Copper Tungsten Strip, Foil, Plate, Sheet, Customized Parts 65%W35%Cu, 70%W30%Cu, 75%W25%Cu , 80%W20%Cu Material, ASTM B702 Quality Standard
Product Description
Copper Tungsten Alloys are tungsten based composite materials that are a strong refractory metal processed by a stringently controlled process including pressing, sintering and infiltrating with copper. The properties of tungsten composites are related to the copper to tungsten ratio. If the tungsten content improves, the electric arc and wear resistance will increase while the thermal and electrical conductivity decreases. Copper tungsten composites have high arc resistance combined with good electrical conductivity and high thermal conductivity and low thermal expansion.
Kefeng offers: 65%W-35%Cu, 70%W-30%Cu, 75%W-25%Cu ,80%W-20%Cu material
Our standard: accordance with ASTM B702
We, Kefeng Powder Metallurgy Co., manufactures and supplies DRC Conflict Free material only.
Characteristics and features
The Copper tungsten material products are highly resistant to heat, electric arc, wear and deformation at high temperature welding, flash butt and spot welding. They also have excellent electrical and thermal conductivity.
1. Low thermal expansion
2. High wear resistance
3. Low consumption
4. High arc resistance
5. High thermal and electrical conductivity
Application
Due to their unique properties, tungsten based composites are widely used where the combination of goods electrical and thermal conductivity and low thermal deformation is required. Their mechanical and physical properties make them particularly suitable in electric resistance welding as electrical contacts or heat sinks and in electrodes for electrical discharge machining (EDM) and electrochemical machining (ECM)
Kefeng’s Copper Tungsten typical applications as followings:
1. High temperature furnace components, Heat Sinks
2. Edm electrodes, High-voltage Discharge Tubes
3. High voltage arc contacts, electrical contacts
4. Vacuum contacts, Electrodes for resistance welding and spark erosion
5. Seam welding bearing inserts, leaders
6. Balance weights, Spreaders, microwave carriers
7. Hermetic package bases and housings
8. Ceramic substrate carriers, medical components
9. Heating elements, dies for castings, high speed tools
10. Flash and Butt welding die inserts and facing
11. Projection welding electrodes
Xi’an Kefeng Powder Metallurgy can produce below grades of Copper Tungsten metal composite materials.
To meet your specific needs. Kefeng can supply various sizes and compositions for a timely 15-30 days.
Shipping or we can offer custom grades, shapes and finished parts with a short lead time. These metal composite materials produce dense hard metals with low thermal expansion, good thermal and electrical conductivity, excellent arc resistance, superior wear resistance and strength at elevated temperatures.
Technical parameters
Materials |
Wt% Tungsten Content |
Wt% Copper Content |
Density (g/cc) |
Electrical Conductivity (%IACS) |
Hardness (HB) |
W65Cu35 |
65 |
Balance |
13.30 |
44 |
88 |
W70Cu30 |
70 |
Balance |
13.80 |
42 |
88 |
W75Cu25 |
75 |
Balance |
14.50 |
38 |
94 |
W80Cu20 |
80 |
Balance |
15.15 |
34 |
98 |
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