Pure Tungsten Material and Products
Elmet Technologies is the leading North American manufacturer of pure tungsten metal. Our products are manufactured in the United States at our Lewiston, Maine facilities. Elmet’s fully-integrated manufacturing starts with metal powder production through the reduction of tungsten oxide to produce high purity tungsten metal powder. We then utilize powder metallurgy processes to press and sinter ingots, then roll, swage, and draw the metal into fully-dense flat or round mill products. Rod, sheet, plate, foil, and wire mill products are either sold or used to feed our industry-leading fabrication and machining services. Fully integrated manufacturing enables Elmet to control and tailor material properties like ductility, tensile strength, hardness, grain size, and others to meet specific application requirements. Elmet maintains ISO9001 and AS9100 certified quality management systems.
Pure tungsten metal products:
- Tungsten Powder
- Tungsten Sheet
- Tungsten Plate
- Tungsten Rod
- Tungsten Wire
- Tungsten Machining
- Tungsten Fabrications
In addition to the pure metal, Elmet provides tungsten-based alloys that achieve specific performance characteristics:
Tungsten – Potassium (WK)
Potassium-doped product is targeted for use where high temperature, non-sag wire properties are required in the lighting and electronic industries. Additionally, the rod form of the doped product exhibits superior strength and machinability in other industrial applications.
Tungsten Heavy Alloy (WHA)
WHAs are the preferred form of W for most mass/density related requirements in large components that can be easily fabricated by conventional powder metallurgy process. WHA is found in kinetic energy penetrators, radiation shielding, balance weights, downhole logging, and Inertial damping weights to name a few categories.
Tungsten Lanthana (WLa)
Lanthanated W is targeted for applications requiring high-temperature performance with improved creep resistance, increased strength, and higher recrystallization temperature.
- 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
Please visit our resources page for more content and material information: Customer Resources