Tungsten
01
Tungsten Copper Alloy plate/ sheet W70Cu30/ W80Cu2
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- Tungsten copper alloy (Copper Tungsten Alloy, CuW, or WCu) is a pseudo-alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one.
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- The alloy combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, high thermal and electrical conductivity, and easy to machine. Parts are made from the WCu alloy by pressing the tungsten particles into a desired shape, sintering the compacted part, then infiltrating with molten copper. Sheets, rods and bars of the alloy are available as well.
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- Tungsten copper parts provided by us are all with these properties. The electrical and thermal properties of the alloy vary with different proportions. Copper increases the thermal conductivity, which plays a huge part when being used in circuit breakers. Electrical resistivity with an increase in the percentage of tungsten present in the alloy, ranging from 3.16 at 55% tungsten to 6.1 when the alloy contains 90% tungsten.
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- An increase in tungsten leads to an increase in ultimate tensile strength up until the alloy reaches 80% tungsten and 20% copper with an ultimate tensile strength of 663 MPa. After this mixture of copper and tungsten, the ultimate tensile strength then begins to decrease fairly rapidly.
Specification
|
Product name |
Grade |
Densityg/cm3 |
Electrical conductivity |
Hardness(HB≥) |
Softening point(≥) |
|
CuW |
CuW50% |
11.85 |
54 |
115 |
900℃ |
|
CuW |
CuW55% |
12.3 |
49 |
120 |
900℃ |
|
CuW |
CuW60% |
12.75 |
47 |
140 |
900℃ |
|
CuW |
CuW65% |
13.3 |
44 |
155 |
900℃ |
|
CuW |
CuW70% |
13.8 |
42 |
175 |
900℃ |
|
CuW |
CuW75% |
14.5 |
38 |
195 |
900℃ |
|
CuW |
CuW80% |
15.15 |
34 |
220 |
900℃ |
|
CuW |
CuW85% |
15.9 |
30 |
240 |
900℃ |
|
CuW |
CuW90% |
16.75 |
27 |
260 |
900℃ |
Application
Tungsten copper is widely used as a high voltage, super hydraulic switch and circuit breaker contact, protection ring, electric heating pier coarse anvil material, automatic submerged arc welding conductive nozzle, plasma cutting machine nozzle, electric welding machine, butt welding machine welding head , welding wheel, gas sealing electrode and point spark electrode, spot welding, welding materials, etc.
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Other products can be provided based on customer’s requirements