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to Gold alloys
to Properties of gold alloys
(submitted by the website administration)
| Gold | ||||
| Chemical composition: Au | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 19.32 *10³ | kg/m³ | 1206 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 79 | GPa | 11450 | ksi |
| Thermal expansion (20 ºC) | 14.2*10-6 | ºCˉ¹ | 7.9*10-6 | in/(in* ºF) |
| Specific heat capacity | 129 | J/(kg*K) | 0.0308 | BTU/(lb*ºF) |
| Thermal conductivity | 310 | W/(m*K) | 2149 | BTU*in/(hr*ft²*ºF) |
| Heat of fusion | 6.3*104 | J/kg | 27 | BTU/lb |
| Electric resistivity | 2.44*10-8 | Ohm*m | 2.44*10-6 | Ohm*cm |
| Tensile strength (annealed) | 124 | MPa | 17985 | psi |
| Elongation (annealed) | 45 | % | 45 | % |
| Hardness (annealed) | 25 | HV | 25 | HV |
| Melting point | 1064.4 | ºC | 1948 | ºF |
| Annealing temperature | 300 | ºC | 575 | ºF |
