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Home | About Us | Contact Us Tungsten Heavy Alloy • Tungsten Heavy Alloy Grade Chart
Tungsten Heavy Alloy Grade Chart
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| Material Specifications | Grades |
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| Grade | HA170 | HA175 | HA180 | HA185 | HA170C | HA180C |
| Matrix | 90 % W | 92.5 % W | 95 % W | 97 % W | 90 % W | 95 % W |
| Binder nominal % by weight | 7 Ni | 5 Ni | 3.5 Ni | 2 Ni | 6 Ni | 3.5 Ni |
| Binder nominal % by weight | 3 Fe | 2.5 Fe | 1.5 Fe | 1 Fe | 4 Cu | 1.5 Cu |
| MIL-T-21014 Rev D | Class 1 | Class 3 | Class 4 | Class 1 | Class 3 | |
| SAE-AMS-T-21014 | Class 1 | Class 2 | Class 3 | Class 4 | Class 1 | Class 3 |
| AMS 7725 C | 7725B | |||||
| ASTM B 777-87 | Class 1 | Class 2 | Class 3 | Class 4 | Class 1 | Class 3 |
| Minimum Density (g/cc) | 16.85 | 17.15 | 17.75 | 18.25 | 16.85 | 17.75 |
| Typical Hardness Rc | 26 | 26 | 28 | 30 | 26 | 28 |
| Ultimate Tensile Strength Min (ksi) | 110 | 110 | 105 | 100 | 110 | 110 |
| 0.2% Offset Yield Strength Min (ksi) | 75 | 75 | 75 | 75 | 75 | 75 |
| Minimum % Elongation (% in 1 Inch) | 10 | 8 | 6 | 2 | 6 | 6 |
| Grade | Application |
| HA170 | Counterbalance weight, inertial damping for the aerospace industry. |
| Ballast weights for racing industry. | |
| Radiation shielding applications. | |
| HA175 | Chatter free boring bars and toolholders, grinding quills, tool shanks. |
| Radioisotope containers. | |
| HA180 | Commonly used in medical imaging devices. Shielding and/or collimation of gamma rays and high energy x-rays. |
| HA185 | The preferred material that provides the greatest radiation shielding possible for the medical industry. |
| HA170C | Commonly used for radiation shielding components where shielding is located in close proximity to magnetic fields. |
| HA180C | Commonly used for radiation shielding components where shielding is located in close proximity to magnetic fields |
One Eagle Ridge Road Tyrone, Pennsylvania 16686 USA 814-684-7600 / 800-631-3640 | Fax: 814-684-9400 info@federalcarbide.com www.federalcarbide.com |