Basic Information
Grade
90%-97% Wnife / Wnicu
Finishing
Ground, Chemical Cleaned
Quality Standard
ASTM B 777, AMS-T-21014
Capacity
5000kgs Per Month
Product Overview
High-density Tungsten Heavy Metal Alloys are manufactured in accordance with international standards such as ASTM B777-15. These alloys are processed using advanced powder metallurgy techniques. The tungsten content ranges between 90% and 97% depending on the required density, mixed with nominal amounts of Nickel, Copper, or Iron. Through liquid phase sintering, the process results in four classes of high-density, machinable Tungsten Nickel Iron (magnetic) or Tungsten Nickel Copper (non-magnetic) alloys with exceptional physical properties.
TUNGSTEN HEAVY ALLOYS KEY FEATURES:
- Available in Magnetic (Ni-Fe) or Non-Magnetic (Ni-Cu) grades
- Efficient production of complex parts and components
- Environmentally friendly and lead-free
- High Density Range: 16.85 to 18.85 g/cc
- Superior machinability compared to pure tungsten
Product Description & Applications
Custom semi-finished and finished parts are supplied to meet various specifications including ASTM-B-777 Class 1, 2, 3, and 4, MIL-T-21014, and AMS 7725. These alloys are ideal for applications requiring high density and precise machinability.
Typical Applications:
- Aerospace & Automotive: Weights, ballast, and balancing rotating systems
- Medical Industry: Radiation shielding and medical imaging components
- Industrial Tools: Boring bars, sinker bars, and vibration-damping tools
- Precision Instruments: Mobile phone vibrators, clock cubes, and flywheels
- Energy Sector: Oil and gas drilling applications
Material Characteristics
Heavy tungsten alloy material possesses the highest melting point of all metals, making it suitable for extreme high-temperature environments. It is characterized by a uniquely low coefficient of thermal expansion and high dimensional stability. The material provides a homogeneous structure with no grain direction, ensuring consistent performance in static or dynamic balancing and radiation attenuation.
Technical Parameters
| Alloy Type |
WNiFe (ASTM B777, AMS-T-21014) |
WNiCu (ASTM B777, AMS-T-21014) |
| Designation |
90W |
93W |
95W |
97W |
90W |
93W |
95W |
| Density (g/cm³) |
16.85-17.30 |
17.15-17.85 |
17.75-18.35 |
18.25-18.85 |
16.85-17.30 |
17.15-17.85 |
17.75-18.35 |
| Tensile Strength (MPa) |
758Min |
758Min |
724Min |
689Min |
648Min |
648Min |
648Min |
| Elongation (%) |
5Min |
5Min |
3Min |
2Min |
2Min |
2Min |
1Min |
| Hardness (HRC) |
32Max |
33Max |
34Max |
35Max |
32Max |
33Max |
34Max |
Quality Assurance:
All products can be delivered as semi-finished for further processing or as finished products according to customer drawings. Every shipment includes an internal Test Report/Certificate for physical and chemical properties. Lead times typically range from 15-30 days.
Frequently Asked Questions
What are the main types of Tungsten Heavy Alloys available?
The main types are Tungsten Nickel Iron (WNiFe) and Tungsten Nickel Copper (WNiCu). WNiFe is magnetic, while WNiCu is non-magnetic, both offering high density and machinability.
What is the density range of these tungsten alloys?
The density typically ranges from 16.85 g/cc to 18.85 g/cc, depending on the tungsten content (90% to 97%).
Are these materials compliant with international standards?
Yes, our products are manufactured to meet ASTM B777-15, AMS-T-21014, and MIL-T-21014 Class 1 through 4 specifications.
Can I order custom-shaped parts?
Absolutely. We supply both semi-finished blanks and fully finished components based on your specific technical drawings and requirements.
Why is tungsten used for radiation shielding?
Tungsten has high radiation absorption capacity for X-rays and Gamma rays due to its high density, making it an excellent lead-free alternative for medical and industrial shielding.
What is the standard production lead time?
The typical production lead time is 15 to 30 days, depending on the complexity of the drawings and the order quantity.
Clyde Golf
