Want to keep this datasheet? Save it now in your required format


AgCu28, also known as Ag72Cu28 or 72Ag28Cu, is ductile, has good spring properties, is sulfur sensitive, and is non-oxidation resistant. It is machinable, roll-cladable and conditionally separable from the gas phase. Application: AC and DC switches for power and telecommunications at switching currents up to 10 A, occasionally up to 25 A, more rarely at higher currents and as a silver-based vacuum braze alloy for electron tubes (soldering range 780 to 900 °C).

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.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





20.0 °C

10 g/cm³

Show Material materials with Density of 10 g/cm³



Elastic modulus

20.0 °C

100 GPa

Show Material materials with Elastic modulus of 100 GPa


20.0 °C

20 - 28 %

Show Material materials with Elongation of 20 - 28 %

Hardness, Vickers, 10

20.0 °C

98 - 177 [-]

Show Material materials with Hardness, Vickers, 10 of 98 - 177 [-]

Poisson's ratio

23.0 °C

0.37 [-]

Show Material materials with Poisson's ratio of 0.37 [-]

Typical for Silver

Shear modulus

23.0 °C

30 GPa

Show Material materials with Shear modulus of 30 GPa

Typical for Silver

Tensile strength

20.0 °C

350 MPa

Show Material materials with Tensile strength of 350 MPa



Coefficient of thermal expansion

300.0 °C

1.86E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.86E-5 1/K

Melting point

962 °C

Show Material materials with Melting point of 962 °C

Typical for Silver

Specific heat capacity

23.0 °C

234 - 251 J/(kg·K)

Show Material materials with Specific heat capacity of 234 - 251 J/(kg·K)

Typical for Silver

Thermal conductivity

20.0 °C

352 W/(m·K)

Show Material materials with Thermal conductivity of 352 W/(m·K)



Electrical conductivity

20.0 °C

4.61E+7 S/m

Show Material materials with Electrical conductivity of 4.61E+7 S/m

Electrical resistivity

20.0 °C

2.2E-8 Ω·m

Show Material materials with Electrical resistivity of 2.2E-8 Ω·m

Chemical properties



28 %

Show Material materials with Copper of 28 %


72 %

Show Material materials with Silver of 72 %