500°F.; specific
gravity 5.87. It cannot be electrodeposited. Its principal functions
as an alloy in the making of tool steels. (1) Elevates coarsening
temperature of austenite ( promotes fine grain). (2) Increases
hardenability (when dissolved). (3) Resists tempering and causes
marked secondary hardening.
(See Oscillated Wound Coils)
Hardened, temper and white polished extra precision rolled. Carbon
content about 1.00%. Steel must withstand great fatigue stresses.
Standard method for measuring the hardness of metals, particularly
those with extremely hard surfaces: the surface is subjected to
a standard pressure for a standard length of time by means of a
pyramid-shaped diamond. The diagonal of the resulting indention
is measured under a microscope and the Vickers Hardness value read
from a conversion table.
Metal obtained directly from ore and not used before.