High-density tungsten alloys provide a unique combination of density, mechanical strength, machinability, corrosion resistance, and economy. These versatile materials provide distinct advantages when compared to traditional high-density materials such as lead or uranium. Incredible strength, consistent durability, and long-lasting value—our high-density tungsten alloys (tungsten heavy alloy) are the perfect choice for radiation shielding, weights and counterbalances, boring bars, and grinding quills, crankshaft balancing, rotating inertia members, ordnance components, and high-temperature tooling applications.
W-Ni-Fe alloys and W-Ni-Cu alloys (with tungsten content of 90%~97%) are regular tungsten-heavy alloys with high density. We offer a variety of high-density alloys, available in bars, plates, sheets, foil, and rods. We also have extensive machining capabilities, allowing us to provide weights in standard sizes or custom products finished to your required specifications. We also provide tungsten lanthanum alloy products in shaped and machined forms.
Properties of tungsten heavy alloys:
- High density (17-18.5g/cm3)
- High melting point
- Wear resistance
- High tensile strength
- Good elongation capacity
- Low vapor pressure
- Excellent thermal stability and
- High radiation absorption capacity
- Slightly Magnetic
Due to these advantages, they are widely used in various fields including sports, industry medicine, etc. The most common high-density tungsten alloys are Tungsten Nickel Iron Alloy (W-Ni-Fe Alloy) and Tungsten Nickel Copper Alloy (W-Ni-Cu Alloy).
Physical and mechanical properties of Tungsten Heavy Alloys:
| Alloy Type (wt%) | 90W-7Ni-3Fe | 90W-6Ni-4Cu | 93W-5Ni-2Fe | 93W-4Ni-3Cu | 95W-3.5Ni-1.5Fe | 95W-3.5Ni-1.5Cu | 97W-2.1Ni-0.9Fe |
| MIL-T-21014 | Class 1 | Class 1 | — | — | Class 3 | Class 3 | Class 4 |
| SAE-AMS-T-21014 | Class 1 | Class 1 | — | — | Class 3 | Class 3 | Class 4 |
| ASTM B777-87 | Class 1 | Class 1 | — | — | Class 3 | Class 3 | Class 4 |
| Typical Density (g/cc) |
17.1 | 17.0 | 17.6 | 17.6 | 18 | 18 | 18.5 |
| Typical Hardness RC | 25 | 24 | 26 | 26 | 27 | 27 | 28 |
| Yield Strength (Min, Mpa) |
650~850 | 550~750 | 650~850 | 550~750 | 600~750 | 500~700 | 620~670 |
| Elongation % | 20~25 | 8~15 | 15~20 | 5~10 | 8~13 | 3~5 | 2~5 |
Dimensions of Shaped Tungsten Alloys
| Product | Item Code | Length (mm) | Width (mm) | Thickness (mm) | Diameter (mm) |
| Rod | HM74-WR | 2 ~ 600 | — | — | 2 ~ 320 |
| Ball | HM74-WB | — | — | — | 1.5 ~ 200 |
| Plate | HM74-WP | 10 ~ 600 | 10 ~ 300 | 2 ~ 200 | — |
| Other types | HM74-WX | Cube, ring, block, and other customized shaped products | |||
Application-related tungsten alloy products: 
Non-Ferrous Crucible Inc. provides different kinds of tungsten heavy alloy products, we also manufacture them according to clients’ specifications. Please send us drawings for tailor-made tungsten alloys to inquiry.crucible@winnewtech.com.
Please send your request to inquiry.crucible@winnewtech.com, and we will reply you within 3 minutes
inquiry.crucible@winnewtech.com
Non-Ferrous Crucible Inc.
Tel: +86-755-84112759
Fax: +86-755-84112759
No. 7, Gongye 2nd Road, Jinsha, Kengzi, Pingshan, Shenzhen, China.
518122
inquiry.crucible@winnewtech.com
