Tungsten Information

99.95% Tungsten Bar

Published on 28 September 2014

Grade:W-1

Purity: W≥99.95%

Appearance: Shine with grey or dark grey metallic luster.

Application: Mainly used to found ingredient of material, cutter and heads, conductor of heat,as the material and additive, crankshaft and cylinder barrel of advanced automobile, ingredient of kinds of heat-resistent steel and electrode, mainly used to guns, artillery,rockets, satellite,airplane and ship.

High purity tungsten bar specification (%)

Main Comp.W≥99.95
Other Content≤	Fe	0.005	Al	0.002	Si	0.003	Mg	0.002
	Ca	0.003	Ni	0.003	O	0.003	C	0.005
	P	0.001	N	0.003	Pb	0.0001	Bi	0.0001
	Sn	0.0001	Sb	0.001	As	0.002	Mo	0.01

99.95 tungsten-bar

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Bulk Tungsten Bullet Weight

Category: Tungsten Information

Published on 28 September 2014

Bulk tungsten bullet weight feature for 95% tungsten compositions and premium polished finishes helping keep your line from fraying or breaking.

Far more compact and streamlined than their lead, brass or stainless steel counterparts, the bullet weights have a much higher density and hardness thanks to their 95% tungsten composition. The added hardness also translates into increased sensitivity, and allows you to distinguish between every rock, stick and pebble your weight comes in contact with. The bulk tungsten bullet weight are now available in multiple colors to create more realistic presentations.

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Rhenium Tungsten Bar Introduction

Category: Tungsten Information

Published on 26 September 2014

Rhenium resembles manganese chemically and is obtained as a by-product of molybdenum and copper ore's extraction and refinement. Rhenium shows in its compounds a wide variety of oxidation states ranging from 1 to +7.Nickel-based superalloys of rhenium are used in the combustion chambers, turbine blades, and exhaust nozzles of jet engines, these alloys contain up to 6% rhenium, making jet engine construction the largest single use for the element, with the chemical industry's catalytic uses being next-most important.

Because of the low availability relative to demand, rhenium is among the most expensive of metals, with an average price of approximately US$4,575 per kilogram (US$142.30 per troy ounce) as of August 2011; it is also of critical strategic military importance, for its use in high performance military jet and rocket engines.

Rhenium Tungsten Bar Description:

Material:Rhenium-Tungsten

Shape:bar

Surface: grinding, cleaning, forging

Purity: >99.50%

Application:used to make artillery rockets, satellite airplane

Rhenium-tungsten-rod

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Tungsten Forging Rod Introduction

Category: Tungsten Information

Published on 26 September 2014

Most of tungsten rods are rolled, or forged. After rolled, or forged, we will machine them, ground them or polish them according to customers' requirements.

Thickness	Thickness tolerance	Width	Width tolerance	Lenght	Length tolerance
0.2	±0.02	10~150	±0.5	500	±2
0.3	±0.03	10~250	±0.5	500	±2
0.4	±0.04	10~250	±0.5	500	±2
0.5	±0.05	10~300	±1	500	±2
0.8	±0.07	10~300	±1	500	±2
1.0	±0.08	10~300	±1	600	±2
1.5	±0.12	10~400	±2	600	±2
2.0	±0.12	10~500	±2	700	±2
3.0	±0.20	10~500	±2	600	±2

tungsten rod

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tungsten Bar Features

Category: Tungsten Information

Published on 26 September 2014

Tungsten bar has excellent properties including good electrical conductivity, low thermal expansion coefficient and high corrosion resistance, etc. All unalloyed tungsten bar is produced by powder-metallurgy methods. Comparing with molybdenum bar, tungsten bar has higher strength at temperatures above 2,000°F. The elastic modulus of tungsten is about 25% higher than that of molybdenum. What's more, the density of tungsten bar is almost twice as much as that of molybdenum bar.

Tungsten bars with impurities are used to procedure bulb filaments or electron tube filaments, which are guaranteed to have remarkable resistance to high temperature for making special steel, tungsten wire and electric contact point. They are also applied in crankshaft, cylinder burdening and electrodes for advanced automobiles. Besides, the bars are also produced as components for manufacturing of guns, artillery, rockets, satellites, aircrafts and ships.

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Polished Tungsten Rod Introduction

Category: Tungsten Information

Published on 26 September 2014

Polished tungsten rods have the highest melting point of all metals and is therefore also suitable for very high-temperature applications. It is also characterized by a uniquely low coefficient of thermal expansion and a very high level of dimensional stability.

Surface: Black and polished

Purity: ≥ 99.95%

Density: ≥ 19.2g/cm3,

Surface roughness: < 1.6

Dia: 2.5-120mm

Standard: ASTM

Application:

Used in the manufacturing of electric light source and electric vacuum parts and get an electric shock materials.

Used as a means of high temperature and high temperature structure parts.

In the rare earth industry used as electrode.

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Tungsten Bullet Weights

Category: Tungsten Information

Published on 26 September 2014

Tungsten worm weights also called tungsten bullet weights are widely used because of the high mass while small volume,which owing to the main composition,tungsten .

Tungsten bullet weights,just as the name implies,are one type of fishing weights with bullet shape,which resulting in better penetration power.Tungsten,with the high density,about 20 percent higher than lead,is highly appreciated by fishermen.Moreover,tungsten bullet weights are environment friendly,so they are good alternative to lead weights which labeled as hazard to the environment.

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Tungsten Bar in Steel Making

Category: Tungsten Information

Published on 25 September 2014

Tungsten bar is most widely used in steel making. In the steel making industry, tungsten bar is usually applied as an additive. The purity is at least 99.93% according to Chinese Standard. There are four grades of tungsten bar, which ranging from W-1 to W-4.Steel making tungsten bar is also used as found ingredient of material, cutter and heads, tungsten wire for lights instruments, electric contact points and conductor of heat, crankshaft and cylinder barrel of advanced automobile, ingredient of kinds of heat-resistant steel.

Mainly used for foundry materials tool bit of processing lathe, and conductors, steel-making burdening and additives crankshaft and cylinder burdening and electrodes for advanced automobiles for the manufacture of guns, artillery, rockets, satellites, aircrafts and ships.

Tungsten bars are also used for making special steels, to make guns, artillery rockets, satellite airplane and ship. It has a luster rather like that of silver in uniform color. Though the whole bar may slightly curve, the maximum height of the bend should not be more than 7mm.

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Ground Forged Tungsten Bar Introduction

Category: Tungsten Information

Published on 25 September 2014

Ground forged tungsten bar is tungsten bar manufactured through the process of forging and finished by grounding. Tungsten bar is normally recognized as round and rectangle shape. Here is to show the rectangle tungsten bar, with the bright, smooth and ground surface. The purity of tungsten bar is over 99.95% and the density is over 19.0g/cm3. The surface roughness is Ra3.2um. Ground forged tungsten bar can be used for manufacturing tungsten sheet or tungsten plate. More detail, please visit ground forged tungsten bar.

What are tungsten bar and its application? Tungsten bar includes tungsten rod, tungsten steel bar, tungsten sintered bars and more.

Ground tungsten bar is mainly used to found ingredient of material, cutter and head, tungsten wire for lights instruments, electric contact points and conductor of heat, crankshaft and cylinder barrel of advanced automobile, ingredient of kinds of heat-resistant steel.The process of grounding is centerless ground the surface to remove all coating and to achieve precise dimension control.

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Tungsten Rod Categories

Category: Tungsten Information

Published on 25 September 2014

Tungsten rod can be divided into two categories: one is for finished tungsten rod bar. The other is for drawing wire semi-finished rough rod material. It has two processing ways: spinning machining and holes rolled. We own exquisite machining techniques. The tungsten rod bar we produce has good characteristics of extremely strong electrodes, high temperature of oxidation resistance, long service life and corrosion resistance.

Tungsten rod can be made into tungsten wire. Due to the big hardness of tungsten, small mechanical abrasion and refractoriness, so tungsten material is widely used for electric connected touch for mobile motor distributor, voltage regulator of automobile engine and electric system. In addition, tungsten rod bar can be supplied for electrodes, electric tube bars, side bar, quoted line, gas lamp electrodes, high efficient incandescent filament, filament tube, launched tube cathode, senior automotive crankshafts and so on.

Swaged Tungsten Rod

Swaged tungsten rod is made through constant swaging. After centerless grinding, surface diameter’s completeness and accuracy have improved. They can be machined into various shapes, but the most common shape is cylinder. The tensile strength of tungsten rod bar has promoted 1050MPa to 1200Mpa after swaged. Swaged tungsten rod bar is made by forging and sintering tungsten block.

Tungsten support rod

Tungsten support rod has a better function as a bearing component in vacuum furnace such as thermal property, mechanical stability, configuration and service life. In the meantime, tungsten support rod can be made into all kinds of styles. Comparatively speaking, tungsten support rod is the best choice for excellent high temperature application. Tungsten support rod has provided superior mechanical properties and tensile strength.

Sintered Tungsten Rod

Sintered tungsten rod bar is always used for vacuum high temperature furnace such as sapphire single crystal furnace. Sintered tungsten rod bar’s density is 18.3 g/cm3. Basically it is close to tungsten theory density. They are high temperature resistance. Sintered tungsten rod bar’s melting points can reach 3380℃. They also have characteristic of creep resistance.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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