Material Database

PtW5 / Hera 157

  • General Designation: PtW5
  • Applications: spark plug electrodes
  • Product Forms: wire
  • Density (g/cm³): 21.3

Details

Age Hardenable
No
Material Behaviour
ductile
Forming Process
formable, machinable, can be roll clad

Comment
oxidation resistant to 1100°C

IACS Min. (%) [100% IACS ≙ 58 S*m/mm²]
3.91
IACS Max. (%) [100% IACS ≙ 58 S*m/mm²]
4
Thermo-emf. vs. copper Hard (mV)
0.6
Temperature coefficient of electric resistivity
From Temperature (°C)
To Temperature (°C)
Hard (x10-4/K)
Annealed (x10-4/K)
0 100 6.4 6.8

Young's Modulus (GPa)
181
Modulus of Rigidity (GPa)
81
Property Range
Hardness (HV)
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
180 - 280 600 - 900 400 - 900 1 - 25

Melting Range
From Temperature (°C)
To Temperature (°C)
1830 1850
Linear Coefficient of Expansion³
From Temperature (°C)
To Temperature (°C)
Coefficient (x10-6/K)
20 100 8.52
20 200 8.66
20 300 8.85
20 400 9
20 500 9.15
20 600 9.28
20 700 9.44
20 800 9.56
20 900 9.69
20 950 9.76
100 200 8.77
200 300 9.2
300 400 9.41
400 500 9.72
500 600 9.92
600 700 10.37
700 800 10.37
800 900 10.73
900 950 10.94

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.

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