93W-Ni-Fe Tungsten Alloy Rod | High Density Balancing & Damping Rod

Zhuzhou Jiuding Metal Technology Co., Ltd. 93W-Ni-Fe Tungsten Alloy Rod is a high-performance, lead-free tungsten heavy alloy structural component specially formulated for precision balancing, vibration damping, gravity weighting and radiation shielding. Adopting mature powder metallurgy liquid-phase sintering and ultra-precision finishing technology, this 93% tungsten-grade alloy rod strictly complies with Mil-T-21014 US military standard, ASTM B777-99 / ASTM B777-15 (R2020), Chinese GB national quality standards and GB/T 1804-2000 dimensional tolerance specification. With balanced density, strength and machinability, 93W-Ni-Fe is the most versatile and widely adopted tungsten heavy alloy grade, serving as an ideal eco-friendly alternative to traditional lead and steel counterweight parts for high-end industrial and precision equipment.

Featuring a stable density of 17.5–17.75 g/cm³, 93W-Ni-Fe tungsten rods deliver 2.3 times higher density than ordinary steel and 1.5 times higher density than lead. It achieves precise weight concentration in limited installation space, effectively optimizes equipment center of gravity, suppresses high-frequency operational vibration and resonance, and significantly improves mechanical running stability and service life. The nickel-iron binder phase provides excellent ductility and processing performance, making it easier to machine than pure tungsten while maintaining ultra-high structural rigidity and compression resistance. Fully RoHS and REACH compliant, it meets global green manufacturing and environmental protection requirements.

Core Product Advantages of 93W-Ni-Fe Rods

93W-Ni-Fe is a classic universal tungsten heavy alloy grade with optimized tungsten-nickel-iron ratio, realizing the perfect balance between high density, mechanical strength, toughness and machinability. Zhuzhou Jiuding Metal Technology Co., Ltd.’s finished rods feature uniform microstructure, consistent density distribution and precise dimensional accuracy, with irreplaceable comprehensive advantages over conventional weighting materials:

• Stable Ultra-High Density: Reliable density of 17.5–17.75 g/cm³ ensures accurate and repeatable weight configuration, supporting miniaturized and lightweight structural design for precision equipment.

• Excellent Vibration Damping & Balancing Performance: High mass inertia and structural rigidity effectively absorb and eliminate micro-vibration and resonance during high-speed operation, ideal for long-overhang machining and high-precision dynamic balance scenarios.

• Superior Compressive & Structural Stability: Possesses outstanding compression resistance and deformation resistance. The 0.2% compressive yield strength reaches 850–950 MPa, with compressive breaking strength up to 1600–1800 MPa, maintaining stable performance under long-term high-load and cyclic operation.

• Balanced Machinability & Toughness: Compared with high-purity tungsten alloys, 93W-Ni-Fe has better ductility and machinability, supporting cutting, drilling, grinding and precision custom machining without cracking or chipping.

• Eco-Friendly & High Compliance: Completely lead-free and non-toxic, fully compliant with RoHS, REACH and international environmental standards, suitable for medical, automotive and aerospace high-standard procurement.

• Excellent Environmental Adaptability: Low thermal expansion coefficient, strong oxidation resistance and corrosion resistance, stable physical and chemical properties in high-temperature, high-humidity and complex industrial environments.

• Reliable Radiation Shielding Capacity: Superior X-ray and gamma-ray shielding performance, widely applicable for local radiation protection of medical and industrial detection equipment.

Product Performance Features

• Precision Gravity Calibration: Uniform density distribution and GB/T 1804 qualified dimensional tolerance ensure zero-deviation weight matching, realizing high-precision dynamic balance of mechanical structures.

• Efficient Vibration Suppression: Absorbs cutting and operational micro-vibration, improves equipment running smoothness and workpiece surface finish, reduces operational noise and vibration fatigue.

• Long Service Life & Fatigue Resistance: Integral sintered structure with excellent wear resistance and anti-fatigue performance, no deformation or weight attenuation during long-term continuous use.

• Strong Customization Adaptability: Supports non-standard diameters, lengths, surface treatments and precision tolerance customization to meet diverse structural assembly requirements.

• Strict Batch Consistency: Standardized powder metallurgy production process ensures identical density, hardness and mechanical properties for each batch, supporting large-scale standardized assembly.

Executive & Testing Standards

Executive Standards: Mil-T-21014 (US Military Tungsten Heavy Alloy Specification), ASTM B777-99 / ASTM B777-15 (R2020), Chinese GB National Product Quality Standards, GB/T 1804-2000 General Dimensional Tolerance Standard (equivalent to ISO 2768-1).

Testing & Verification Standards: Alloy composition testing per ASTM B890-25 (WD-XRF spectrometry); compressive mechanical performance testing per ASTM E9-19 (R2025) / GB/T 7314-2017; density testing per ASTM B311; tensile strength and hardness testing per ASTM E8 / ASTM E18. All unmarked dimensional tolerances strictly follow GB/T 1804-2000 to ensure product interchangeability and assembly accuracy.

93W-Ni-Fe Standard Technical Parameters

Parameter Note: All mechanical data are tested under standard sintered state, fully consistent with Mil-T-21014 and ASTM B777 industrial grading standards, ensuring data authenticity and engineering traceability.

Application of 93WNi Fe tungsten alloy

With balanced mechanical performance, stable density and excellent vibration damping capacity, Zhuzhou Jiuding Metal Technology Co., Ltd.’s 93W-Ni-Fe tungsten alloy rods are widely used in high-precision manufacturing and high-end industrial fields:

• Precision CNC Machining: Long-overhang anti-vibration boring bars, deep-hole machining damping rods, effectively solving tool flutter and improving machining accuracy.

• Aerospace & Aviation: Aircraft balancing components, gyroscope gravity calibration rods, aerospace precision structural counterweights.

• Automotive & Motorsport: Chassis balancing parts, high-speed rotating component counterweights, vibration damping structural rods.

• Medical Equipment: Medical instrument balancing components, radiation shielding structural parts, compliant with medical-grade environmental and safety standards.

• Industrial Drilling & Detection: Oil drilling weighting rods, downhole exploration counterweights, geological survey gamma-ray shielding parts.

• Precision Machinery & Sports Equipment: Instrument gravity balance rods, high-end sports equipment counterweight accessories, precision mechanical damping components.

Production & Quality Assurance

All 93W-Ni-Fe tungsten alloy rods are manufactured through professional powder metallurgy sintering and ultra-precision custom finishing processes, fully compliant with Mil-T-21014 military specifications, ASTM B777-99 industrial standards and GB/T 1804-2000 dimensional tolerance standards. Zhuzhou Jiuding Metal Technology Co., Ltd. implements strict full-process quality control covering raw material proportioning, sintering temperature monitoring, precision machining and finished product performance testing, ensuring stable density, accurate dimensions and consistent mechanical performance for every product.

To meet global high-standard procurement demands, we can provide complete qualification documents upon request, including third-party material test reports, official COA (Certificate of Analysis) and factory inspection certificates. Our factory holds ISO9001, ISO45001, ISO18001 and ISO13485 international system certifications. We support standardized mass production and personalized OEM & ODM customization services for various industrial-grade, medical-grade and military-grade application scenarios.