Related properties of heavy tungsten alloy
High-density tungsten alloy is a kind of alloy with tungsten as the matrix (W content 85-99%) and added with elements such as Ni, Cu, Co, Mo, Cr, etc. According to the composition characteristics and uses of the alloy, it is divided into W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag and other main series. Its density is as high as 16.5-19.0g/cm3, so it is called high-density tungsten alloy.
Characteristics of high-density tungsten alloy:
High specific gravity: generally 16.5-18.75g/cm3, high strength: tensile strength is 700-1000Mpa,
Strong ability to absorb radiation: its ability is 30-40% higher than that of lead,
High thermal conductivity: 5 times that of mold steel;
Small thermal expansion coefficient: only 1/2-1/3 of iron or steel,
Good electrical conductivity; good weldability and processability.
In view of the above-mentioned excellent functions of high-density alloys, they are widely used in aerospace, aviation, military, oil drilling, electrical instruments, medicine and other industries.
Mechanical properties and parameters of high specific gravity tungsten alloy
| Composition | 90%W | 93%W | 95%W |
97%W |
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| State | Sinter | Vacuum | Forge | Sinter | Vacuum | Forge | Sinter | Vacuum | Sinter | Vacuum |
| Density(g/cc) | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 | 18.25-18.85 | ||||||
| Hardness(HRC) | 32Max | 30Max | 40Min | 33Max | 31Max | 40Min | 34Max | 32Max | 35Max | 33Max |
| Tensile Strength (Max) | 770Min | 900Min | 1400Max | 770Min | 910Min | 1440Max | 735Min | 920Min | 700Min | 850Min |
| Yield Strength(Mpa) | 620Min | 620Min | 1280Max | 650Min | 650Min | 1340Max | 650Min | 650Min | - | - |
| Elongation(%) | 5Min | 15Min | 5Min | 5Min | 12Min | 3Min | 3Min | 12Min | 2Min | 6Min |
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