Tungsten alloy shot has high density(18.6g/cm3), high hardness and resistance to high temperature. Tungsten alloy shot is the most suitable for shot of shot gun. Armsel Striker used tungsten alloy shot as its shot.

The Armsel Striker — also known as Sentinel Arms Co Striker-12, Protecta, Protecta Bulldog, and Cobray/SWD Street Sweeper — is a revolver 12-gauge shotgun designed for riot control and combat.

The Armsel Striker was created in Rhodesia by Hilton Walker in 1983. Walker moved to South Africa, bringing with him the design for the Striker shotgun. His shotgun became a success, and was exported to various parts of the world. Even though it was successful, the shotgun still had its flaws. The rotary cylinder-type magazine was bulky, had a slow reload time, and the basic action was not without certain flaws.

Tungsten alloy shot has highly improved performance of Armsel Striker.


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Tungsten alloy shot is used as the shot of Saiga-12, for its high density, high hardness and resistance to high temperature.

The SPAS-15 is a dual-mode 12 gauge combat shotgun manufactured by the Italian company Luigi Franchi S.p.A..

SPAS-15 is based on the SPAS-12, and has similar pump-action/semi-automatic firing modes. In semi-automatic mode a gas piston drives a bolt carrier and rotating bolt. In pump-action mode the same components are driven by sliding the fore-end backwards. Pump-action mode is required to reliably fire low-pressure (less lethal) ammunition such as tear gas rounds or less-lethal bean bags. Switching between firing modes is done by pressing a button above the foregrip, and sliding the foregrip slightly forwards or backwards. The barrel is chrome lined and features screw-in choke tubes.

Unlike its predecessor, the SPAS-15 is fed by a detachable box magazine. The gun features a folding stock and a pistol grip safety.

Using tungsten alloy shot, SPAS-15 highly improved execution.


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Tungsten alloy shot is used as the shot of Saiga-12, for its high density, high hardness and resistance to high temperature.

The Saiga-12 is a 12-gauge shotgun available in a wide range of configurations, visually patterned after the Kalashnikov series of assault rifles. Like the Kalashnikov rifle variants, it is a rotating bolt, gas-operated gun that feeds from a box magazine. All Saiga-12 configurations are recognizable as Kalashnikov-pattern guns by the large lever-safety on the right side of the receiver, the optic mounting rail on the left side of the receiver and the large top-mounted dust cover held in place by the rear of the recoil spring assembly.

The Saiga-12 is manufactured by the arms division of Izhmash, in Russia. It was previously imported into the US by European American Armories, although their agreement expired in 2005 and Izhmash then began exporting through the Russian-American Armory Company. The current export import partner is Wolf Performance Arms. Izhmash also manufactures Saiga 20s and Saiga 410s in 20-gauge and .410 bore, as well as the Saiga semi-automatic hunting rifles in a number of centerfire calibers.

Tungsten alloy shot has increased the lethality of Saiga-12, for its high density, high hardness and other properties.


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Tungsten alloy shot is used as the shot for shotgun hunting shells. AA-12 uses tungsten alloy shot as its hunting shot.

AA-12, originally designed and known as the Atchisson Assault Shotgun, is a shotgun developed in 1972 by Maxwell Atchisson. The most prominent feature is reduced recoil. The current 2005 version has been developed over 18 years since the patent was sold to Military Police Systems, Inc. The original design was the basis of several later weapons, including the USAS-12 combat shotgun. AA-12 is fully automatic only but fires at a rate of 300 rounds per minute, making it possible to fire one round at a time with brief trigger pulls. It is fed from either an 8-shell box magazine, or a 20- or 32-shell drum magazine.

Tungsten alloy shot has increased the lethality of AA-12, for its high density, high hardness and other properties.



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Tungsten alloy shot is used as the shot for shotgun hunting shells. Tungsten alloy shot is used as the shot of SPAS-12.

The Franchi SPAS-12 is a combat shotgun manufactured by Italian firearms company Franchi from 1979 to 2000. Only five percent (about 1,850) of the estimated SPAS-12 shotguns manufactured were imported into the U.S. The SPAS-12 is a dual-mode shotgun, adjustable for semi-automatic or pump-action operation. The SPAS-12 has been sold to military and police users worldwide, on the civilian market, and has been featured in films and TV shows.

The appearance and intended purpose of the SPAS-12 initially led to its "combat" designation. Franchi renamed the model the Sporting Purpose Automatic Shotgun in 1990, after the importation ban of 1989 (when it was called the Special Purpose Automatic Shotgun). This allowed continued sales to the U.S. as a limited-magazine-capacity, fixed-stock model until 1994. Following the Federal Assault Weapons Ban, exports to the U.S. ceased. In September 2004 the ban expired, but Franchi had already ended production of the SPAS-12.

Using tungsten alloy shot, the force of SPAS-12 is improved.



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Tungsten-rhenium wire has room and high temperature strength, good ductility after recrystallization, the resistance rate is high, low resistivity, resistant to oxidation and carburization resistance, "water cycle response" capability and welding performance and good.

Tungsten-rhenium wire is powder metallurgy, machining and electrochemical machining pressure as the main technical expertise to wire with different characteristics, Rod, and products for the product, in order to create a single crystal sapphire as the main application areas, it is the tungsten industry system with high technological content and added value of a branch.

Tungsten-Rhenium Wire Introduction

Abbreviation: Tungsten Rhenium Wire for Sapphire
Tungsten-rhenium wire is a kind of tungsten and rhenium alloy composed of different proportions according to wire.

Common models are: W-3Re (rhenium-containing 3%) W-5Re (rhenium containing 5%) W-20Re (rhenium containing 20%) W-25Re (rhenium containing 25%) W-26Re (rhenium containing 26%)
Wherein the model W-25Re (rhenium-25%), 0.5mm diameter tungsten rhenium wire is widely used in the manufacture of single crystal sapphire.


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Rhenium Effect

Often the doped tungsten containing 3 to 5% of rhenium, tungsten rhenium wire is called, it can make an extension of the tungsten-brittle transition temperature drops to or below room temperature. This is a very strange rhenium effect, has not yet found one element can replace rhenium, tungsten produce the same effect.

Tungsten-Rhenium Alloy

Composed of tungsten and rhenium alloys. One for low-rhenium alloy containing less than 5% rhenium; another is a high-rhenium alloys, rhenium is 20% ~ 30%. Its preparation method and tungsten material similar to the main tube and the application of the special color cathode ray tube filament, require high strength and high ductility of the high temperature part, the low-rhenium alloy and a pair of high rhenium alloy can be used to measure the temperature of 1500 ~ 3000 ℃ thermal even. Instead of using the tungsten-rhenium thermocouple platinum-rhodium thermocouple can save precious platinum, rhodium and other metals. Rhenium is also scattered metal, fewer resources, more expensive, if not necessary, should be adopted without rhenium or less plus rhenium tungsten alloy.


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Tungsten-Rhenium Wire Performance Indicators

1Tungsten rhenium wire distribution of rhenium, rhenium content fluctuations within 30.15%;
2 Billet Weight 3Kg;
3To a diameter of 0.39mm, tungsten rhenium wire yield not less than 75%;
4Tungsten rhenium wire filament wire diameter evenly.

Tungsten-rhenium wire Packing: per roll 400-600g, per kilogram of 250m-260m. Vacuum packaging, coat cartons, bags.

Tungsten-rhenium wire Uses: used for color picture tubes hot wire, a variety of tube filament and gates.

1 Production of special requirements for filament, heat-sensitive components chromatography;
2 Heating wire is used for the manufacture of tubes and heating and TV camera tube;
3 For military electronic equipment.


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Once the use of tungsten at high temperature after recrystallization becomes very brittle and subject to shock or vibration in the case of easily broken. Some require high reliability in electric light source products, in order to prevent breakage of the filament, usually by adding rhenium doped tungsten, tungsten-rhenium wire known, rhenium alloy containing 1% to 5% (mass), in addition to mixed into the silicon, aluminum, potassium, to improve the high temperature properties of the material. It can make an extension of the tungsten-brittle transition temperature drops to or below room temperature.

Tungsten-Rhenium Wire Advantages

With room and high temperature strength, good ductility after recrystallization, the resistance rate is high, low resistivity, resistant to oxidation and carbonization, anti-"water cycle response" capability and welding performance and good.

Tungsten-Rhenium Wire Specifications: There WAl-1Re, WAl-3Re and WAl-5Re three kinds of grades

Tungsten-rhenium wire in addition, 25% Re and 26% Re two tungsten-rhenium alloy frequently used, mainly for thermocouple materials! Tungsten-rhenium thermocouples main strengths in: a fast response. 2, wide temperature range up to 2500 ℃. But is generally used in an inert atmosphere or a reducing atmosphere, or need to add protective casing, generally of Mo alloy casing!

Tungsten-rhenium wire standard configuration: W-3% Re Vs.W-25% Re; W-5% Re Vs W-26% Re are two types!


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Tungsten-rhenium wire surface is smooth, no glitches, uniform diameter.

Tungsten-Rhenium Wire Production Process

Preparation of raw materials - raw materials separation - mixing - reduction treatment - second mixing - Pressed Sintered - swaging, drawing processing - Finished

1 Raw material preparation: raw materials for the tungsten powder and ammonium perrhenate powder, tungsten powder particle size less than 4um, ammonium perrhenate size of less than 200um

2.Separating material: tungsten powder and powder of ammonium perrhenate were separated in the separator, so that agglomerated particles well dispersed

3. Mixing: The separation had separated ammonium tungsten powder and rhenium powder together into efficient mixer for mixing, mixing time 10-24 hours

4. Reduction treatment: mixed alloy powder under the protection of the hydrogen reduction treatment. Reduction treatment is divided into three phases:

First stage: reduction temperature 200-350 ° Time 1-2h
Second stage: reduction temperature 400-600 ° Time 1-2h
Third stage: the reduction temperature 700-900 ° Time 1-2h

The processing time for each stage according to the processing equipment conditions, furnace volume, loading capacity may be

5.Second Mixture
The restored again into high alloy powder were mixed mixer, mixing time 8-20h

6.Pressed Sintered
For the second time after mixing the alloy powder pressed into a billet, billet temperature of 1100-1300 ° now and hydrogen under the protection of pre-sintering time 0.4-1h, after the pre-sintered billet at a temperature of 2600-3000 ° and hydrogen under the protection of the final vertical melt sintering time 1-2h

7.Swaging, Drawing Processing
Sintered billet in rotary swaging machine for swaging processed into thin rods, thin rods made ​​in wire drawing machine pull tungsten rhenium alloy wire.


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