Products Description
WNiCu Alloy Parts are made from WNiCu alloy, also known as tungsten nickel copper alloy, is a type of heavy metal alloy that combines tungsten with nickel and copper. This alloy is known for its high density, good electrical conductivity, and excellent thermal conductivity.
Features of WNiCu Alloy Parts
Composition: WNiCu alloy parts are composed of tungsten (W) as the principal component, with nickel (Ni) and copper (Cu) as additional constituents to improve ductility and electrical conductivity.
Density: WNiCu alloy parts have a high density of approximately 17–18 g/cm³, which is still less than that of pure tungsten but markedly higher than that of many other alloys.
Electrical Conductivity: WNiCu alloy parts are more suitable for electrical and electronic applications because the presence of nickel and copper improves their electrical conductivity, making them beneficial for applications requiring tungsten.
Thermal Conductivity: WNiCu alloy parts have good thermal conductivity, a property that is important for applications involving heat dissipation.
Ductility: Nickel and copper increase the alloy's ductility compared to pure tungsten, making it easier to machine and shape into desired parts.
Applications of WNiCu Alloy Parts
Electronics: WNiCu alloy components are particularly prominent in the electronics sector thanks to their advantageous properties, including electrical and thermal conductivity, as well as electromagnetic shielding. In power electronics, these components function as advanced heat sinks, transferring heat away from high-power transistors and integrated circuits. Balance between density and weight is achieved due to their high density (16-18 g/cm³), enabling the accomplishment of precision vibration-damping tasks in instruments and counterweights in robotic arms for semiconductor manufacturing. The non-magnetic properties of the alloy are important for MRI machines and other devices which operate in magnetic fields where minimal interference is essential, along with precision measurement tools.
Aerospace: WNiCu Alloy Parts have applications in aerospace for use as counterweights, balance masses, and other parts where their elevated density and thermal attributes are advantageous.
Automotive: WNiCu alloy parts can be applied in automotive design for balance weights, dampeners, and other clutter components that require high density without pronounced increase in volume.
Medical: WNiCu Alloy Parts can be applied in medical devices for elements that require accurate balancing or high density, including shielding for radiation and imaging devices.
Oil and Gas: The alloys are used in the construction of drill collar counterweights, shielding housings for Measurement While Drilling (MWD) systems, and counterbalancing components for other downhole tools, due to the components' high density (16-18 g/cm³), corrosion resistance, and mechanical strength. All these characteristics make WNiCu alloys of excellent range serve as critical tools in petroleum drilling operations. WNiCu alloys also increase the effectiveness of non-magnetic features of downhole electromagnetic measurement devices, ensuring non-interference with tool operations. Non-magnetic properties also improve operational verticality control during drilling since increased density enhances vertical control drilling tool weight amplification properties.
Specification of WNiCu Alloy Parts
|
Grade |
90WNiCu, 93WNiCu, 95WNiCu, 97WNiCu |
|
Purity |
W Content: ≥88% |
|
Diameter |
2mm-320mm |
|
Length |
2-600mm |
|
Melting Point |
3410℃ |
|
Density |
16.8-18.8 g/cm³ |
|
Tensile Strength |
700-1000Mpa |
|
Surface |
Polished, Milling, Grinding, Sintered, Forged, Grounded |
|
Delivery Time |
20 days |
|
Standard |
ASTM B777, MIL-T-21014, GB |
FAQ:
What is the MOQ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is the package?
A: cartoon case or plywood case.
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
What are the main advantages of WNiCu over pure tungsten?
A: WNiCu offers:
✓ 3x better machinability (can be drilled/tapped)
✓ 30% lower production costs
✓ No brittle fracture risk like pure tungsten
How does the density compare to lead?
• WNiCu: 16-18 g/cm³
• Lead: 11.3 g/cm³
Ideal when space-constrained shielding is needed
Can these parts be welded?
Limited weldability - recommended joining methods:
▸ Silver brazing (850°C)
▸ Mechanical fastening
▸ Conductive epoxy bonding
What are the temperature limits?
Continuous use: -200°C to +600°C
Short-term peaks: 800°C (copper begins softening)
Surface treatment options?
Standard:
• Electroless nickel plating (for corrosion resistance)
• Passivation (ASTM A967)
Special:
• Gold plating (RF applications)
• Anodizing (color coding)
Are they RoHS compliant?
Yes - contains no restricted substances:
✓ 0% lead/cadmium/mercury
✓ Fully recyclable
How to prevent oxidation?
For high-temp applications:
Use inert gas atmosphere
Apply anti-oxidation coatings
Keep below 400°C in air
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