Spherical Tungsten Molybdenum Alloy Powder Description
Spherical tungsten-molybdenum (W-Mo) alloy powder is an alloy material primarily composed of two refractory metal elements, tungsten and molybdenum. The powder appears as fine gray-black particles. It combines the characteristics of both tungsten and molybdenum, such as high melting point, high boiling point, high tensile strength, great hardness, ablation resistance, oxidation resistance, and impact resistance.
Research indicates that the melting point of the alloy increases with higher tungsten content. When the tungsten content reaches 25%, the melting point of the alloy is approximately 200°C higher than that of pure molybdenum. The density, hardness, and strength of the alloy also generally improve with increasing tungsten content. For instance, when the tungsten content rises from 0% to 40%, the room-temperature tensile strength increases from 617 MPa to 900 MPa.
Spherical Tungsten Molybdenum Alloy Powder Specifications
Chemical Composition
|
Element
|
Value %
|
Element
|
Value %
|
|
W
|
2~98
|
Sn
|
<0.001
|
|
Mo
|
2~98
|
Sb
|
<0.001
|
|
Si
|
1.0~9.0
|
Cu
|
<0.003
|
|
Mg
|
<0.005
|
Ca
|
<0.001
|
|
Mn
|
<0.004
|
Pt
|
<0.001
|
|
Ni
|
<0.006
|
K+Na
|
<0.001
|
Physical Properties
|
Appearance
|
gray powder
|
|
Size
|
5-25μm, 15-45μm, 15-53μm, 45-75μm, 45-105μm, 5-150μm
|
|
Apparent Density (g/cm3)
|
≥6.0
|
|
Tap Density (g/cm3)
|
≥7.0
|
|
Hall Flow Rate (s/50g)
|
≤10.0
|
Spherical Tungsten Molybdenum Alloy Powder Applications
Compared to conventional tungsten-molybdenum (W-Mo) alloy powder, spherical W-Mo alloy powder has a broader range of applications. Because it possesses lower surface roughness and reduced flow resistance.
Applications include:
- Filaments for light bulbs
- Heating elements for high-temperature electric furnaces
- Semiconductor components and heat sinks
- Grids for electron tubes
- Corrosion-resistant parts for zinc smelting furnaces
- Nozzles and mandrel components for Poche furnaces
- Components such as gas rudders and protective plates in rocket engines
Spherical Tungsten Molybdenum Alloy Powder Packaging
Our Spherical Tungsten Molybdenum Alloy Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
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