BRASSINTER electrical contacts combine refractory materials ( Tungsten – fusion point : 3400 ºC , Tungsten Carbide – fusion Point : 2900 ºC , Molybdenum – fusion point : 2610 ºC ) with high electrical and thermal conductivity metals , silver and copper , resulting in the following materials :
Characteristics
These composites are a combination of tungsten or tungsten carbide and copper produced by powder metallurgy .
They are capable of carrying high current with good arc resistance , highly resistant to wear and provide good electrical and thermal conductivity .
Applications
They are used in electrical contacts for high voltage lines , power switches , circuit breakers and other electrical equipment for power transmission and distribution .
|
| Material |
Composition (%) |
Hardness (HRB) |
Electrical Conductivity
(%IACS) |
UTS (PSI) |
Density (g/cm³) |
Thermal Conductivity w/cm°c ( 20°c) |
| 10CI |
W=90 Cu= Bal. |
103-109 |
26-35 |
- |
17,05 |
1,45 |
| 20CI |
W= 80 Cu= Bal. |
98-106 |
38-45 |
96000 |
15,50 |
1,50 |
| 30CI |
W= 70 Cu= Bal. |
92-96 |
44-52 |
85000 |
14,20 |
1,75 |
| 40CI |
W= 60 Cu=Bal. |
70-85 |
47-57 |
- |
13,00 |
1,95 |
| 50CI |
W= 50 Cu= Bal. |
65-75 |
51-65 |
- |
12,00 |
2,00 |
| 50WCI |
Wc= 50 Cu= Bal. |
91-97 |
44-50 |
70000 |
11,30 |
- |
Other Conditions
We manufacture according to our customers’ specifications.
Contact us via our website or by phone. |
