AgW Silver Tungsten Alloy Plate
Description
Silver tungsten alloy (W-Ag) is also called tungsten silver alloy, is the composite of tungsten and silver. High conductivity, thermal conductivity, and a high melting point of silver on the other hand high hardness, welding resistance, small material transfer, and high burning resistance of tungsten are combined into silver tungsten sintering material. Silver and tungsten are not compatible with each other. Silver and tungsten binary alloys are typically manufactured via powder metallurgy. For tungsten content over 60%, we will use the infiltration method. The properties of Tungsten composites are related to the silver-to-tungsten ratio. While tungsten content improves, the electric arc and wear resistance will increase, the thermal and electrical conductivity will reduce.
Properties
| Grade | Ag % |
Total Impurities % (≤) |
W % |
Density g/cm3 (≥) |
Hardness HRB (≥) |
Resistivity μΩ·cm (≤) |
Conductivity IACS/% (≥) |
| AgW30 | 70±1.5 | 0.5 | Bal. | 11.75 | 75 | 2.3 | 75 |
| AgW40 | 60±1.5 | 0.5 | Bal. | 12.4 | 85 | 2.6 | 66 |
| AgW50 | 50±1.5 | 0.5 | Bal. | 13.15 | 105 | 3 | 57 |
| AgW55 | 45±1.5 | 0.5 | Bal. | 13.55 | 115 | 3.2 | 54 |
| AgW60 | 40±1.5 | 0.5 | Bal. | 14 | 125 | 3.4 | 51 |
| AgW65 | 35±1.5 | 0.5 | Bal. | 14.5 | 135 | 3.6 | 48 |
| AgW70 | 30±1.5 | 0.5 | Bal. | 14.9 | 150 | 3.8 | 45 |
| AgW75 | 25±1.5 | 0.5 | Bal. | 15.4 | 165 | 4.2 | 41 |
| AgW80 | 20±1.5 | 0.5 | Bal. | 16.1 | 180 | 4.6 | 37 |
Features
High arc erosion resistance
Excellent electrical conductivity
Outstanding contact welding resistance
Very low chopping current
High conductivity, high hardness
High heat conductivity
Wear resistance, resistance to the burning of the arc
Applications
electric industry: connectors, thermal conductors, switch accessories, electric connectors, circuit breaker accessories, switch contacts, electronic equipment parts and other parts and consumable parts; electric welding electrodes, seam welding wheels, spot welding electrodes, radiating fins, electrosparking discharge electrodes, electroerosion machining or electric contact machining, high-temperature-resistant equipment parts needing electric conductivity, arc striking substrates and fasteners of anti-thunder equipment, high-voltage protection plates, counterweights, electronic packaging heat sink materials, radiators, etc.
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