High density W based Tungsten alloys harmless to the health and
environment
1. Description
Tungsten alloys are materials with a high tungsten content and low
amounts of Ni Fe or Ni Cu or Cu.
2. Advantages
- High Density
- Good machinability
- Good mechanical properties
- High modulus of elasticity
- High absorption capacity against X-rays and Y-rays
- Harmless to the health and environment
3. Application
- Protection shields for nuclear radiation
- Balls in bomb
- Balancing weights
- High voltage electrical contact
- Substitutional material for Uranium
- Electrodes for Resistance Welding
- Electroheat upsetting anvil block
4. Chemical composition, Physical & Mechanical Properties of
Tungsten Base, High Density Metal ( Theoretical Value)
| Type | Density g/cm³ | Tensile strength MPa | Elongation | HRC |
| 85W-10.5Ni-4.5Fe | 15.8-16.0 | 700-1000 | 20-33 | 20-30 |
| 90W-7Ni-3Fe | 16.9-17.1 | 700-1000 | 20-33 | 24-32 |
| 90W-6Ni-4Fe | 16.7-17.0 | 700-1000 | 20-33 | 24-32 |
| 91W-6Ni-3Fe | 17.1-17.3 | 700-1000 | 15-28 | 25-30 |
| 92W-5Ni-3Fe | 17.3-17.5 | 700-1000 | 18-28 | 25-30 |
| 92.5W-5Ni-2.5Fe | 17.4-17.6 | 700-1000 | 25-30 | 25-30 |
| 93W-4Ni-3Fe | 17.5-17.6 | 700-1000 | 15-25 | 26-30 |
| 93W-4.9Ni-2.1Fe | 17.5-17.6 | 700-1000 | 15-25 | 26-30 |
| 93W-5Ni-2Fe | 17.5-17.6 | 700-1000 | 15-25 | 26-30 |
| 95W-3Ni-2Fe | 17.9-18.1 | 700-900 | 8-15 | 25-35 |
| 95W-3.5Ni-1.5Fe | 17.9-18.1 | 700-900 | 8-15 | 25-35 |
| 96W-3Ni-1Fe | 18.2-18.3 | 600-800 | 6-10 | 30-35 |
| 97W-2Ni-1Fe | 18.4-18.5 | 600-800 | 8-14 | 30-35 |
| 98W-1Ni-1Fe | 18.4-18.6 | 500-800 | 5-10 | 30-35 |
| 90W-6Ni-4Cu | 17.0-17.2 | 600-800 | 4-8 | 25-35 |
| 93W-5Ni-2Cu | 17.5-17.6 | 500-600 | 3-5 | 25-35 |
5. Dimensions:
Balls: φ 2mm above
Shafts: (φ1mm above)×(Length max.500mm)
Sheets: (Thickness 1.5mm above)×(Wideness max.200mm)×(Length
max.300mm)
Square, round and rectangle sizes: diameter 550mm above
