Product Description
Tungsten alloy counterweights are high-performance functional materials composed primarily of tungsten (85%-99%) with additions of nickel, iron, copper and other elements. Manufactured through metal injection molding (MIM) or traditional powder metallurgy processes, these materials exhibit high density, exceptional strength, and compact size. As critical components in balancing systems, tungsten alloy counterweights effectively optimize weight distribution, reduce vibration and mechanical stress, and enhance operational stability and precision.
Key Features
High Density Characteristics: Density ranges from 16.5-18.75 g/cm³, up to 19.0 g/cm³ maximum, more than twice the density of steel, enabling maximum counterweight effect in limited spaces.
Outstanding Mechanical Properties: As-sintered tensile strength of 800-1000 MPa, increasing to 1300-1500 MPa after heat treatment and deformation processing. Elongation reaches 10%-15% in as-sintered state and improves to 20%-30% after treatment.
Excellent Environmental Adaptability: Superior corrosion resistance and oxidation resistance, validated by salt spray tests showing no rust after 3000 hours in simulated marine environments. Low thermal expansion coefficient (4-6*10⁻⁶/℃) with thermal conductivity five times that of die steel.
Machining Friendly: Supports various machining operations including turning, milling, planing, threading and tapping, as well as large deformation strengthening treatments such as rolling, swaging and forging.
Eco-Safe: Non-toxic and pollution-free, compliant with international environmental standards, making it an ideal replacement for toxic materials like lead.
Technical Parameters Table
| Parameter Category |
Specific Indicator |
Value Range/Description |
| Physical Properties |
Density |
16.5-18.75 g/cm³ |
|
Tensile Strength |
As-sintered: 800-1000 MPa; Treated: 1300-1500 MPa |
|
Elongation |
As-sintered: 10%-15%; Treated: 20%-30% |
|
Thermal Expansion Coefficient |
4-6*10⁻⁶/℃ |
| Chemical Composition |
Tungsten Content |
85%-99% |
|
Binder Elements |
Ni, Fe, Cu, Co, etc. |
| Processing Accuracy |
Dimensional Tolerance |
±0.05 mm |
|
Density Uniformity |
±0.15 g/cm³ |
|
Surface Treatment |
As-sintered, Turned, Polished |
Application Fields
Automotive Industry: Used for wheel dynamic balance counterweights, achieving precise weight increments of 1/8 ounce through high density characteristics, optimizing balance during high-speed rotation.
Aerospace: Serves as gyroscope and aircraft counterweight components, providing maximum weight in limited spaces to ensure control system sensitivity and stability.
Shipbuilding: Multi-level tungsten alloy counterweight arrays used in submarine balance systems and yacht stabilization fins, reducing volume by 37% compared to traditional materials while improving anti-rolling capability by 12-15%.
Industrial Equipment: Balances spindles and worktables in CNC machine tools and industrial robots, reducing vibration and deflection, achieving welding precision of 0.1 mm.
Sports Equipment: Applied in golf club heads, tennis rackets and badminton rackets for weight adjustment, optimizing equipment control performance through balance point regulation.
Military Defense: Used as armor-piercing projectile cores and weapon counterweights, leveraging high momentum characteristics to enhance lethality while reducing recoil.
Customization Services
We provide comprehensive customized solutions tailored to client requirements for precise control of weight distribution and physical properties. Support complex geometric shapes including cylinders, blocks and irregular structures. Through precision CNC machining technology, we achieve dimensional accuracy of ±0.05mm. Flexible composition adjustment available, offering various alloy series including W-Ni-Fe (magnetic) or W-Ni-Cu (non-magnetic) to meet special environmental requirements.
Support and Services
Technical Consulting: Professional advice on material selection, structural design and application optimization.
Quality Assurance: Comprehensive quality control from powder pretreatment to sintering, ensuring density uniformity error ≤ ±0.15g/cm³.
After-sales Support: Provides machining guidance and usage maintenance manuals to ensure long-term stability.
Logistics Services: Wooden case packaging according to order requirements to ensure transportation safety.
