TUNGSTEN TECHNOLOGY
6
Tungsten has been used
since the 1970ʼs for the production
of darts, because it is twice as dense
(heavy) as brass. A dart made of
tungsten will be half the size of its brass
equivalent. This means that it is easier
for the player to achieve close grouping
and score the maximum 180! Tommy O’Regan (right) was the first Champion to use Tungsten and
he was also Harrows first sponsored professional player.
15% NICKEL
3% IRON
2% ZINC
HOW WE MAKE
TUNGSTEN DARTS
Sintered
tungsten
billets are
cut to size,
then “drilled
and tapped”.
TUNGSTEN TECHNOLOGY
80%
TUNGSTEN
Tungsten is found
in igneous rock. It
is then crushed to
powder and the
tungsten content
is separated
Pure Tungsten
powder ready to
be sintered with
nickel in a furnace
at 3000ºC.
100% Tungsten is very
brittle. As a result it
is necessary to create
an alloy by combining
the tungsten powder
with iron, nickel,
and zinc.
High technology
machinery turns
a billet into a
dart barrel
The atomic
structure
of brass
shows a lot
of space
between
molecules
TUNGSTEN VS BRASS DARTS
These darts both weigh 22 grams. Tungsten being volumetrically
half the size of brass, it makes it a lot easier
for the player to achieve close “grouping” and high
scores.
TUNGSTEN DATA
1) The element was discovered in 1783 by the
Spaniards Jose & Fausto Elhuyar.
2) Tungsten can be found in Austria, Bolivia, California,
China, Colorado, Portugal, Russia and
South Korea.
3) Tungsten means “heavy stone” in Swedish.
4) It is found in several ores, including Wolframite
and Scheelite.
5) Tungsten has many applications including: carbide
tooling, light bulb filaments, electrodes,
turbine blades, kinetic energy penetrators,
weights and radiation shields. It can also be
used for strengthening steel.
6) Tungsten has the highest melting point of all
metals - 3,422 degrees C.
Atomic
structure of
Tungsten illustrates
how
dense this
metal is.
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