Shenyang Xinxin Alliance Electric Co.,Ltd
GIS、Circuit & Parts
GIS, circuit breaker, disconnector & its parts
GIS, circuit breaker, disconnector & its parts
Cu-W Contact(Tungsten-Copper)

Quality

Unit

70/30

80/20

85/15

90/10

Tungsten  

%

70±2

80±2

85±2

90±2

Copper 

%

30±2

20±2

15±2

10±2

Conductivity 

Ms/m 

28

24

22

21

Hardness 

HB 2.5/62.5 typ.

180

220

245

250

Density 

Mg/cm3

>14.0

>14.0

>16.0

>16.80

Oxygen 

Max. Of ppm

50

50

50

50

Hydrogen 

Max. Of ppm

10

10

10

10

Nitrogen 

Max. Of ppm

8

8

8

8

We could manufacture and supply all kinds of Cu-W contact for circuit breaker.
TECHNICAL PARAMETERS