Palladium
Palladium 500
500‰
Light silver-white, similar to white gold at lower purity. The alloy composition significantly affects final appearance
Composition
50% palladium + 50% silver, copper, and other metals
Physical properties
| Density | 10.50 g/cm³ | Weight per unit volume. Platinum is ~40% heavier than 18k gold at equal size |
|---|---|---|
| Melting range | 1380–1450 °C | Working temperature for alloys. Pure metals have a sharp melting point |
| Vickers hardness | 100 HV | Higher HV = greater scratch resistance in service |
| Mohs hardness | 4 | Approximate equivalent for comparative reference |
| Tensile strength | 280 MPa | Resistance to breaking under tension, relevant for prongs and fine settings |
| Purity | 50.00% | Fine metal content by mass |
| Tarnish resistance | Very good | Surface oxidation / sulphidation under typical wear conditions |
| Workability | Good | Ease of forming, soldering, and fabricating under standard jewellery workshop conditions |
| Hypoallergenic | Hypoallergenic | Likelihood of triggering skin reactions under normal wear |
Common uses
Affordable white metal jewellery, alternative to white gold for budget-conscious buyers seeking hypoallergenic options
Hallmarking & identification
Stamped 500Pd or PD500 in markets where palladium hallmarking is recognised.
Care & maintenance
Durable and tarnish-resistant. Clean with warm soapy water and soft cloth.
Market & pricing
More affordable than 950Pd while retaining hypoallergenic properties and natural white colour.