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Explore our high-density tungsten heavy alloy components designed for isotope containment and precision collimation.
In modern industrial radiography, non-destructive testing (NDT), and nuclear medicine, managing high-energy radiation is a vital engineering challenge. Radioactive isotopes such as Cobalt-60 (Co-60), Iridium-192 (Ir-192), and Cesium-137 (Cs-137) emit intense gamma radiation capable of penetrating solid steel. To safely store, transport, and manipulate these isotopes, materials with exceptional radiation attenuation properties are required. This is where the High Density Tungsten Bar plays an indispensable role.
Tungsten heavy alloys (WHA), primarily composed of tungsten (ranging from 90% to 97%) combined with nickel, iron, or copper binders, offer a unique combination of high density, mechanical strength, and machinability. With a density reaching up to 18.8 g/cm³, tungsten heavy alloys provide superior radiation shielding compared to traditional materials like lead and steel. This density allows engineers to design smaller, lighter, and more durable shielding containers and collimators without compromising safety.
Industrial isotope containers (often called "pigs" or exposure devices) are used extensively in pipeline radiography, offshore drilling inspections, and structural testing. These containers house highly radioactive cores that must be shielded when not in use. A high density tungsten bar serves as the inner shielding core, absorbing stray gamma photons and keeping external radiation levels well within regulatory safety limits.
Because tungsten heavy alloys possess excellent mechanical properties, they protect the radioactive source from external impacts, fire hazards, and harsh environmental conditions. Whether deployed in deep-sea pipeline surveys or high-temperature oil wells, tungsten isotope containers maintain their structural integrity, ensuring operational safety and compliance with international nuclear regulations.
In both industrial radiography and medical oncology, radiation cannot simply be blocked; it must be precisely directed. Collimators are devices that shape the radiation beam, allowing it to target a specific area while preventing exposure to surrounding zones. This requires high-density materials machined to extremely tight tolerances.
High density tungsten bars are the premier raw material for manufacturing collimator plates, slits, and multi-leaf collimator (MLC) blades. Thanks to tungsten's high linear attenuation coefficient, collimator leaves can be made exceptionally thin while still effectively blocking radiation. This enables the fabrication of highly complex, adjustable collimators that can shape radiation beams down to the millimeter level, minimizing the "penumbra" effect and maximizing target accuracy.
Traditional lead collimators suffer from structural sagging, creep, and thermal instability under high-energy radiation beams. Tungsten heavy alloys, with a melting point exceeding 3,400°C and a low coefficient of thermal expansion, maintain their precise dimensions even under continuous exposure to high-intensity X-ray and gamma-ray sources.
Furthermore, the high modulus of elasticity of tungsten heavy alloys ensures that thin collimator blades do not bend or warp during movement. This physical rigidity is crucial for automated industrial CT scanners and medical linear accelerators (LINACs), where collimator leaves must slide smoothly and repeatedly without jamming.
The global demand for high-density tungsten bars is growing rapidly, driven by the expansion of aerospace manufacturing, nuclear power generation, and advanced oncology treatments. Additionally, the transition toward Lead-Free initiatives worldwide has accelerated the replacement of lead shielding with environmental-friendly tungsten alternatives.
Looking forward, the integration of Metal Injection Molding (MIM) and 3D printing (additive manufacturing) with tungsten powders is revolutionizing the production of custom collimator geometries. This allows for the creation of internal cooling channels and complex curved shielding structures that were previously impossible to machine using traditional subtractive methods. As a pioneer in tungsten metallurgy, Zhuzhou Jiuding Metal Technology is at the forefront of these innovations, delivering custom-engineered solutions to clients globally.
Our industrial metallurgical capabilities ensure the highest standards of safety, density, and structural integrity.
Pre-control use of shell fragments groove, groove or increase the lining of explosives and other technical measures to make the shell partial reduction of the intensity to control the explosion of the broken parts to form fragments. Such warheads are characterized by the formation of fragment size of the uniform, shape the ground rules.
Prefabricated fragments forming a pre-processing will be the shape and quality of pre-designed steel ball, steel arrows, tungsten ball, tungsten and other prefabricated column fragments produced prefabricated sets of body fragments, and installed in the grenade projectile outer surface or inner surface. These prefabricated projectile fragmentation grenade explosion with the formation of fragments together constitute the natural fragmentation field, due to resistance of prefabricated fragments flying characteristic consistency, with prefabricated fragments of the grenade will be set within the framework of the lethal effect of a relatively dense, full-bombs a greater degree of lethality increase.
Because there is a prefabricated fragments will affect the negative effects of missile body structures, usually only in low-pressure chamber which uses artillery and ammunition, such as the forced large-caliber bullets and grenades. Applications also are the most common aircraft shells, grenades, mines and so on. The current high chamber pressure prefabricated artillery fragments, are used in canister form, such as Switzerland, L70-type 40 mm grenade where overhead is filled with tungsten carbide ball. Prefabricated fragments technology has been widely used on all types of warheads. Cylindrical fragments (Tungsten column) as a type of prefabricated fragments, due to high density, armor-piercing capability, as air defense, anti-radiation, anti-surface, one of the main anti-elements, and widely used.
Tungsten alloy products are widely used in fields of aerospace, medical equipments, military, mechano-electronic, oil exploration, vehicle, sports counterweight, gold-plated jewelry etc. With strong funding, advanced manufacturing technology, strict quality control and technical support from national famous university, our products are popular in country of America, Canada and Japan etc. Besides, we own international advanced technology of Metal Injection Molding (MIM) and pressing technology, we can manufacture standard products and various non-elevation products.
Established in 2001, Zhuzhou Jiuding Metal Technology Co., Ltd is a professional joint venture company which engages in manufacturing, machining and sales of tungsten heavy alloy, tungsten copper, cemented carbide, pure tungsten and other relevant tungsten alloy products. Our products mainly include tungsten heavy alloy, tungsten carbide, tungsten alloy fishing sinker, tungsten darts, tungsten Alloy swaging rod, bucking bar, copper tungsten electrode, tungsten alloy bullets, tungsten alloy syringe, tungsten alloy shielding vial, tungsten alloy boring bar, etc.
Due to its characteristics of high density, high hardness, high melting point, anti-corrosion, radiation protection, non-toxic and environmental-friendly, therefore, our Fragmentation is a natural under the action of detonation products, the shell expansion, fracture broken is made of such warheads is characterized not only as a container shell to form another anti-elements, fragments the size of the shell is uneven, irregular shape in the air fast decay in flight speed, so that the effective anti-personnel grenade limited in scope.
Explore our full range of high-performance tungsten alloys custom-machined for industrial, medical, and aerospace engineering.
