 Division Watches and Jewelry |
Data sheet for alloy | |||
| Ag 999.9/81 | ||||
| Colour | silver | Code | 81 | |
| General description | fine Silver |
|---|
| Physical properties | Specific gravity [g/cm3] | 10.5 | Melting range [°C] | 962 |
|---|
| Mechanical properties | Annealed | 20% cold worked | 90% cold worked | ||
|---|---|---|---|---|---|
| Vickers hardness | [HV1] | 45 | 80 | 100 | |
| Yield hardness | Rm | [Mpa] | 180 | 220 | 300 |
| Elastic limit | Rp0.2 | [MPa] | 70 | 190 | 260 |
| Plastic elongation | A | [%] | 45 | 4 | 2 |
| Processing guidelines | |
|---|---|
| ANNEALING | 300 °C for 20 to 30 minutes then quenched in water. In order to avoid oxidation, work under reducing atmosphere. |
| COLD WORKING | The amount of coldwork completed before annealing should be between 30% and 90% reduction in area. |
| SOLDERING | - |
| PICKLING | - |
| - | - |
| - | - |
| 18.03.2005 | METALOR Technologies SA - Av. du Vignoble - CH-2009 Neuchâtel Phone: +41(0)32 720 61 11 - http://www.metalor.com/watch |
04.04.2003 |