Pure Tungsten AM Powders
Elmet Technologies is the sole US owned, and fully integrated producer of high-purity, fully dense pure tungsten AM powders. We have a specific focus on developing powders for the laser powder bed fusion (L-PBF) additive manufacturing processes. Our tungsten powders feature low oxygen content, excellent flowability, and high apparent and tap densities. With the highest melting point of all elements, it is an excellent choice for demanding manufacturing applications in aerospace and defense.
Using tungsten in additive manufacturing provides several advantages, such as the ability to create complex geometries, consolidate parts, customize designs, achieve rapid production, and minimize waste. As experts in powder metallurgy, we offer custom formulations of powders tailored to meet specific customer requirements. Our fully integrated manufacturing process allows us to control and adjust material properties such as ductility, tensile strength, hardness, and grain size to align with the needs of particular applications. Additionally, this process allows for part consolidation, reducing the need for multiple components and streamlining production.
Tungsten Chemical Characteristics
| Element | Percent% |
| W | 99.9 min |
| C | < 0.01 |
| O | < 0.03 |
Tungsten Physical Characteristics
| Property | L-PBF | DED |
| Bulk density, g/cc | > 10 | > 10 |
| Flow, s/50g | < 7 | < 80 |
| PSD, d10, µm | > 10 | > 40 |
| PSD, d90, µm | < 53 | < 150 |
Custom chemistry is available upon request. Printed material passes all property requirements of the ASTM B777 specifications.
Benefits of Pure Tungsten Powder
- Complex Geometries: Enables the production of intricate parts that are not feasible with traditional casting or machining methods.
- Part Consolidation: Allows for the combination of multiple components into a single piece, reducing assembly requirements.
- Customization: Offers the flexibility to modify materials for each specific application, ensuring tailored solutions.
- Rapid Production: Speeds up development time compared to conventional manufacturing techniques.
- Minimal Waste: Powder can be reused during the process, significantly reducing material waste.
Our Additive Manufacturing Tungsten Powder Feedstock
Elmet Technologies provides industry-leading tungsten additive manufacturing (AM) powder that meets the highest standards for strength and performance. We are actively developing our tungsten powder feedstock to expand beyond our current options, which include Tungsten Heavy Alloy (WHA), Tantalum Tungsten (TaW), and Pure Tungsten Powder. While these powders can be more challenging to print with, we are committed to ongoing research and development to deliver the best quality powders to our customers.
Our Tungsten Products
- Sheet: Elmet offers cold rolled sheets in various thicknesses and lengths, starting from metal powder.
- Plate: High-quality molybdenum and tungsten plates, customizable in thickness, length, and surface finish.
- Rod: Common sizes of tungsten rods for semiconductors, lighting, furnaces, and more.
- Wire: Tungsten, molybdenum, and molybdenum potassium-doped HCT wire in common sizes.
- Cubes: Various tungsten cubes, often used in fragmentation applications.
- Spheres: Tungsten spheres, with a dedicated cell for advanced product development.
- Fabrications: Sophisticated machining and fabrication for tungsten and molybdenum, with decades of experience.
Tungsten Powder Vs Tungsten AM Powder
Tungsten Powder and Tungsten AM Powder serve different purposes across various industries. Pure Tungsten Powder, a finely divided form of pure tungsten, is widely used in traditional manufacturing due to its unique properties. On the other hand, Tungsten AM Powder is specifically engineered for 3D printing and additive manufacturing, where materials are added layer by layer to create precise, efficient parts. The key difference lies in their applications: Tungsten Powder is ideal for conventional manufacturing methods, while Tungsten AM Powder is optimized for advanced, 3D printing techniques.
Pure Tungsten Powders for AM
| W Powder Grades | Bulk Density (g/cc) | Hall Flow Rate (s/50g) | Particle Size D10 (mm) | Particle Size D50 (mm) | Particle Size D90 (mm) |
| PDWP – L-PBF (10 – 50 µm) | > 10 | < 6 | > 10 | 25 – 35 | < 50 |
| PDWP – DED (40 – 150 µm) | > 10 | < 6 | > 40 | 70 – 80 | < 150 |
W Material Facts & Figures
- Symbol: W
- Category: Transition Metal, Group VI
- Atomic Number: 74
- Density: 19.25 g / cm3
- Melting Point: 3420 °C, highest metal, 2nd highest of elements
- Discovered: 1781
- Low vapor pressure
- High electrical resistance
- Low coefficient of thermal expansion (CTE)
- High density
- Strong corrosion resistance
- High elastic modulus
Your Partner in Additive Manufacturing Solutions
Elmet Technologies is your trusted partner in additive manufacturing solutions. We offer a wide range of capabilities, including 3D printing, laser-powder bed fusion, powder blending, spray drying, plasma densification, powder metallurgy, and alloy development. Our commitment to continuous research and development keeps us at the forefront of additive manufacturing advancements. With our comprehensive approach, we deliver exceptional results, making us the ideal partner for all your additive manufacturing needs.