 Division Watches and Jewelry |
Data sheet for alloy | |||
| Au 585/3275 Pd | ||||
| Colour | white | Code | 3275 | |
| General description | 14 ct white gold nickel-free alloy, with grain refiner, for casting under protective atmosphere. |
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| Physical properties | Specific gravity [g/cm3] | 14.2 | Melting range [°C] | 1015-1080 |
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| Mechanical properties | Annealed | 20% cold worked | 75% cold worked | ||
|---|---|---|---|---|---|
| Vickers hardness | [HV1] | 150 | 225 | 250 | |
| Yield hardness | Rm | [Mpa] | 530 | 720 | 950 |
| Elastic limit | Rp0.2 | [MPa] | 350 | 690 | 930 |
| Plastic elongation | A | [%] | 40 | 2 | 1 |
| Processing guidelines | |
|---|---|
| ANNEALING | 750 °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 75% reduction in area. |
| SOLDERING | By torch or furnace. The cadmium-free solders N° 324 (715-730 °C) are strongly recommended. For alternatives please see list of solders. |
| PICKLING | with DESOXYD (following operating instructions) or with hot 10% sulphuric acid added to hot 10 g/l ammonium persulphate. The slight change of colour which could appear can be removed by polishing. |
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| 18.03.2005 | METALOR Technologies SA - Av. du Vignoble - CH-2009 Neuchâtel Phone: +41(0)32 720 61 11 - http://www.metalor.com/watch |
10.12.1999 |