Silver tungsten material
Silver tungsten material
Silver tungsten materials are used in industrial and domestic circuit breaker applications where good weld and erosion resistance is important. Various grades are available: - the higher silver grades have higher conductivity, and the higher tungsten grades have greater erosion and weld resistance.
High contact pressures are required to ensure effective operation if used for frequent high current switching, where mixed oxides of silver tungsten can be formed, giving high contact resistance.
Silver tungsten data sheet
|
Grade |
Ag%(WT) |
W%(WT) |
Density (Min) |
Electric Conductivity (Min) |
Hardness (Min) |
| AgW55 | 45±2 | Balance | 13.55g/cm3 | 58%IACS | 115HB |
| AgW60 | 40±2 | Balance | 14.00g/cm3 | 56%IACS | 125HB |
| AgW65 | 35±2 | Balance | 14.50g/cm3 | 53%IACS | 135HB |
| AgW70 | 30±2 | Balance | 14.90g/cm3 | 51%IACS | 150HB |
| AgW75 | 25±2 | Balance | 15.40g/cm3 | 48%IACS | 165HB |
| AgW80 | 20±2 | Balance | 16.10g/cm3 | 45%IACS | 180HB |
Silver WC data sheet
|
Grade |
Ag%(WT) |
WC%(WT) |
Density (Min) |
Electric Conductivity (Min) |
Hardness (Min) |
| AgWC50 | 50±2 | Balance | 12.20g/cm3 | 29%IACS | 85HRB |
| AgWC40 | 60±2 | Balance | 11.70g/cm3 | 34%IACS | 72HRB |
| AgWC30 | 70±2 | Balance | 11.20g/cm3 | 36%IACS | 57HRB |
CTIA E-biz Center can provide Silver tungsten electrical contact and Silver tungsten electrode, and special sizes can be manufactured based on customers' requirements.
Related Links
Tungsten Copper
Property Data Sheet of Silver Tungsten Material (PDF)