Material Database

AuAg20Cu10 / Hera 238

  • General Designation: AuAg20Cu10
  • Applications: contacts, slip rings, sliding contacts
  • Product Forms: wire, strip
  • Density (g/cm³): 15.03

Details

Age Hardenable
Yes
Material Behaviour
ductile
Forming Process
formable, machinable, can be roll clad

Comment
corrosion resistant

IACS Min. (%) [100% IACS ≙ 58 S*m/mm²]
12.46
IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]
12.55
Thermo-emf. vs. copper Hard (mV)
-0.19
Temperature coefficient of electric resistivity
From Temperature (°C)
To Temperature (°C)
Hard (x10-4/K)
Annealed (x10-4/K)
0 100 5.2 5.2
Sliding Contact
From Ampere
To Ampere
From Volt
To Volt
0 1 0 30

Young's Modulus (GPa)
87
Modulus of Rigidity (GPa)
37
Annealed
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
120 - 170 400 - 600 > 25
Stress Relieved
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
220 - 300 650 - 900 3 - 15
Age hardened
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
280 - 340 850 - 1100 < 5
Property Range
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
120 - 340 400 - 1100 3 - 25

Melting Range
From Temperature (°C)
To Temperature (°C)
865 895
Thermal conductivity (W /(m*K)) [RT]
66
Linear Coefficient of Expansion³
From Temperature (°C)
To Temperature (°C)
Coefficient (x10-6/K)
20 30 15.9
20 200 16.2
20 300 16.7
20 400 18.2
20 500 18.5
20 600 18.8
20 700 19.1
20 800 19.5
100 200 16.4
200 300 17.5
300 400 22.7
400 500 19.6
500 600 20
600 700 21
700 800 22.3

Disclaimer

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 www.heraeus.com/gtc. This data sheet may be subject to changes at any time.

www.heraeus-precious-metals.com

Discuss your solution

Get in contact with experts to discuss further steps to find the optimal solution for your process.

Contact us now