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Material Description

Material Number Material Name Standard Status VDA 231-106 classification
AgCu28 AgCu28 Valid 4.2 1)
1) Remark: 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).

Chemical Composition

Ag [%] Cu [%]
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Material Compliance

REACh RoHS
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Mechanical Properties

Temperature [°C] Tensile Strength [MPa] Elongation A [%] Hardness HV 10
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Physical Properties

Condition Temperature [°C] Melting Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm] Electric Conductivity [MS/m]
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Cross Reference

Material Name
Ag72Cu28
72Ag28Cu

Producer/Supplier/Trade names

Tradename Supplier
AgCu28 Evonik-Degussa GmbH, Essen