 Division Watches and Jewelry |
Data sheet for alloy | |||
| Au 999.9/22 | ||||
| Colour | gold | Code | 22 | |
| General description | fine Gold |
|---|
| Physical properties | Specific gravity [g/cm3] | 19.3 | Melting range [°C] | 1064 |
|---|
| Mechanical properties | Annealed | 20% cold worked | 90% cold worked | ||
|---|---|---|---|---|---|
| Vickers hardness | [HV1] | 45 | 60 | 75 | |
| Yield hardness | Rm | [Mpa] | 150 | 200 | 240 |
| Elastic limit | Rp0.2 | [MPa] | 100 | 190 | 220 |
| Plastic elongation | A | [%] | 30 | 2.5 | 2 |
| Processing guidelines | |
|---|---|
| ANNEALING | 200 °C for 20 to 30 minutes |
| 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 |