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Round Tungsten Heavy Alloy block

Tungsten Heavy Alloy
Tungsten heavy alloys generally are refractory metal, which have two-phase composites consisting of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloy is added with Co、 Mo、Cr, etc. They have very high melting point and have a density twice that of steel and are more
than 50% heavier than lead. Tungsten content in conventional heavy alloys varies from 90 to 98 weight percent and is the reason for their high density (between 16.5 and 18.75 g/m3). Nickel, iron and copper serve as a binder matrix, which holds the brittle tungsten grains together and which makes the alloys ductile and easy to machine. Nickel-iron is the most popular additive, in a ratio of 7Ni:3Fe or 8Ni:2Fe (weight ratio). The conventional processing route for tungsten heavy alloys includes mixing the desired amount of elemental powders, followed by cold pressing and liquid phase sintering to demanded density. The matrix alloy melts and takes some tungsten into solution during liquid phase processing, resulting in a microstructure through which large tungsten grains (20–60µm) are dispersed in the matrix alloy. The as-sintered material often is subjected to thermo mechanical processing by swaging and aging, which results in increased strength and hardness in the heavy alloys.
  • TGB-B-90015

  • ZZJD

  • 8414909090

Product Description

Main application of Tungsten Heavy Alloy

The main application of Tungsten Heavy Alloy blocks is in the field of radiation shielding. Tungsten Heavy Alloys (THAs), also known as high-density alloys, are composed of tungsten as the primary metal along with a small percentage of nickel-iron or nickel-copper as a binder. Due to their high density and excellent radiation absorption properties, THA blocks are widely used in various industries and applications where radiation shielding is required. Some of the main applications include:

1. Medical Radiation Shielding: Tungsten Heavy Alloy blocks are extensively used in medical facilities for shielding against radiation in diagnostic imaging (X-rays, CT scans, mammograms) and radiation therapy (cancer treatment). They are used to protect patients, medical personnel, and the general public from the harmful effects of ionizing radiation.

2. Nuclear Power Plants: THA blocks are utilized in nuclear power plants to shield against radiation emitted during nuclear reactions. They are used to construct radiation barriers, containment walls, and other shielding structures to ensure the safety of workers and prevent the release of radiation into the environment.

3. Industrial Radiography: Tungsten Heavy Alloy blocks are employed in industrial radiography, which is a non-destructive testing technique used to inspect the integrity of welds, structures, and components. The blocks are used to shield workers and control the radiation exposure during the inspection process.

4. Research Facilities: THA blocks are used in research facilities that involve the use of radioactive materials or equipment generating ionizing radiation. They are employed to build shielding enclosures, hot cells, and other structures to protect researchers and prevent radiation leaks.


5. Aerospace and Defense: Tungsten Heavy Alloy blocks find applications in the aerospace and defense industries. They are used for shielding radiation in aircraft, spacecraft, and military equipment that may be exposed to radiation sources, such as nuclear reactors or radioactive materials.

Overall, the high density, excellent radiation absorption, and mechanical properties of Tungsten Heavy Alloy blocks make them an ideal choice for various radiation shielding applications in industries where safety from ionizing radiation is crucial.

The major tungsten heavy alloy products and services of Zhuzhou Jiuding Metal Technology Co., Ltd offer

--Tungsten heavy rod, bar, cube, brick, block, plate for various applications

--Tungsten billet/barrel as main body of professional darts,

--Screws/heads for golf club, flying fish sinker

--Counterweight used in yacht, sailboat, submarine and other vessels

--Ballast for aircraft, helicopter, F1 racing cars, and other vehicles

--Kinetic energy penetrators for defeating heavy armor

--Governor balance weight, holders for oil well drilling

--Cubes/balls for bullet, rifle, missile and bomb

--Radiation shield, source holder for nuclear U-power, X-ray, and medical instruments parts etc.

-- Bobs/vibrators for mobile phone, clock

-- Tungsten alloy nozzle


--Design and machining

--Professional inspection and technical data available

--Authorized ISO 9001:2008 Certificate



We own international advanced technology of Metal Injection Molding (MIM) and pressing technology, we can manufacture standard products and various non-elevation products.

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