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Standardized stock blocks and custom-sintered components engineered under strict ISO 9001 and ASTM B777 specifications.
Delivering high-performance, non-toxic heavy alloy blocks optimized for mining exploration, defense programs, nuclear medicine, and maritime engineering across the continent.
Australia’s vast mining hubs—from the Pilbara to Queensland's Bowen Basin—rely on Tungsten Heavy Alloy (WHA) blocks for Gamma-ray collimators, non-magnetic casing weights, and drill string stabilizers operating in high-vibration downhole environments.
With increasing domestic defense manufacturing investments in South Australia and Victoria, high-density W-Ni-Fe blocks are critical for precision kinetic penetrators, naval guidance stabilization, and heavy armor components requiring superior density-to-volume ratios.
Supporting ANSTO (Lucas Heights) and leading medical facilities across Sydney, Melbourne, and Brisbane with high-attenuation shielding blocks, multileaf collimators (MLC), and radioactive isotope storage containers without lead contamination risks.
Tungsten Heavy Alloys (WHA) are metal-matrix composites consisting of 90% to 97% tungsten sintered with nickel-iron (Ni-Fe) or nickel-copper (Ni-Cu) binder phases. For engineering applications across Australia, selecting between magnetic (W-Ni-Fe) and non-magnetic (W-Ni-Cu) alloy blocks is crucial depending on electromagnetic tool interference and mechanical tensile requirements.
| ASTM B777 Grade | Nominal Tungsten % | Binder System | Density (g/cm³) | Tensile Strength (MPa) | Elongation (%) | Magnetic Permeability |
|---|---|---|---|---|---|---|
| Class 1 | 90% W | Ni-Fe | 17.0 ± 0.15 | ≥ 920 | ≥ 10 | Magnetic (<1.05) |
| Class 2 | 92.5% W | Ni-Fe | 17.5 ± 0.15 | ≥ 900 | ≥ 7 | Magnetic (<1.05) |
| Class 3 | 95% W | Ni-Fe / Ni-Cu | 18.0 ± 0.15 | ≥ 850 | ≥ 5 | Non-Mag (Ni-Cu: <1.01) |
| Class 4 | 97% W | Ni-Fe | 18.5 ± 0.15 | ≥ 800 | ≥ 3 | Slightly Magnetic |
While traditional shielding and counterweight solutions frequently utilized lead or depleted uranium, modern occupational health guidelines and environmental protocols across New South Wales, Queensland, and Western Australia favor tungsten heavy alloys. Tungsten blocks provide more than 1.5 times the density of lead, allowing for ultra-compact designs in aerospace flight controls, racing yacht keels, and downhole directional drilling assemblies where volume is constrained.
Global tungsten heavy alloy fabrication with dedicated distribution logistics for Australian and worldwide industrial clients.
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.
State-of-the-art metal injection molding, precision pressing, and ballistic fragmentation control technologies.
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.
Navigating global procurement requires reliable lead times and comprehensive quality assurance. We maintain ready-to-ship stock of standard tungsten alloy rectangular blocks, square bars, and cylindrical billets suitable for rapid dispatch to Australian commercial ports and regional air hubs. Whether you require rapid prototype stock in Perth or recurring volume deliveries to Sydney and Melbourne, our logistics network provides comprehensive DDP/CIF options with full customs compliance.
All stock blocks can be custom CNC milled, ground, turned, or EDM wire cut to exact customer drawings with dimensional tolerances down to ±0.01 mm. Surface treatments including nickel plating, chrome plating, and anti-oxidation passivation are available upon request to withstand harsh offshore and subsea environments.
Explore our complete catalog of certified tungsten alloy products ready for custom manufacturing and fast international delivery to Australia.
