Tungsten heavy alloys are materials with a high tungsten content and low amounts of Ni, Fe, or Ni, Cu. Some tungsten alloys have added Co, Mo, or Cr, etc. Their densities can be as high as 16.8~18.8 g/cm³.
Class | Nominal Tungsten | Density | Hardness | Tensile Strength | Elongation |
Weight% | g/cm3 | Rockwell C | MPa | % | |
1 | 90 | 16.85-17.25 | 24-32 | 700-1200(600-800) | 20-33(4-8) |
2 | 92.5 | 17.15-17.85 | 25-30 | 700-1400(500-600) | 15-25(3-5) |
3 | 95 | 17.75-18.35 | 25-35 | 700-1200 | 8-15 |
4 | 97 | 18.25-18.85 | 30-35 | 600-1000 | 8-14 |