High Density Tungsten Alloy
Materials
high-density metals are high strength, machinable, tungsten based materials used where high
density and strength are required.
Typical
Properties
|
T
& D Materials |
HM |
HM |
HM1100
90% W |
HM1150
92.5% W |
HM1250
93% W |
HM3000
95% W |
HM3050
95% W |
HM3750
97% W |
|
AMS-T-21014
SAE Aero, Material Spec. |
Class
1 |
Class
1 |
Class
2 — Class 2 |
Super
|
Class
3 — Class 3 |
Class
3 — Class 3 |
Class
4 — Class 4 |
|
|
Density
Gms/cc |
17 |
17 |
17.5 |
17.7 |
18 |
18 |
18.5 |
|
|
Hardness
Rockwell C |
24 |
25 |
26 |
30 |
27 |
27 |
28 |
|
|
Ultimate
Tensile |
110,000 |
125,000 |
114,000 |
130,000 |
115,000 |
125,000 |
128,000 |
|
|
Yield
Strength |
90,000 |
88,000 |
90,000 |
90,000 |
85,000 |
90,000 |
85,000 |
|
|
Elongation
(% in |
8 |
14 |
12 |
10 |
7 |
12 |
10 |
|
|
Proportional
Elastic |
45,000 |
52,000 |
46,000 |
60,000 |
45,000 |
44,000 |
45,000 |
|
|
Modules
of |
40
x 106 |
45
x 106 |
47
x 106 |
53
x 106 |
45
x 106 |
50
x 106 |
53
x 106 |
|
|
Coefficient
of Thermal Expansion |
5.4 |
4.8 |
4.6 |
4.5 |
4.4 |
4.6 |
4.5 |
|
|
Thermal
Conductivity |
.23 |
.18 |
.20 |
.27 |
.33 |
.26 |
.30 |
|
|
Electrical
Conductivity |
14 |
10 |
13 |
14 |
16 |
13 |
17 |
|
|
Magnetic
Properties |
HD
17 = NIL |
Slightly |
Slightly |
Slightly |
NIL |
Slightly |
Slightly |
|
*Properties may
vary according to size and shape of part.
Composition shown is typical and may change for manufacturing purposes or to
meet physical and/or application requirements. If non-magnetic material is
required, it should be specified.
High Density
Radiation
Shielding - Weights and Counterbalances - Boring Bars – Crankshafts - Ordnance
What are tungsten alloys used for?
- Medical applications for
shielding & collimators
- Counterbalance
weights
- Vibration dampening
- Gyroscopes
- Ballistics
- Darts
Because of the
physical properties of T & D Materials' high density metal, it is often
used as both a weight and a structural member.
Radiation Shielding
Our tungsten
alloys are used for radioactive source containers, gamma radiography, shields,
and source holders for oil-well, logging, and industrial instrumentation. You
can use our alloys for collimators and shielding in cancer therapy machines,
and as syringe protection for radioactive injections.
There is no
licensing required for tungsten alloy materials. Tungsten alloys are stable at
high temperatures. You can use one-third less material than lead for the same
energy-absorbing effectiveness.
You can use our
high density tungsten alloys wherever radioactivity has to be controlled and
directed.
Weights and
Counterbalances
T & D Materials' tungsten alloys
are used for
- Aircraft control surfaces and
rotor blades
- Guidance platforms
- Balancing of fly wheels and
turbines
- Vibration dampening governors
- Fuse masses
- Weights for self-winding
watches
Our high density
tungsten alloy is often used as both a weight and structural member because of
its physical properties.
Boring Bars and
Grinding Quills
Chatter Free™
and Super Chatter Free™ are the standards for vibration-free machining and
grinding. They're used when rigidity and minimal vibration are crucial. Chatter
Free means heavier cuts, longer tool life, and better finish. Tool extensions of
up to 9:1 are possible, depending on the diameter. Tools run cooler because of
the high thermal conductivity, and you can braze directly to material without
affecting its physical properties.
These materials
are often used in place of tungsten carbide boring bars because they have a
higher density, are readily machinable, less prone to
chipping and breakage, and both material and finishing costs are less.
Crankshaft
Balancing
Tungsten is used
extensively to balance crankshafts in high-performance engines. Individual
weights are stocked. See our weight chart for formulas and information to solve
balancing problems.
Rotating
Inertia Members
Use our metal
for gyro rotors, fly wheels, and rotating members for governors. Because of its
unique physical properties, tungsten lends itself to excellent rotating inertia
members.
Ordnance
Components
Hyper-velocity
armor-penetrating applications use our materials in spheres, cubes, and
projectile shapes. Manufacturing techniques and additives allow us to vary
properties such as elongation, ultimate tensile strength, and hardness to meet
your needs.
Tungsten alloy fishing sinkers specification
|
Model No |
Photo |
Weight(gram) |
Outer side diameter(mm) |
|
A |
|
1.770 |
5.1 |
|
3.540 |
5.6 |
||
|
5.310 |
6.5 |
||
|
7.080 |
6.5 |
||
|
8.850 |
7.3 |
||
|
10.63 |
7.5 |
||
|
14.17 |
8.9 |
||
|
21.26 |
10.0 |
||
|
28.34 |
10.5 |
||
|
B |
|
7 |
9.1 |
|
9.1 |
12.5*10.4*8.0 |
||
|
10.3
|
15.8*dia8.9 |
||
|
C |
|
0.303 |
3.0 |
|
0.665 |
4.0 |
||
|
1.26 |
5.0 |
||
|
2.166 |
6.0 |
||
|
D |
|
0.206 |
2.2
|
|
0.326 |
2.6 |
||
|
0.533 |
3.2 |
||
|
1.207 |
4.0 |
||
|
1.952 |
5.0 |
||
|
3.3 |
6.0 |
||
|
E |
|
0.242 |
2.5 |
|
0.475 |
3.0 |
||
|
0.712 |
3.5 |
||
|
1.068 |
4.0 |
||
|
1.477 |
4.5 |
||
|
1.997 |
5.0 |
||
|
F |
|
0.03 |
1.5 |
|
0.07 |
2 |
||
|
0.11 |
2.3 |
||
|
0.21 |
2.8 |
||
|
0.34 |
3.3 |
||
|
G |
|
0.0316 |
1.5 |
|
0.0682 |
2 |
||
|
0.2127 |
2.8 |
||
|
0.3350 |
3.3 |
||
|
0.5321 |
3.8 |
||
|
0.8871 |
4.6 |
||
|
1.5341 |
5.5 |
||
|
H |
|
0.825 |
Dia5*5 |
|
1.49 |
Dia6*6 |
||
|
0.72 |
Dia5*4 |
||
|
1.157 |
Dia6*5 |
Note: Not all
sizes are included in above table. More shapes and sizes are on developping. Customized size are
available on request. Normal material is 96WNiCu(96%
is W, balance is Ni and Cu). Density 14
We are
specialized metal injection molding product based in
Some people even
call our product: cemented carbide sinker, tungsten pin fishing sinker,
tungsten half drop with hole, tungsten fishing sinker, tungsten banana with
groove, tungsten alloy ball sinker, tungsten jig, tungsten pagoda pin fishing,
drop sinker with groove, drop sinker with hole, half drop sinker with groove,
tungsten rod with hole, tungsten fish spoon, tungsten fish head sinker,
none-toxic Tungsten high-density, tungsten alloy ball, tungsten carbide ring,
tungsten fishing weight, chinese Mormyshka,
Chinese Mormishka, Chinese Marmooska,
Russia Mormyshka, Russia Mormishka,
Russia Marmooska, ice fishing, tungsten Mormyshka, tungsten Mormishka,
tungsten Marmooska, Tungsten Droplet, tungsten facet,
Tungsten Maggot. If you found what you need here, please contact us.
Tungsten ball Size:
Bead Colors
We have created
many patterns of tungsten bead and brass bead with hole
drilled fly fishing bead and are continuing creating many new models upon
customers' requirement. The materials we are supplying are tungsten(model
G-with counter hole and F with slotted hole) and brass(model G). These are most
popular, if you have requirement more than stated, please inform us freely. Due
to difference workers mixing colors, different paint supply sources, our
painting can not be absolutely same between our product
to market product, different batches. Our workers are skilled in mixing colors,
if you have your own design, please be free to show your sample. We are honoured to bring value to our customer by our continuous
improvement.
Normal tungsten
bead and solid brass bead with hole drilled size(mm):
1.5, 2.3, 2.7, 3.2, 3.8, 4.6, 5.5, 6.4 or 2, 2.5, 3, 3.5, 4, 4.6
More sizes are available on request
ALL GALVANIC COATING TARNISH
FREE!!!!
ALL PAINTINGS ARE
DURABLE!!!!!
|
gold coating (better) |
Sterling silver |
Black nickel |
Copper |
|
|
|
|
|
|
without finish |
Red
(dark) |
old |
Hot pink (fluo) |
|
|
|
|
|
|
Light Pink (fluo) |
Fluo white
(left ones) |
Chartreuse |
Pearl white |
|
|
|
|
|
|
Black paint |
Glowing |
Green 1 |
Green 2 |
|
|
|
|
|
|
Pink 3(or purple) |
Yellow (fluo) |
blue (fluo) |
brite red |
|
|
|
|
coming soon |
Tungsten Mormishka
and beads
|
picture |
Comment |
|
|
It is called mormishka and used in ice fishing. We have already
created many models but not all model listed here for some reason. We have 2
years experience in producing this kind of product and know how to make good
product. |
|
|
tungsten fly fishing Bead Head Nymphs used in fly fishing(for flytying factory). Some people even use copper or brass
bead because it is cheaper. But tungsten has advantage on density, (the
density is more than 18, brass is 8.5, lead is 12 but lead is poisonous).
With 2 years work on it, we know how to control quality and satisfy our
customer. |
If you have your own design on shape, we can produce on request. Right now, not only tungsten bead but also brass bead available
from us.
We think we are the best one in
The
lowdown on bead heads (excerpted from ESPN outdoors) written by Jason Akl
To start to understand the importance of bead heads in fly
patterns a quick look at the different type of beads used in fly patterns is a
necessity.
Brass beads were specifically designed to add additional weight to fly patterns
to help them get down deep, fast.
If you take a quick look into your fly box, what do you see? Do you have
barrage of gold bead head nymph patterns lining your fly box or a run of the
traditional weighted nymphs? In most cases, anglers probably carry a few of
each and really never understand when, where, and why they should use one over
the other. Bead head nymph patterns in recent years have come to the forefront
in number of fish they fool all around the world. Fly anglers from north to
south bet on the fact that if it swims in a river and is part of the trout or
char family then can be caught on a bead head fly pattern.
To start to understand the importance of bead heads in fly patterns a quick
look at the different type of beads used in fly patterns is a necessity:
1. Standard Drilled Gold/ Silver/ Nickel beads - These beads are the standard
in the industry and have been worked into almost every famous bead head pattern
available on the market. These beads are made exclusively for fly tiers using a
"duel-diameter" hole. One small and one large bored-out hole to help
slide easily around the hook bend and fit snuggly behind the hook eye. These
beads are plated to resist tarnishing and provide flash even in the most
stained of waters.
2. Coneheads -- These special brass bullet-shaped
weights offer an exciting new way to weight flies. Instead of the traditional
round shape, when using coneheads you are able to
change the shape and profile of fly patterns.
3. Tungsten faceted Beads -- These unique products are relatively new to the
market and weigh more than the traditional brass beads of equal size. The
faceted face design helps reflect light in an irregular fashion.
4. Glass Beads -- Glass beads do not have the weight as compared to their metal
counterparts, but add significant flash and color to nymph and wet fly
patterns. Having a little lighter weight to these beads allow them to be
incorporated in patterns that swim or get swung throughout the water column.
As winters grip lets loose over the landscape and the waters slowly warm, fish
start to feed and do so ravenously. During these peak times the water's
conditions are usually running fast and high, making getting flies down to fish
difficult. There are many ways to get flies down to fish such as weighted lines
and split shot on leaders, but the simplest answer to this problem is weight
flies.
Brass beads were specifically designed to add additional weight to fly patterns
to help them get down deep, fast. If you are crafty enough to tie your own
flies, weighting the body of the hook shank with lead-free weight is a good
start but will not always add enough weight to the hook shank to have the fly
sink down to the bottom.
On standard bead heads there is one small and one large bored-out hole to help
to slide it easily around the hook bend and fit snuggly behind the hook eye.
Although weighting the hook shank of a fly does make the fly heavier weighting
the fly at its head region does more than just add weight. Forward loading a
fly pattern like this serves two purposes. First off, to get the fly down deep;
but secondly, to get the fly to sink head first. Having a pattern drop to the
bottom head first will allow the fly to sink faster due to the fact that the
fly is cutting through the current (the least amount of surface area
perpendicular to the current). Coneheads are
especially good for getting flies down to the bottom fast, seeing as the weight
is more than traditional drilled beads. The specific cone head shape has an
additional advantage, with its narrow front and wider rear the fly tends to
become more weed-less bouncing off rocks and snags.
Furthermore, having a fly plunging towards the bottom head first more
accurately imitates a swimming aquatic insect. Think to yourself, other than
crayfish how many aquatic insects can you remember swimming backwards?
Lastly, the addition of weight to the forward section of flies will allow them
to act as if they were a jig in the water with movement made to the fly line.
Fly anglers cast these weight flies towards their target, allow them to sink
and then will repeated short strips of line hop the beadhead
fly along the bottom enticing fish.
Another major advantage of having bead heads incorporated into your favorite
fly patterns is that they provide an element of flash to fly patterns by
reflecting sunlight that has penetrated the water's surface. A trout's diet
naturally consists of approximately 90 percent aquatic insects so anything that
you can do to your favorite nymph pattern to help get the trout's attention
will pay big dividends. When fishing bead head nymph anglers need to understand
how fast a fly is going to sink. Experimenting with leader lengths and
different sizes and types of beads will be needed to understand how fast the
flies will sink. Using the countdown method after the cast will accurately let
the fly angler know what level of the water column he or she is fishing. In
most cases when presenting flies to fishing holding in deep holes the smaller
more aggressive fish will strike the fly closer to the surface. Getting the fly
down deep and rolling it along the bottom will improve your chances of hooking
the real lunker in the hole.
One word of caution to fly anglers excited about getting out and using a bead
head nymph this upcoming season is that the heavier the fly the harder it is to
cast. A good idea is to shorten your leader when using beaded flies. A heavy
leader, especially thick in the butt section will assist in casting, keeping
the fly rolling smoothly above the level of your head. Moreover; picking the
line off the water in a long horizontal plane and then casting forward at a
vertical plane will not only help your casting, but also prevent the bead fly
from coming into contact with your fly rod tip. Clipping the tip with a
weighted fly will weaken or break the tip section.
As much as anglers love to see fish come up to the surface and explode on dry
fly patterns, the chance to catch the real lunker in
the rivers comes from drifting flies on bottom where these secretive giants
lay. Adding bead heads to flies is a simple way to allow patterns to reach the
fish's strike zone quickly and effectively plus the flash helps to get
lethargic fish to take notice of what you're offering. Incorporating bead heads
into your fly arsenal will take the guessing out of your next fly fishing adventure,
while giving yourself the chance of landing that trophy fish of a lifetime.
