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Comparative melting temperature table for gold, silver, and platinum. Calculate melting points and workshop casting alloys accurately on GoldPrice24.
| Alliage / Métal | °C (Celsius) | °F (Fahrenheit) |
|---|---|---|
| Or Pur (24K) | 1064°C | 1947°F |
| Or 18K Jaune | 926°C | 1699°F |
| Or 18K Blanc (Palladium) | 1040°C | 1904°F |
| Or 14K Jaune | 879°C | 1614°F |
| Or 9K | 885°C | 1625°F |
| Argent Pur | 961°C | 1762°F |
| Argent 925 (Sterling) | 890°C | 1634°F |
| Platine | 1768°C | 3214°F |
| Palladium | 1555°C | 2831°F |
| Cuivre | 1085°C | 1985°F |
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The melting temperature of a metal is the point at which it transitions from solid to liquid state. Pure gold melts at 1064°C, pure silver at 961°C, and platinum at 1768°C. Alloys melt at temperatures different from their pure components — a phenomenon known as 'melting point depression' caused by eutectics.
In Swiss jewellery production, the most common alloys are: 750‰ yellow gold (910–950°C), 750‰ palladium white gold (1060–1100°C), 750‰ rose gold (905–930°C), 925‰ sterling silver (893°C). Knowing these temperatures is crucial for choosing the appropriate solder (the solder must melt before the main alloy) and preventing thermal accidents.
Workshop safety during smelting requires proper equipment: graphite or high-temperature ceramic crucibles, heat-resistant gloves (Kevlar type), IR protective goggles, and adequate ventilation to evacuate metallic fumes. Professional casters use an optical pyrometer to precisely measure bath temperature, as exceeding by 50°C can cause excessive oxidation and significant metal loss.
Prices shown are indicative (LBMA mid-market). They do not constitute investment advice.
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