AuAg26.5Cu15

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Description

The color gold jewelery alloy AuAg26.5Cu15.0, in the literature also 585Au-265Ag-150Cu, corresponds to a fineness of 585/1000 Au, also with 14 Karat (24 Karat is 1000/1000 Au = fine gold). The alloy (name: Au 585 S) has a pale yellow color and is used for wedding rings.

Related Standards

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

13.65 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

74 - 81 GPa

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Typical for Gold

Hardness, Vickers, 10

20.0 °C

175 [-]

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Poisson's ratio

23.0 °C

0.42 [-]

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Typical for Gold

Shear modulus

23.0 °C

26 GPa

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Typical for Gold

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.4E-5 1/K

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Typical for Gold

Melting point

1064 °C

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Typical for Gold

Specific heat capacity

23.0 °C

126 - 138 J/(kg·K)

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Typical for Gold

Thermal conductivity

23.0 °C

292 - 316 W/(m·K)

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Typical for Gold

Chemical properties

PropertyValue

Copper

15 %

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Gold

58.5 %

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Silver

26.5 %

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