| Product Type: | Ball |
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| Material: | Tungsten Alloy |
| Carbon Content: | Low Carbon |
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| Class | Nominal tungsten (weight percent) | Density (g/cc) | Hardness ( HRC )(maximum) |
| 1 | 90 | 16.85 - 17.25 | 32 |
| 2 | 92.5 | 17.15- 17.85 | 33 |
| 3 | 95 | 17.75- 18.35 | 34 |
| 4 | 97 | 18.25- 18.85 | 35 |
Property of tungsten alloy WNiFe
AMST 21014 class 1
90%WNiFe, 90%WNiCu
Density : 17.0
Hardness: 32HRC max
Elongation: 5-20%
AMST 21014 class 2
92.5%WNiFe, 92.5%WNiCu
Density : 17.2
Hardness: 33HRC max
Elongation: 5-15%
AMST 21014 class 3
95%WNiFe, W95NiCu
Density : 18.0
Hardness: 34HRC max
Elongation: 3-10%
AMST 21014 class 4
97.5%WNiFe, W97.5NiCu
Density : 18.85
Hardness: 35HRC max
Elongation: 1-8%
| Tungsten Alloys |
||||
| EFI Grade | EF17 | EF175 | EF18 | EF185 |
| ASTM B 777-07 | 1 | 2 | 3 | 4 |
| Weight % Tungsten | 90 | 92.5 | 95 | 97 |
| Nominal Density GM/CC | 17.00 | 17.50 | 18.00 | 18.50 |
| Minimum* Ultimate Tensile Strength UTS (KSI) | 110 | 110 | 105 | 100 |
| Minimum* Elongation % | 5 | 5 | 3 | 2 |
| Modulus of Elasticity (KSI) | 45,000 | 48,000 | 50,000 | 52,000 |
Tungsten high heavy aloy applications:
- Balancing weights
- Electroheat upsetting anvil block
- Balls in bomb
- High voltage electrical contact
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