Gold Rod

Gold Rod delivers a combination of exceptional conductivity, chemical inertness, and mechanical workability, making it a core material for precision engineering and high-performance electronics. Its uniform crystalline structure and ductility allow for accurate machining, forming, and integration into advanced systems. This material finds primary applications in aerospace electronics, biomedical instrumentation, and high-vacuum systems, where reliability under extreme conditions is essential. Specific uses include electrical feedthroughs for ultra-high vacuum environments, corrosion-resistant interconnects in mission-critical electronics, and precision optical mounts in laser systems. In research, gold rods are indispensable for fabricating plasmonic components, nanoscale electrodes, and photonic structures, where their purity ensures reproducible experimental results. With their stable surface chemistry and unmatched electrical properties, gold rods are vital in both industrial production and scientific exploration, bridging the gap between fundamental research and large-scale technology deployment.

Quick Links:

Tolerance

Properties

Reference & Citations

each

Tolerances

Rod

Diameter	=<10mm	±10%
Diameter	>10mm	±5%

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	79
Crystal structure	Face centred cubic
Electronic structure	Xe 4f¹⁴ 5d¹⁰ 6s¹
Valences shown	1,3
Atomic weight( amu )	196.9665
Thermal neutron absorption cross-section( Barns )	98.8
Photo-electric work function( eV )	4.8
Atomic radius - Goldschmidt( nm )	0.144
Ionisation potential( No./eV )	1/ 9.22
Ionisation potential( No./eV )	2/ 20.5

Mechanical Properties

Element	Value
Material condition	Soft
Material condition	Hard
Poisson's ratio	0.42
Poisson's ratio	0.42
Bulk modulus( GPa )	171
Bulk modulus( GPa )	171
Tensile modulus( GPa )	78.5
Tensile modulus( GPa )	78.5
Hardness - Vickers( kgf mm⁻² )	20-30
Hardness - Vickers( kgf mm⁻² )	60
Tensile strength( MPa )	130
Tensile strength( MPa )	220
Yield strength( MPa )	205
Yield strength( MPa )	-

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	2.20@20@20°C
Temperature coefficient( K⁻¹ )	0.004@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.74

Physical Properties

Element	Value
Boiling point( C )	3080
Density( gcm⁻³ )	19.3@20°C

Thermal Properties

Element	Value
Melting point( C )	1064.4
Latent heat of evaporation( J g⁻¹ )	1738
Latent heat of fusion( J g⁻¹ )	64.9
Specific heat( J K⁻¹ kg⁻¹ )	129@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	318@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	14.1@0-100°C