COMPANY PROFILE
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, our materials meet the most stringent specifications of global industries.
In critical military and defense applications, fragmentation is a natural phenomenon under the action of detonation products. The shell expansion and fracture behavior of warheads made of such heavy alloys are highly engineered. Unlike standard steel shells where the fragment sizes are uneven and irregular in shape—causing fast decay in flight speed and limited effective scope—our custom-engineered tungsten alloys provide predictable, devastating ballistic performance.
Why Density Matters: Material Comparison
Tungsten Heavy Alloys (WHA) provide up to 60% higher density than lead, allowing for compact designs in aerospace counterweights and radiation shielding.
Featured Tungsten Heavy Alloy Products
Precision-engineered solutions tailored for aerospace, military, medical, and industrial sectors across the USA.
ASTM B777 High-density tungsten alloy supplier
Premium class tungsten alloys meeting ASTM B777 specifications, ideal for aerospace vibration dampening and balance weights.
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Custom manufacturer of high-density tungsten alloy plates
Custom dimensions and thickness plates designed for heavy industrial ballast, high-temperature tooling, and radiation shielding.
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Tungsten Heavy Alloy Radiation Shielding
Maximum protection against X-ray and Gamma radiation. Ideal for nuclear medicine, collimators, and industrial radiography.
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High-density tungsten alloy industrial shielding components
Precision machined industrial shielding components designed to protect sensitive electronics in high-radiation environments.
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Customized tungsten-copper alloys for industrial sector
Combining high electrical and thermal conductivity of copper with the wear resistance of tungsten for EDM electrodes.
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High-density tungsten alloys for military applications
Engineered for armor-piercing ammunition, kinetic energy penetrators, and prefabricated fragmentation systems.
View Product DetailsTechnical Support & Precision Engineering
Pioneering research and advanced manufacturing technologies for high-performance tungsten materials.
Controlled Fragmentation Technology
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.
Advanced MIM & Pressing Technologies
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.
WHY CHOOSE US
Pioneering research, strict quality criteria, and global distribution logistics.
Strategic Logistics Hub
Located in Tianjin—one of China's largest steel distribution hubs. We own a research and development group leaded by materials science professor, senior engineer, and we keep close communication and cooperation with relevant academy of Central South University, which ensure our tungsten alloy products are in leading level in national even in international.
Mission & Client Focus
At Jiuding Metal Technology, our mission is clear. Quality first, all staff participation, sincere service, customer-orientation is the working criterion we always adhere to and while achieving the best to meet customers' need or over the customer's expectation is the greatest happiness to all staffs.
Our Core Values
We will provide best price and best service with best quality products for you, so we really expect sincere cooperation between both of us in the coming future! We work closely with USA suppliers to guarantee high-performance manufacturing standards.
EXHIBITIONS
Proudly showcasing our tungsten heavy alloy innovation in global defense and industrial expos.
Certificate & Quality Standards
ISO 9001, ISO 14001, and ISO 45001 Certified manufacturing processes ensuring strict ASTM B777 compliance.
Tungsten Heavy Alloys: Material Science, Processing & Defense Applications
1. Understanding Tungsten Heavy Alloys (WHA)
Tungsten Heavy Alloys (WHAs) are pseudo-alloys composed primarily of tungsten (ranging from 90% to 98%) combined with a ductile binder matrix, typically consisting of nickel-iron (Ni-Fe) or nickel-copper (Ni-Cu). Due to the extremely high melting point of pure tungsten (3,422°C), these materials cannot be fabricated using conventional casting techniques. Instead, powder metallurgy—specifically liquid-phase sintering—is utilized to consolidate the metallic powders into fully dense, high-performance components.
The primary characteristic of WHAs is their exceptional density, which ranges from 17.0 to 18.8 g/cm³. This is approximately 2.3 times denser than steel and 1.7 times denser than lead. By capitalizing on this property, aerospace and defense engineers can achieve significant mass concentration in highly confined spaces.
2. ASTM B777 Class Specifications
For industrial and military procurements in the USA, tungsten heavy alloys are classified under the ASTM B777 standard. This standard designates four distinct classes based on the nominal tungsten content:
- Class 1: 90% W (Density: 16.85 - 17.25 g/cm³). Offers the highest ductility and machinability.
- Class 2: 92.5% W (Density: 17.15 - 17.55 g/cm³). Balances strength, density, and elongation.
- Class 3: 95% W (Density: 17.75 - 18.15 g/cm³). Widely used for radiation shielding and vibration dampening.
- Class 4: 97% W (Density: 18.25 - 18.65 g/cm³). Maximizes density, though machining becomes highly specialized.
3. The Mechanics of Controlled Fragmentation in Defense
In ammunition and warhead design, fragmentation efficiency determines the lethal radius and overall capability of the projectile. Natural fragmentation of carbon steel casings often results in non-uniform fragment dispersion. The high pressure and thermal shock of detonation cause steel to shear along random crystal boundaries, creating micro-fragments that lose velocity rapidly due to aerodynamic drag.
By contrast, using high-density tungsten alloy spheres, cubes, or cylindrical columns as prefabricated fragments ensures consistent aerodynamic properties. Tungsten's high elastic modulus and yield strength prevent premature deformation during launch. Upon detonation, these pre-engineered fragments maintain their shape, ensuring maximum kinetic energy transfer upon impact with the target. This technology is critical for air-defense missiles, anti-radiation warheads, and anti-armor munitions.
4. Medical Radiation Shielding and Industrial Radiography
Tungsten heavy alloy is an ideal material for radiation shielding against gamma rays and X-rays. Unlike lead, which is toxic and subject to strict environmental regulations, tungsten is non-toxic and environmentally friendly. This makes it highly desirable for medical environments, including oncology treatment centers (multileaf collimators), radioisotope containers, and syringe shields.
In industrial radiography, tungsten collimators are used to direct radiation beams onto specific weld or structural zones while shielding operators from scatter radiation. The high density of tungsten allows for shielding components that are up to 40% smaller in volume than lead shields with equivalent attenuation capabilities.
5. Advanced Metal Injection Molding (MIM)
For complex, high-volume geometries, Zhuzhou Jiuding Metal Technology utilizes Metal Injection Molding (MIM). This process involves mixing ultra-fine tungsten powder with thermoplastic binders to create a feedstock. The feedstock is then injected into custom molds. After molding, the binder is removed through thermal or chemical debinding, followed by high-temperature sintering in hydrogen-atmosphere furnaces. The result is a near-net-shape component with densities exceeding 95% of theoretical density, minimizing the need for costly post-sintering CNC machining.