Material Database


  • General Designation: AgCu20
  • Applications: slip rings, sliding contacts, switching contacts, contacts
  • Product Forms: strip, wire
  • Density (g/cm³): 10.13


Material Behaviour

Susceptible to attack by sulphur

IACS Min. (%) [100% IACS ≙ 58 S*m/mm²]
IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]
Temperature coefficient of electric resistivity
From Temperature (°C)
To Temperature (°C)
Hard (x10-4/K)
Annealed (x10-4/K)
0 100 4.3

Young's Modulus (GPa)
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
80 - 120 300 - 400 200 - 300 > 20
Work hardened
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
130 - 190 450 - 700 450 - 600 2 - 4
Property Range
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
80 - 190 300 - 700 200 - 600 2 - 20

Melting Range
From Temperature (°C)
To Temperature (°C)
779 820
Linear Coefficient of Expansion³
From Temperature (°C)
To Temperature (°C)
Coefficient (x10-6/K)
20 100 19.3


The information in this data sheet contains only general information on the use of our products or examples for their application. They do not release the customer from a careful inspection of the delivered product for its fitness for the customer's particular purpose of use. Any customer's special requests regarding the particular use of a product will only be authoritative if Heraeus has confirmed to the customer in writing at the time of conclusion of a corresponding contract that the product delivered is fit for the customer's intended use. Heraeus, therefore, does not guarantee the correctness and completeness of the information regarding the customer's intended use. The customer's purchase will be governed exclusively by the written order confirmation of Heraeus and the Heraeus General Terms of Sale and Delivery, which are available at This data sheet may be subject to changes at any time.

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