Material Database

AuCu14Pt8.5Ag4 | similar to ASTM B451 / Hera 249

  • General Designation: AuCu14Pt8.5Ag4 | similar to ASTM B451
  • Applications: contacts, slip rings, sliding contacts
  • Product Forms: wire, strip
  • Density (g/cm³): 15.8


Age Hardenable
Forming Process

corrosion resistant

IACS Min. (%) [100% IACS ≙ 58 S*m/mm²]
IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]

Young's Modulus (GPa)
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
160 - 230 580 - 760 > 20
Stress Relieved
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
260 - 330 850 - 1200 2 - 15
Age hardened
Hardness (HV)
Tensile strength (MPa)
Yield strength (MPa)
Elongation (%)
290 - 360 1000 - 1400 1 - 10
Property Range
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
160 - 360 580 - 1400 1 - 20

Melting Range
From Temperature (°C)
To Temperature (°C)


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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